EK6 Earthing switch
Instruction manual
EK6 Earthing switch
Your safety first – always!
That’s why our instruction manual begins with these recommendations: • Only install switchgear and/or switchboards in enclosed rooms suitable for electrical equipment. • Ensure that installation, operation and maintenance are carried out by specialist electricians only. • Comply in full with the legally recognized standards (IEC), the connection conditions of the local electrical utility and the applicable safety at work regulations. • Observe the relevant information in the instruction manual for all actions involving switchgear and switchboards.
Danger! Pay special attention to the hazard notes in the instruction manual marked with this warning symbol. • Make sure that under operation condition of the switchgear or switchboard the specified data are not exceeded. • Keep the instruction manual accessible to all persons concerned with installation, operation and maintenance. • The user’s personnel are to act responsibly in all matters affecting safety at work and the correct handling of the switchgear.
WARNING Always follow the instruction manual and respect the rules of good engineering practice ! Hazardous voltage can cause electrical shocks and burns. Disconnect power, then earth and short-circuit before proceeding with any work on this equipment.
•
If you have any further questions on this instruction manual, the members of our field organization will be pleased to provide the required information.
Contents
1 2 3 4 5 6
Summary Technical Data Structure and Funktion Installation Maintenance Dimensional drawings
Page 4 4 6 8 9 10
EK6 | Contents 3
1
Summary
Earthing switches of series EK6 are determined for indoor installation and conform to the requirements of IEC 62271-102. They are fitted with snap-action operating mechanisms for positive high-speed closing and sufficiently dimensioned to conduct the rated short-circuit making current when closed under load. The speed of the snap-action closing operation is independent controls. The earthing switches are supplied as kits with a pre-assembled active part and corresponding earthing contacts supplied loose. Correct installation of these parts in a switchgear panel results in a functioning earthing switch. Routine tests to IEC 62271-102 arc to be carried out at site accordingly.
Dimensional drawing
Typ
p mm
Rated shortcircuit duration
Part number
Rated short-time current
Pole centres
Weight
Earthing switch
Rated impulse test voltage
Technical data Rated Voltage
2
Rated short circuit making current (For various feed directions)
Number
Sheet U kV
UI kV
Ith kA
tth s
Ima kA
Ima kA
75
31.5
3
65
80
120
kg
EK6-R-1208 -Z- 150
150
GCE 716 93 12 R11 01
111)
GCEM360524
1
EK6-R-1208 -P- 150
150
GCE 716 93 12 R21 01
111)
GCEM360524
1
EK6 – 1208 – 210
210
GCE 716 93 12 R01 02
121)
GCEM360524
1
EK6 – 1208 – 275
275
GCE 716 93 12 R11 03
131)
GCEM360524
2
EK6 – 1208 – 150
150
GCE 716 93 12 R01 14
13
GCEM700092
1
EK6 – 1208 – 210
210
GCE 716 93 12 R01 15
14
GCEM700092
1
EK6 – 1208 – 275
275
GCE 716 93 12 R01 16
16
GCEM700092
2
EK6 - 1212 - 210
210
GCE 700 17 32 R01 01
31
GCEM700059
1
40
3
–
EK6 - 1212 - 275
275
GCE 700 17 32 R01 02
31
GCEM700059
1
50
1
–
120
EK6 – 1706 – 150
150
GCE 716 93 12 R01 44
13
2)
31.5
3
–
80
EK6 – 1706 – 210
210
GCE 716 93 12 R01 42
14
2)
EK6 – 1706 – 210
210
GCE 716 93 12 R01 45
14
2)
EK6 – 1706 – 275
275
GCE 716 93 12 R01 46
16
2)
EK6-1710–210
210
GCE 700 17 32 R01 06
31
2)
40
3
–
100
EK6-1710–275
275
GCE 700 17 32 R01 05
31
2)
EK6-1710–275
275
GCE 700 17 32 R01 04
31
2)
EK6 – 2406 – 210
210
GCE 716 93 12 R01 05
12
GCEM700092
5
25
3
50
63
EK6-R-2406-Z-210
210
GCE 716 93 12 R11 04
12
GCEM700092
5
EK6-R-2406-P-210
210
GCE 716 93 12 R21 04
12
GCEM700092
5
EK6 – 2406 – 275
275
GCE 716 93 12 M01 06
14
GCEM700092
6
EK6 – 2406 – 210
210
GCE 716 93 12 R01 17
14
GCEM700092
5
EK6 – 2406 – 275
275
GCE 716 93 12 R01 18
16
GCEM700092
6
EK6 – 2406 – 210
210
GCE 716 93 12 R01 19
14
GCEM700092
8
25
3
–
63
EK6 – 2406 – 275
275
GCE 716 93 12 R01 21
16
GCEM700092
9
1) without earthing contact 2) Dimensional drawings on request. The earthing switches are suitable for the normal operating conditions of the „minus 5 indoor class“.
4 Summary | EK6
12
17.5
24
95
125
Key to order code: Earthing switch version
Type designation
Earthing switch
E ·
·
–
·
–
·
·
–
·
–
·
With snap action mechanism
·
K ·
–
·
–
·
·
–
·
–
·
Design code
·
·
6
–
·
–
·
·
–
·
–
·
Mechanism on right
·
·
·
–
R –
·
·
–
·
–
·
Rated voltage 12 kV
·
·
·
–
·
–
12 ·
–
·
–
·
Rated short circuit making current 80 kA
·
·
·
–
·
–
·
08 –
·
–
·
Predominantly for panel type ZK8 (P types predominantly for panel type ZP)
·
·
·
–
·
–
·
·
–
Z –
·
Pole centres 150 mm
·
·
·
–
·
–
·
·
–
·
–
150
Complete type designation
E K 6
–
R –
Z –
150
12 08 –
EK6 | Key to order code 5
3
Structure and function
Earthing switches of series EK6 have three pairs of earthing blades which are located on the operating shaft and are freely movable. The pairs of earthing blades are electrically connected to each other by a short-circuiting bridge and to earth potential at the bearing brackets by two stranded copper conductors. Driver levers and toggle springs located between the bearing brackets are used to transmit the force during the switching process. Fixing the active part on a torsionally rigid switchgear panel wall or crossbeam provides it with the necessary stability. The earthing contacts designed to suit the relevant switch type are to be bolted to the conductor bars supported on suitable insulating parts, e.g. pintype insulators or current transformers, on the opposite side and parallel to each other, and the position adjusted until it conforms to that show in the dimensional drawings.
