Type BYZ-O Current Transformer
Type BYZ-O Current Transformer 600 Volt, 10 kV BIL, Indoor Product Bulletin 1VAP428612-DB
Product Features • 600 Volt Indoor • 10 kV BIL • 25 - 60 Hertz • Primary Amperes: 50 and 100 • Mechanical Rating: 180 x rated current • Thermal Rating: 100 x rated current, one second
Application The BYZ-O zero-sequence indoor current transformer is used for ground fault detection. It is designed for zero-sequence overcurrent relaying schemes and for mounting in the cable compartment of metalclad switchgear. A phase imbalance in the outgoing cables, which pass through the transformer window, produces a secondary current in the BYZ-O. Construction Features The oval-shaped ring-type core is insulated and toroidally wound with a fully distributed secondary winding. The complete unit is cast in polyurethane for added insulation and protection. Four 0.56" corner bolt holes facilitate mounting.
• Continuous Current Rating Factor: 1.33 @ 30°C Ambient 1.0 @ 55°C Ambient
Secondary Terminals Secondary terminals are 10-32 stud-type with hardware.
• UL Recognized Component; File No. E96461
Curves Saturation, overcurrent, ratio correction factor, and