1
2
Figure 1: Example of the active part of an earthing switchmounted on a switchgear panel partition, shown in the open position. 1 2 3 4 5 6
7 8
Bearing bracket Toggle spring Short-circuiting bridge Pair of earthing blades Eathing conductor Bevel gear mechanism (not belonging to the earthing switch) Actuating shaft Driver lever
6
6 Structure and Function | EK6
7
8
The earthing switch has a snap action closing mechanism which functions independently of the rotation of the drive shaft. The switching speed and torque achieved in this process are independent of the actions of the operating mechanism. In the opening process, in contrast, the toggle springs have no effect on the speed of contact separation. A ring lever or suitable manual or motorized operating mechanism with the necessary torque for the type of switch and an operating angle 90° can be fitted for operation of the switch. Note: Always open earthing switches by turning until the stop is reached. The earthing switches can also be fitted with an auxiliary switch for annunciation purposes.
3
4
5
11
8
9
2
7
Figure 2: Example of an earthing switch mounted in a switchgear panel, shown in the closed position.
2 7 8 9 10 10.1 11
Toggle spring Actuating shaft Driver lever Setting ring Earthing contact Earthing tongue Current transformer
10
10.1
Figure 3: Live parts of an earthing switch with a rated short-circuit making current of 120 kA, mounted on a sheet steel partition.
EK6 | Structure and Function 7
4
Instalation
When installing earthing switches in switchgear panels, the following details must be taken into account if perfect switching functions etc. are to be achieved: • The active part of the earthing switch is supplied in the open position and with pretensioned toggle springs. • The earthing switch can be installed in any position. • Do not operate the switch without earthing contacts! • Install the active part and earthing contacts without stress or distortion and parallel to each other on a torsionally rigid and flat panel wall/crossbeam and conductor bar respectively. • Precisely maintain the spatial/dimensional position of the earthing contacts relative to the active part as shown in the dimensional drawing for the relevant switch type. • Only use insulated mountings with a cantilever strength equivalent to a cast resin pin type insulator to DIN 48136: – For switches to dimensional diagram GCEM 360524, sheets 1 and 2 and GCEM 700092, sheets 1, 2, 5, 6, 8 and 9: Form B, 12 kV or 24 kV, 7.5 kN – For switches to dimensional diagram GCEM 700059, sheet 1: Form C, 12 kV, 16 kN • Fit the operating mechanism. • The operating shaft can be moved after the two setting rings have been released. Observe the tightening torque of 4 Nm for the M6 threaded pins. • Adjust the motion sequence of the earthing blades in relation to the earthing contacts as follows: 1. Grease the contact areas. 2. Close the switch with the fixing bolts in the earthing contacts loosely tightened. 3. Check that the blade pairs are properly located on the contact tongues of the earthing contacts and adjust if necessary. 4. Tighten the fixing bolts and carry out a test switching operation. 5. Maximum permissible deviation between the central position of the earthing blades and the contact tongues of the earthing contacts: • ≤ 1 mm for switches to dimensional diagram GCEM 360524, sheets 1 and 2, and GCEM 700092, sheets 1, 2, 5, 6, 8 and 9 • ≤ 0.6 mm for switches to dimensional diagram GCEM 700059, sheet 1. Measuring Point: Clearance between the earthing blades and the contact tongues during opening. Take care when handling the switch!
8 Instalation | EK6
6. Irrespective of the routine testing of the relevant switchgear panels/switchboard to IEC 62271-200, the earthing switch is to be subjected to routine testing in accordance with IEC 62271-102, on completion of installation. • Check for unimpeded function of the high-speed switching system when the switch has been installed without stress or distortion. • Check the tightening torque for the M 12 hexagon nut on the short-circuiting bridge, possibly removing a pair of earthing blades to provide access. This torque is important for correct function! Rated tightening torque: – without lubricant: 86 Nm – with oil or grease lubricated: 40 Nm. • Bolt the copper earthing conductors to the bearing brackets and connect the other ends to the switchboard earthing bar. • Perform at least 20 mechanical opening and closing operations on the earthing switch after completion of installation. Auxiliary switches: • Auxiliary switches on the side wall of the switchgear panel: – 2 x 5 pole auxiliary switches: GCE 8282292R0101 (contact arrangement as per order) – Signalling of open and closed positions – Operation by rod mechanism (engages with M 12 threaded bar) • Auxiliary switches on the rear wall of the switchgear panel: – S1 + S2 (2 NCC + 2 NOC = 2 change-over): GCE 7169 272 R0108 – S1 + S2 + S3 (3 NCC + 3 NOC = 3 change-over): GCE 7169 272 R0107 – Signalling of the closed position only.
5
Maintenance
Closing of the switch several times under load conditions (maximum loading two closing operations at 100 % of the rated short-circuit making current) makes inspection and possibly mainten ance necessary. The electrical and mechanical functions of the switch must not be adversely affected, and only slight contact welding is permissible. The pairs of earthing blades and the earthing contacts should be replaced if necessary. Otherwise, it is advisable to carry out inspection and maintenance of the earthing switches at appropriate intervals together with the switchboard, particularly in exceptional operating conditions and/or under adverse environmental influences such as pollution and aggressive air: • Check whether the operating mechanism functions smoothly and easily. • Carry out general visual examination for the condition of mechanical fasteners, dirt, moisture and corrosion. • Remove any dust deposits on insulating parts with a dry, non-fraying cloth (do not use cleaning wool). • Regrease the mechanically movable parts and contacts (applying grease thinly) using Isoflex Topas NB 52 lubricant, ABB part number (ordering reference) GCE0007249P0100. • Take into account the details given in section 4 in as far as these are relevant to the work.
EK6 | Maintenance 9
,7
19
°
a
3
H
B
B
36
22
Md ON
GCE7169312R1101
EK6-R-1208-Z-150
150 424 300 247-20 48
210 Nm 110Nm 11
210 Nm 110Nm 12
Weight kg
EK6-R-1208-P-150 150 424 300 195-20 100 210 Nm 110Nm 11
Md OFF
GCE7169312R2101
210 544 420 247-20 58
f
EK6-1208-210
g
58
87
90
°
35,5
0
255 +- 1,5
S 13
15
20 10 40
38
E: GCE8684219P0101
265
) maximum projection of contact blades: 5 mm (rated dimensions: 3 mm)
+
Caution! Observe the notes on installation in section 4.
GCE7169312R0102
c
(195)
Type
a
50
See section 4 for the auxiliary switches fitted
225
Part number
p
L 9 x 19
25
B-B
29
4
17
90
L
ø5
96
g
65
R
E = Earthing contact, H = Auxiliary switch, L = Rating plate, S = Operating/Switching angle, W = Shaft section, C = ON, O = OFF,
A-A
96
c
p
25
50
25
10
90
87
58 35,5 °
0
250
40
+3 0
6
17
80
12
75
Dimensional drawing GCEM360524, Sheet 1
12 kV-Types
90O 90O
ø 13
ø 11
Earthing switch EK6
Operating angle: Switching angle:
60
26
30
E: GCE6186188P0101
Contact blade distance: 8 ± 0,3 mm Contact thickness: 10 mm Contact force: 734 N Contact spring force (cup springs): 313 N
E: GCE8384542P0180
ø 13
ø 15
C
S
15
4
17
W
A
48
p
25
5
*) *) 40
25
35 160
3 72 25
6 117
A
f
R
0 ø 30 - 0,1
29
10 40 26 17
10 Dimensionals drawing | EK6 275
6 Dimensionals drawing
96
L
a
ø5
3
115
H
Type
GCE7169312R0103 EK6-1208-275
Part number
a
c
g
f
Md OFF
Md ON
36
22 L 9 x 19
225
50 (195)
C
S
58
87
90
Weight kg
Caution! Observe the notes on installation in section 4.
°
0
15
B-B
35,5
– See dimensional drawing GCEM 360 524, sheet 1, for shaft profile – See section 4 for auxiliary switches fitted
275 674 550 195-20 100 210 Nm 110Nm 13
p
B
B
96
g
4
250
17
E = Earthing contact, H = Auxiliary switch, L = Rating plate, S = Operating/Switching angle, C = ON, O = OFF,
48
25
5
p
c
p
25
p
35 160
25
S +3 0
40
f
6
17
80
12
75
ø 13
ø 11
12 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
GCEM360524, Sheet 2
Dimensional drawing
90O 90O
Contact blade distance: 8 + 0,3 mm Contact thickness: 10 mm Contact force: 734 N Contact spring force (cup springs): 313 N
E: GCE6186188P0101
60
26
30
275
10 40 26 17
29
R
EK6 | Dimensionals drawing 11
L
ø5
a
3
c
H
B
B
k
EK6-1208-150
EK6-1208-210
GCE7169312R0114
GCE7169312R0115
a
c
g
210 544 420 175
150 424 300 160
p
1) including earthing contact (Weight 3 Pieces: 1,8 kg)
Type
Part number
96
50
75
f
36
22 L 9 x 19
(195)
220 Nm
Md OFF
50
100 220 Nm
75
k
225
87
°
35,5
0
S 262 +- 1,5
15 45 + 2
20
120 Nm
120 Nm
Md ON
13
13
Weight1) kg
Caution! Observe the notes on installation in section 4.
– See section 4 for the auxiliary switches fitted – See dimensional drawing GCEM 360 524, sheet 1, for shaft profile
C
S
58
90
B-B
4
17
E = Earthing switch, H = Auxiliary switch, L = Rating plate, Y = View direction for switch position S = Operating/Switching angle, C = ON, O = OFF,
48
96
25
5
g
29
Y
p
25
p
40
f
35 160
95 +- 4 73 +- 4
9
40
170
12 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
GCEM700092, Sheet 1
Dimensional drawing
90O 90O
Contact blade distance: 8 ± 0,3 mm Contact thickness: 9 mm Contact force: 739 N Contact spring force (cup springs): 720 N
262 +- 1,5
ø 13 / 13,5
E: GCE7003225P0101
32 68 32 20
12 Dimensionals drawing | EK6 R
L
a
ø5
c
3
115
H
EK6-1208-275
GCE7169312R0116
a
c
g
275 674 550 210
p
1) including earthing contact (Weight 3 Pieces: 1,8 kg)
Type
Part number 50
f
Y
Md ON
L 9 x 19
225
50 (195)
C
S
58
87
90
35,5
Weight 1) kg
Caution! Observe the notes on installation in section 4.
– See section 4 for the auxiliary switches fitted – See dimensional drawing GCEM 360 524, sheet 1, for the shaft profile
36
22
220 Nm 120 Nm 16
Md OFF
B
B
100
96
g
°
0
262 +- 1,5
S
45 + 2
20
262 +- 1,5
ø 13 / 13,5
E: GCE7003225P0101
12 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
9
40
GCEM700092, Sheet 2
Dimensional drawing
90O 90O
Contact blade distance: 8 ± 0,3 mm Contact thickness: 9 mm Contact force: 739 N Contact spring force (cup springs): 720 N
15
B-B
4
17
E = Earthing contact, H = Auxiliary switch, L = Rating plate, Y = View direction for switch position indicator S = Operating/Switching angle, C = ON, O = OFF,
48
96
25
5
p
p
25
p
40
f
35 160
95 +- 4 73 +- 4
32 68 32 20
29
R
EK6 | Dimensionals drawing 13
170
96
0 40 - 0,2
p
L
p
a
c 96
L 9 x 19
15
EK6-1212-275
EK6-1212-210
GCE7001732R0102
GCE7001732R0101
1) including earthing contact
Type
a
c
g
210 544 420 175
275 674 550 210
p
60
50
f
Y
100
100
k
B
B
k
25
22
C
210
35 160
58
94
90
°
35,5
50 (195)
300 Nm
Weight 1) kg 190 Nm 31
190 Nm 31
Md ON
Caution! Observe the notes on installation in sector 4.
0
262 +- 1,5
S
0
ø 13 38
I 20
Dimensional drawing GCEM700059, Sheet 1
12 kV-Types for ZS-Feeder
90O 90O
0 38,5 -0,6 mm 0 40 -0,2 mm 500 N
Earthing switch EK6
Operating angle: Switching angle:
Contact blade distance: Contact thickness: Contact force:
15
R2
ø 13
E: GCE7001716P0101
B - B
36
– See dimensional drawing GCEM 360 524, sheet 1, for shaft profile
36
300 Nm
Md OFF
96
g
50
262 +- 1,5
225
Part number
p
0
21
E = Earthing contact, I = Isolator, L = Rating plate, Y = View direction for switch position indicator (ZS1-Type), S = Operating/Switching angle, C = ON, O = OFF,
48
f
90°
92
80 170 20
14 Dimensionals drawing | EK6 R
L
ø5
a
3
c
H
Y
B
B
100
96
36
22 L 9 x 19
C
225
50 (195)
EK6-R-2406-Z-210
EK6-R-2406-P-210 210 544 420 190 -20 115 220 Nm 120 Nm 12
GCE7169312R2104
Weight 1) kg
EK6-2406-210
1) including earthing contact (Weight 3 Pieces: 1,8 kg)
210 544 420 258
210 544 420 47
Md ON
47
220 Nm 120 Nm 12
258 220 Nm 120 Nm 12
220 Nm 120 Nm 14
Md OFF
GCE7169312R1104
50
f
GCE7169312R0105
g
210 544 420 175
c
EK6-2406-210
a
GCE7169312R0117
p
Type
Part number
S
58
°
35,5
0
B-B
321 +- 1,5
S
15
45 + 2
20
SE
5
Caution! Observe the notes on installation in section 4.
– See dimensional drawing GCEM 360524, sheet 1, for shaft profile – See section 4 for auxiliary switches fitted.
87
90
3
23
E = Earthing contact, H = Auxiliary swithch, L = Rating plate, S = Operating/Switching angle, SE = Control electrode varies with panel design; X = View direction for switch position indicator, Y = view direction for switch position indicator, C = ON, O = OFF,
48
96
25
5
g
40
X
p
25
p
35 160
95 +- 4 73 +- 4
32
9
40
Dimensional drawing GCEM700092, Sheet 5
24 kV-Types
90O 90O
170
Earthing switch EK6
Operating angle: Switching angle:
Contact blade distance: 8 ± 0,3 mm Contact thickness: 9 mm Contact force: 353 N Contact spring force (cup springs): 376 N
321 +- 1,5
SE
ø 13 / 13,5
E: GCE7003225P0101
32 68 32 20
f
29
R
EK6 | Dimensionals drawing 15
96
L
a
ø5
c
3
H
B
B
100
96
36
22 L 9 x 19
EK6-2406-275
EK6-2406-275
GCE7169312R0118
GCE7169312M0106
Md OFF
Md ON
(195)
Weight 1) kg
220 Nm 120 Nm 16
f
220 Nm 120 Nm 14
g 50
c
275 674 550 120 -20 55
a
275 674 550 210
p
1) including earthing contact (Weight 3 Pieces: 1,8 kg)
Type
Part number
C
S
87
90
°
35,5
0
321 +- 1,5
40
50
S
15
45 + 2
20
Caution! Observe the notes on installation in Section 4.
– See section 4 for auxiliary switches fitted. – See dimensional drawing GCEM 360 524, sheet 1, for the shaft profile
225
58
29
115
Y
B-B
5
321 +- 1,5
24 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
9
40
ø 13 / 13,5
GCEM700092, Sheet 6
Dimensional drawing
90O 90O
mm mm N N
SE
Contact blade distance: 8 ± 0,3 Contact thickness: 9 Contact force: 353 Contact spring force (cup springs): 376
SE
E: GCE7003225P0101
32
X
g
3
23
E = Earthing switch, H = Auxiliary switch, L = Rating plate, S = Operating/Switching angle SE = Control electrode varies with panel design; X = View direction for switch position indicator, Y = View direction for switch position indicator, C = ON, O = OFF,
48
25
5
p
p
25
p
170
f
35 160
95 +- 4 73 +- 4
32 68 32 20
16 Dimensionals drawing | EK6 R
L
ø5
a
c
3
H
B
B
100
96
36
22 L 9 x 19
g
EK6 -2406-210
GCE7169312R0119
1) including earthing contact
Type
Part number
a
c
g
210 544 420 175
p 50
f
(195)
Md ON
Weight1) kg
225
50
220 Nm 120 Nm 14
Md OFF
87
35,5 °
0
321 +- 1,5
S
15
Caution! Observe the notes on installation in section 4.
– See dimensional drawing GCEM 360 524, sheet 1, for shaft profile – See section 4 for auxiliary switches fitted.
C
S
58
B-B
40
90
3
23
E = Earthing contact, H = Auxiliary switch, L = Rating plate, S = Operating/Switching angle, SE = Control electrode varies with panel design; Y = View direction for switch position indicator, C = ON, O = OFF,
48
96
25
5
Y
p
25
p
5
SE
SE
32
24 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
ø 13 / 13,5
222
mm mm N N
E GCE7003225P0102
9
40
GCEM700092, Sheet 8
Dimensional drawing
90O 90O
Contact blade distance: 8 ± 0,3 Contact thickness: 9 Contact force: 353 Contact spring force (cup springs): 376
45 + 2
E
125 +- 4
f
35 160
20 32 120 32
29
R
EK6 | Dimensionals drawing 17
L
a
ø5
c
3
H
B
B
100
96
36
22
EK6-2406-275
GCE7169312R0121
1) including earthing contact
Type
Part number
a
c
g
275 674 550 210
p 50
f
Md ON
225
50
C
87
35,5 °
0
321 +- 1,5
S
Caution! Observe the notes on installation in section 4.
– See dimensional drawing GCEM 360 524, sheet 1, for shaft profile – See section 4 for auxiliary switches fitted
(195)
Weight1) kg
220 Nm 120 Nm 16
Md OFF
L 9 x 19
S
58
B-B
40
90
29
115
Y
g
3
23
E = Earthing contact, H = Auxiliary plate, L = Rating plate, S = Operating/Switching angle, SE = Control electrode varies with panel design; Y = View direction for switch position indicator, C = ON, O = OFF
48
96
25
5
p
p
25
p
15
5 125 +- 4
SE
147 +- 4
SE
24 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
mm mm N N
9
40
222 ø 13 / 13,5
GCEM700092, Sheet 9
Dimensional drawing
90O 90O
Contact blade distance: 8 ± 0,3 Contact thickness: 9 Contact force: 353 Contact spring force (cup springs): 376
45 + 2
E
E: GCE7003225P0102
32
f
35 160
20 32 120 32
18 Dimensionals drawing | EK6 R
EK6 | Dimensionals drawing 19
http://www.abb.com
The data and ilustrations in this catalogue are not binding. We reserve the right to make changes of the content, in the course of technical development of the product.
1VLM000047 Rev.-, en 2009.04.06
ABB s.r.o. Videnska 117 619 00 Brno, Czech Republic E-mail: [email protected] Tel.: +420 547 152 413 Fax: +420 547 152 190
EK6 Earthing switch
Your safety first – always!
That’s why our instruction manual begins with these recommendations: • Only install switchgear and/or switchboards in enclosed rooms suitable for electrical equipment. • Ensure that installation, operation and maintenance are carried out by specialist electricians only. • Comply in full with the legally recognized standards (IEC), the connection conditions of the local electrical utility and the applicable safety at work regulations. • Observe the relevant information in the instruction manual for all actions involving switchgear and switchboards.
Danger! Pay special attention to the hazard notes in the instruction manual marked with this warning symbol. • Make sure that under operation condition of the switchgear or switchboard the specified data are not exceeded. • Keep the instruction manual accessible to all persons concerned with installation, operation and maintenance. • The user’s personnel are to act responsibly in all matters affecting safety at work and the correct handling of the switchgear.
WARNING Always follow the instruction manual and respect the rules of good engineering practice ! Hazardous voltage can cause electrical shocks and burns. Disconnect power, then earth and short-circuit before proceeding with any work on this equipment.
•
If you have any further questions on this instruction manual, the members of our field organization will be pleased to provide the required information.
Contents
1 2 3 4 5 6
Summary Technical Data Structure and Funktion Installation Maintenance Dimensional drawings
Page 4 4 6 8 9 10
EK6 | Contents 3
1
Summary
Earthing switches of series EK6 are determined for indoor installation and conform to the requirements of IEC 62271-102. They are fitted with snap-action operating mechanisms for positive high-speed closing and sufficiently dimensioned to conduct the rated short-circuit making current when closed under load. The speed of the snap-action closing operation is independent controls. The earthing switches are supplied as kits with a pre-assembled active part and corresponding earthing contacts supplied loose. Correct installation of these parts in a switchgear panel results in a functioning earthing switch. Routine tests to IEC 62271-102 arc to be carried out at site accordingly.
Dimensional drawing
Typ
p mm
Rated shortcircuit duration
Part number
Rated short-time current
Pole centres
Weight
Earthing switch
Rated impulse test voltage
Technical data Rated Voltage
2
Rated short circuit making current (For various feed directions)
Number
Sheet U kV
UI kV
Ith kA
tth s
Ima kA
Ima kA
75
31.5
3
65
80
120
kg
EK6-R-1208 -Z- 150
150
GCE 716 93 12 R11 01
111)
GCEM360524
1
EK6-R-1208 -P- 150
150
GCE 716 93 12 R21 01
111)
GCEM360524
1
EK6 – 1208 – 210
210
GCE 716 93 12 R01 02
121)
GCEM360524
1
EK6 – 1208 – 275
275
GCE 716 93 12 R11 03
131)
GCEM360524
2
EK6 – 1208 – 150
150
GCE 716 93 12 R01 14
13
GCEM700092
1
EK6 – 1208 – 210
210
GCE 716 93 12 R01 15
14
GCEM700092
1
EK6 – 1208 – 275
275
GCE 716 93 12 R01 16
16
GCEM700092
2
EK6 - 1212 - 210
210
GCE 700 17 32 R01 01
31
GCEM700059
1
40
3
–
EK6 - 1212 - 275
275
GCE 700 17 32 R01 02
31
GCEM700059
1
50
1
–
120
EK6 – 1706 – 150
150
GCE 716 93 12 R01 44
13
2)
31.5
3
–
80
EK6 – 1706 – 210
210
GCE 716 93 12 R01 42
14
2)
EK6 – 1706 – 210
210
GCE 716 93 12 R01 45
14
2)
EK6 – 1706 – 275
275
GCE 716 93 12 R01 46
16
2)
EK6-1710–210
210
GCE 700 17 32 R01 06
31
2)
40
3
–
100
EK6-1710–275
275
GCE 700 17 32 R01 05
31
2)
EK6-1710–275
275
GCE 700 17 32 R01 04
31
2)
EK6 – 2406 – 210
210
GCE 716 93 12 R01 05
12
GCEM700092
5
25
3
50
63
EK6-R-2406-Z-210
210
GCE 716 93 12 R11 04
12
GCEM700092
5
EK6-R-2406-P-210
210
GCE 716 93 12 R21 04
12
GCEM700092
5
EK6 – 2406 – 275
275
GCE 716 93 12 M01 06
14
GCEM700092
6
EK6 – 2406 – 210
210
GCE 716 93 12 R01 17
14
GCEM700092
5
EK6 – 2406 – 275
275
GCE 716 93 12 R01 18
16
GCEM700092
6
EK6 – 2406 – 210
210
GCE 716 93 12 R01 19
14
GCEM700092
8
25
3
–
63
EK6 – 2406 – 275
275
GCE 716 93 12 R01 21
16
GCEM700092
9
1) without earthing contact 2) Dimensional drawings on request. The earthing switches are suitable for the normal operating conditions of the „minus 5 indoor class“.
4 Summary | EK6
12
17.5
24
95
125
Key to order code: Earthing switch version
Type designation
Earthing switch
E ·
·
–
·
–
·
·
–
·
–
·
With snap action mechanism
·
K ·
–
·
–
·
·
–
·
–
·
Design code
·
·
6
–
·
–
·
·
–
·
–
·
Mechanism on right
·
·
·
–
R –
·
·
–
·
–
·
Rated voltage 12 kV
·
·
·
–
·
–
12 ·
–
·
–
·
Rated short circuit making current 80 kA
·
·
·
–
·
–
·
08 –
·
–
·
Predominantly for panel type ZK8 (P types predominantly for panel type ZP)
·
·
·
–
·
–
·
·
–
Z –
·
Pole centres 150 mm
·
·
·
–
·
–
·
·
–
·
–
150
Complete type designation
E K 6
–
R –
Z –
150
12 08 –
EK6 | Key to order code 5
3
Structure and function
Earthing switches of series EK6 have three pairs of earthing blades which are located on the operating shaft and are freely movable. The pairs of earthing blades are electrically connected to each other by a short-circuiting bridge and to earth potential at the bearing brackets by two stranded copper conductors. Driver levers and toggle springs located between the bearing brackets are used to transmit the force during the switching process. Fixing the active part on a torsionally rigid switchgear panel wall or crossbeam provides it with the necessary stability. The earthing contacts designed to suit the relevant switch type are to be bolted to the conductor bars supported on suitable insulating parts, e.g. pintype insulators or current transformers, on the opposite side and parallel to each other, and the position adjusted until it conforms to that show in the dimensional drawings.
1
2
Figure 1: Example of the active part of an earthing switchmounted on a switchgear panel partition, shown in the open position. 1 2 3 4 5 6
7 8
Bearing bracket Toggle spring Short-circuiting bridge Pair of earthing blades Eathing conductor Bevel gear mechanism (not belonging to the earthing switch) Actuating shaft Driver lever
6
6 Structure and Function | EK6
7
8
The earthing switch has a snap action closing mechanism which functions independently of the rotation of the drive shaft. The switching speed and torque achieved in this process are independent of the actions of the operating mechanism. In the opening process, in contrast, the toggle springs have no effect on the speed of contact separation. A ring lever or suitable manual or motorized operating mechanism with the necessary torque for the type of switch and an operating angle 90° can be fitted for operation of the switch. Note: Always open earthing switches by turning until the stop is reached. The earthing switches can also be fitted with an auxiliary switch for annunciation purposes.
3
4
5
11
8
9
2
7
Figure 2: Example of an earthing switch mounted in a switchgear panel, shown in the closed position.
2 7 8 9 10 10.1 11
Toggle spring Actuating shaft Driver lever Setting ring Earthing contact Earthing tongue Current transformer
10
10.1
Figure 3: Live parts of an earthing switch with a rated short-circuit making current of 120 kA, mounted on a sheet steel partition.
EK6 | Structure and Function 7
4
Instalation
When installing earthing switches in switchgear panels, the following details must be taken into account if perfect switching functions etc. are to be achieved: • The active part of the earthing switch is supplied in the open position and with pretensioned toggle springs. • The earthing switch can be installed in any position. • Do not operate the switch without earthing contacts! • Install the active part and earthing contacts without stress or distortion and parallel to each other on a torsionally rigid and flat panel wall/crossbeam and conductor bar respectively. • Precisely maintain the spatial/dimensional position of the earthing contacts relative to the active part as shown in the dimensional drawing for the relevant switch type. • Only use insulated mountings with a cantilever strength equivalent to a cast resin pin type insulator to DIN 48136: – For switches to dimensional diagram GCEM 360524, sheets 1 and 2 and GCEM 700092, sheets 1, 2, 5, 6, 8 and 9: Form B, 12 kV or 24 kV, 7.5 kN – For switches to dimensional diagram GCEM 700059, sheet 1: Form C, 12 kV, 16 kN • Fit the operating mechanism. • The operating shaft can be moved after the two setting rings have been released. Observe the tightening torque of 4 Nm for the M6 threaded pins. • Adjust the motion sequence of the earthing blades in relation to the earthing contacts as follows: 1. Grease the contact areas. 2. Close the switch with the fixing bolts in the earthing contacts loosely tightened. 3. Check that the blade pairs are properly located on the contact tongues of the earthing contacts and adjust if necessary. 4. Tighten the fixing bolts and carry out a test switching operation. 5. Maximum permissible deviation between the central position of the earthing blades and the contact tongues of the earthing contacts: • ≤ 1 mm for switches to dimensional diagram GCEM 360524, sheets 1 and 2, and GCEM 700092, sheets 1, 2, 5, 6, 8 and 9 • ≤ 0.6 mm for switches to dimensional diagram GCEM 700059, sheet 1. Measuring Point: Clearance between the earthing blades and the contact tongues during opening. Take care when handling the switch!
8 Instalation | EK6
6. Irrespective of the routine testing of the relevant switchgear panels/switchboard to IEC 62271-200, the earthing switch is to be subjected to routine testing in accordance with IEC 62271-102, on completion of installation. • Check for unimpeded function of the high-speed switching system when the switch has been installed without stress or distortion. • Check the tightening torque for the M 12 hexagon nut on the short-circuiting bridge, possibly removing a pair of earthing blades to provide access. This torque is important for correct function! Rated tightening torque: – without lubricant: 86 Nm – with oil or grease lubricated: 40 Nm. • Bolt the copper earthing conductors to the bearing brackets and connect the other ends to the switchboard earthing bar. • Perform at least 20 mechanical opening and closing operations on the earthing switch after completion of installation. Auxiliary switches: • Auxiliary switches on the side wall of the switchgear panel: – 2 x 5 pole auxiliary switches: GCE 8282292R0101 (contact arrangement as per order) – Signalling of open and closed positions – Operation by rod mechanism (engages with M 12 threaded bar) • Auxiliary switches on the rear wall of the switchgear panel: – S1 + S2 (2 NCC + 2 NOC = 2 change-over): GCE 7169 272 R0108 – S1 + S2 + S3 (3 NCC + 3 NOC = 3 change-over): GCE 7169 272 R0107 – Signalling of the closed position only.
5
Maintenance
Closing of the switch several times under load conditions (maximum loading two closing operations at 100 % of the rated short-circuit making current) makes inspection and possibly mainten ance necessary. The electrical and mechanical functions of the switch must not be adversely affected, and only slight contact welding is permissible. The pairs of earthing blades and the earthing contacts should be replaced if necessary. Otherwise, it is advisable to carry out inspection and maintenance of the earthing switches at appropriate intervals together with the switchboard, particularly in exceptional operating conditions and/or under adverse environmental influences such as pollution and aggressive air: • Check whether the operating mechanism functions smoothly and easily. • Carry out general visual examination for the condition of mechanical fasteners, dirt, moisture and corrosion. • Remove any dust deposits on insulating parts with a dry, non-fraying cloth (do not use cleaning wool). • Regrease the mechanically movable parts and contacts (applying grease thinly) using Isoflex Topas NB 52 lubricant, ABB part number (ordering reference) GCE0007249P0100. • Take into account the details given in section 4 in as far as these are relevant to the work.
EK6 | Maintenance 9
,7
19
°
a
3
H
B
B
36
22
Md ON
GCE7169312R1101
EK6-R-1208-Z-150
150 424 300 247-20 48
210 Nm 110Nm 11
210 Nm 110Nm 12
Weight kg
EK6-R-1208-P-150 150 424 300 195-20 100 210 Nm 110Nm 11
Md OFF
GCE7169312R2101
210 544 420 247-20 58
f
EK6-1208-210
g
58
87
90
°
35,5
0
255 +- 1,5
S 13
15
20 10 40
38
E: GCE8684219P0101
265
) maximum projection of contact blades: 5 mm (rated dimensions: 3 mm)
+
Caution! Observe the notes on installation in section 4.
GCE7169312R0102
c
(195)
Type
a
50
See section 4 for the auxiliary switches fitted
225
Part number
p
L 9 x 19
25
B-B
29
4
17
90
L
ø5
96
g
65
R
E = Earthing contact, H = Auxiliary switch, L = Rating plate, S = Operating/Switching angle, W = Shaft section, C = ON, O = OFF,
A-A
96
c
p
25
50
25
10
90
87
58 35,5 °
0
250
40
+3 0
6
17
80
12
75
Dimensional drawing GCEM360524, Sheet 1
12 kV-Types
90O 90O
ø 13
ø 11
Earthing switch EK6
Operating angle: Switching angle:
60
26
30
E: GCE6186188P0101
Contact blade distance: 8 ± 0,3 mm Contact thickness: 10 mm Contact force: 734 N Contact spring force (cup springs): 313 N
E: GCE8384542P0180
ø 13
ø 15
C
S
15
4
17
W
A
48
p
25
5
*) *) 40
25
35 160
3 72 25
6 117
A
f
R
0 ø 30 - 0,1
29
10 40 26 17
10 Dimensionals drawing | EK6 275
6 Dimensionals drawing
96
L
a
ø5
3
115
H
Type
GCE7169312R0103 EK6-1208-275
Part number
a
c
g
f
Md OFF
Md ON
36
22 L 9 x 19
225
50 (195)
C
S
58
87
90
Weight kg
Caution! Observe the notes on installation in section 4.
°
0
15
B-B
35,5
– See dimensional drawing GCEM 360 524, sheet 1, for shaft profile – See section 4 for auxiliary switches fitted
275 674 550 195-20 100 210 Nm 110Nm 13
p
B
B
96
g
4
250
17
E = Earthing contact, H = Auxiliary switch, L = Rating plate, S = Operating/Switching angle, C = ON, O = OFF,
48
25
5
p
c
p
25
p
35 160
25
S +3 0
40
f
6
17
80
12
75
ø 13
ø 11
12 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
GCEM360524, Sheet 2
Dimensional drawing
90O 90O
Contact blade distance: 8 + 0,3 mm Contact thickness: 10 mm Contact force: 734 N Contact spring force (cup springs): 313 N
E: GCE6186188P0101
60
26
30
275
10 40 26 17
29
R
EK6 | Dimensionals drawing 11
L
ø5
a
3
c
H
B
B
k
EK6-1208-150
EK6-1208-210
GCE7169312R0114
GCE7169312R0115
a
c
g
210 544 420 175
150 424 300 160
p
1) including earthing contact (Weight 3 Pieces: 1,8 kg)
Type
Part number
96
50
75
f
36
22 L 9 x 19
(195)
220 Nm
Md OFF
50
100 220 Nm
75
k
225
87
°
35,5
0
S 262 +- 1,5
15 45 + 2
20
120 Nm
120 Nm
Md ON
13
13
Weight1) kg
Caution! Observe the notes on installation in section 4.
– See section 4 for the auxiliary switches fitted – See dimensional drawing GCEM 360 524, sheet 1, for shaft profile
C
S
58
90
B-B
4
17
E = Earthing switch, H = Auxiliary switch, L = Rating plate, Y = View direction for switch position S = Operating/Switching angle, C = ON, O = OFF,
48
96
25
5
g
29
Y
p
25
p
40
f
35 160
95 +- 4 73 +- 4
9
40
170
12 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
GCEM700092, Sheet 1
Dimensional drawing
90O 90O
Contact blade distance: 8 ± 0,3 mm Contact thickness: 9 mm Contact force: 739 N Contact spring force (cup springs): 720 N
262 +- 1,5
ø 13 / 13,5
E: GCE7003225P0101
32 68 32 20
12 Dimensionals drawing | EK6 R
L
a
ø5
c
3
115
H
EK6-1208-275
GCE7169312R0116
a
c
g
275 674 550 210
p
1) including earthing contact (Weight 3 Pieces: 1,8 kg)
Type
Part number 50
f
Y
Md ON
L 9 x 19
225
50 (195)
C
S
58
87
90
35,5
Weight 1) kg
Caution! Observe the notes on installation in section 4.
– See section 4 for the auxiliary switches fitted – See dimensional drawing GCEM 360 524, sheet 1, for the shaft profile
36
22
220 Nm 120 Nm 16
Md OFF
B
B
100
96
g
°
0
262 +- 1,5
S
45 + 2
20
262 +- 1,5
ø 13 / 13,5
E: GCE7003225P0101
12 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
9
40
GCEM700092, Sheet 2
Dimensional drawing
90O 90O
Contact blade distance: 8 ± 0,3 mm Contact thickness: 9 mm Contact force: 739 N Contact spring force (cup springs): 720 N
15
B-B
4
17
E = Earthing contact, H = Auxiliary switch, L = Rating plate, Y = View direction for switch position indicator S = Operating/Switching angle, C = ON, O = OFF,
48
96
25
5
p
p
25
p
40
f
35 160
95 +- 4 73 +- 4
32 68 32 20
29
R
EK6 | Dimensionals drawing 13
170
96
0 40 - 0,2
p
L
p
a
c 96
L 9 x 19
15
EK6-1212-275
EK6-1212-210
GCE7001732R0102
GCE7001732R0101
1) including earthing contact
Type
a
c
g
210 544 420 175
275 674 550 210
p
60
50
f
Y
100
100
k
B
B
k
25
22
C
210
35 160
58
94
90
°
35,5
50 (195)
300 Nm
Weight 1) kg 190 Nm 31
190 Nm 31
Md ON
Caution! Observe the notes on installation in sector 4.
0
262 +- 1,5
S
0
ø 13 38
I 20
Dimensional drawing GCEM700059, Sheet 1
12 kV-Types for ZS-Feeder
90O 90O
0 38,5 -0,6 mm 0 40 -0,2 mm 500 N
Earthing switch EK6
Operating angle: Switching angle:
Contact blade distance: Contact thickness: Contact force:
15
R2
ø 13
E: GCE7001716P0101
B - B
36
– See dimensional drawing GCEM 360 524, sheet 1, for shaft profile
36
300 Nm
Md OFF
96
g
50
262 +- 1,5
225
Part number
p
0
21
E = Earthing contact, I = Isolator, L = Rating plate, Y = View direction for switch position indicator (ZS1-Type), S = Operating/Switching angle, C = ON, O = OFF,
48
f
90°
92
80 170 20
14 Dimensionals drawing | EK6 R
L
ø5
a
3
c
H
Y
B
B
100
96
36
22 L 9 x 19
C
225
50 (195)
EK6-R-2406-Z-210
EK6-R-2406-P-210 210 544 420 190 -20 115 220 Nm 120 Nm 12
GCE7169312R2104
Weight 1) kg
EK6-2406-210
1) including earthing contact (Weight 3 Pieces: 1,8 kg)
210 544 420 258
210 544 420 47
Md ON
47
220 Nm 120 Nm 12
258 220 Nm 120 Nm 12
220 Nm 120 Nm 14
Md OFF
GCE7169312R1104
50
f
GCE7169312R0105
g
210 544 420 175
c
EK6-2406-210
a
GCE7169312R0117
p
Type
Part number
S
58
°
35,5
0
B-B
321 +- 1,5
S
15
45 + 2
20
SE
5
Caution! Observe the notes on installation in section 4.
– See dimensional drawing GCEM 360524, sheet 1, for shaft profile – See section 4 for auxiliary switches fitted.
87
90
3
23
E = Earthing contact, H = Auxiliary swithch, L = Rating plate, S = Operating/Switching angle, SE = Control electrode varies with panel design; X = View direction for switch position indicator, Y = view direction for switch position indicator, C = ON, O = OFF,
48
96
25
5
g
40
X
p
25
p
35 160
95 +- 4 73 +- 4
32
9
40
Dimensional drawing GCEM700092, Sheet 5
24 kV-Types
90O 90O
170
Earthing switch EK6
Operating angle: Switching angle:
Contact blade distance: 8 ± 0,3 mm Contact thickness: 9 mm Contact force: 353 N Contact spring force (cup springs): 376 N
321 +- 1,5
SE
ø 13 / 13,5
E: GCE7003225P0101
32 68 32 20
f
29
R
EK6 | Dimensionals drawing 15
96
L
a
ø5
c
3
H
B
B
100
96
36
22 L 9 x 19
EK6-2406-275
EK6-2406-275
GCE7169312R0118
GCE7169312M0106
Md OFF
Md ON
(195)
Weight 1) kg
220 Nm 120 Nm 16
f
220 Nm 120 Nm 14
g 50
c
275 674 550 120 -20 55
a
275 674 550 210
p
1) including earthing contact (Weight 3 Pieces: 1,8 kg)
Type
Part number
C
S
87
90
°
35,5
0
321 +- 1,5
40
50
S
15
45 + 2
20
Caution! Observe the notes on installation in Section 4.
– See section 4 for auxiliary switches fitted. – See dimensional drawing GCEM 360 524, sheet 1, for the shaft profile
225
58
29
115
Y
B-B
5
321 +- 1,5
24 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
9
40
ø 13 / 13,5
GCEM700092, Sheet 6
Dimensional drawing
90O 90O
mm mm N N
SE
Contact blade distance: 8 ± 0,3 Contact thickness: 9 Contact force: 353 Contact spring force (cup springs): 376
SE
E: GCE7003225P0101
32
X
g
3
23
E = Earthing switch, H = Auxiliary switch, L = Rating plate, S = Operating/Switching angle SE = Control electrode varies with panel design; X = View direction for switch position indicator, Y = View direction for switch position indicator, C = ON, O = OFF,
48
25
5
p
p
25
p
170
f
35 160
95 +- 4 73 +- 4
32 68 32 20
16 Dimensionals drawing | EK6 R
L
ø5
a
c
3
H
B
B
100
96
36
22 L 9 x 19
g
EK6 -2406-210
GCE7169312R0119
1) including earthing contact
Type
Part number
a
c
g
210 544 420 175
p 50
f
(195)
Md ON
Weight1) kg
225
50
220 Nm 120 Nm 14
Md OFF
87
35,5 °
0
321 +- 1,5
S
15
Caution! Observe the notes on installation in section 4.
– See dimensional drawing GCEM 360 524, sheet 1, for shaft profile – See section 4 for auxiliary switches fitted.
C
S
58
B-B
40
90
3
23
E = Earthing contact, H = Auxiliary switch, L = Rating plate, S = Operating/Switching angle, SE = Control electrode varies with panel design; Y = View direction for switch position indicator, C = ON, O = OFF,
48
96
25
5
Y
p
25
p
5
SE
SE
32
24 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
ø 13 / 13,5
222
mm mm N N
E GCE7003225P0102
9
40
GCEM700092, Sheet 8
Dimensional drawing
90O 90O
Contact blade distance: 8 ± 0,3 Contact thickness: 9 Contact force: 353 Contact spring force (cup springs): 376
45 + 2
E
125 +- 4
f
35 160
20 32 120 32
29
R
EK6 | Dimensionals drawing 17
L
a
ø5
c
3
H
B
B
100
96
36
22
EK6-2406-275
GCE7169312R0121
1) including earthing contact
Type
Part number
a
c
g
275 674 550 210
p 50
f
Md ON
225
50
C
87
35,5 °
0
321 +- 1,5
S
Caution! Observe the notes on installation in section 4.
– See dimensional drawing GCEM 360 524, sheet 1, for shaft profile – See section 4 for auxiliary switches fitted
(195)
Weight1) kg
220 Nm 120 Nm 16
Md OFF
L 9 x 19
S
58
B-B
40
90
29
115
Y
g
3
23
E = Earthing contact, H = Auxiliary plate, L = Rating plate, S = Operating/Switching angle, SE = Control electrode varies with panel design; Y = View direction for switch position indicator, C = ON, O = OFF
48
96
25
5
p
p
25
p
15
5 125 +- 4
SE
147 +- 4
SE
24 kV-Types
Earthing switch EK6
Operating angle: Switching angle:
mm mm N N
9
40
222 ø 13 / 13,5
GCEM700092, Sheet 9
Dimensional drawing
90O 90O
Contact blade distance: 8 ± 0,3 Contact thickness: 9 Contact force: 353 Contact spring force (cup springs): 376
45 + 2
E
E: GCE7003225P0102
32
f
35 160
20 32 120 32
18 Dimensionals drawing | EK6 R
EK6 | Dimensionals drawing 19
http://www.abb.com
The data and ilustrations in this catalogue are not binding. We reserve the right to make changes of the content, in the course of technical development of the product.
1VLM000047 Rev.-, en 2009.04.06
ABB s.r.o. Videnska 117 619 00 Brno, Czech Republic E-mail: [email protected] Tel.: +420 547 152 413 Fax: +420 547 152 190
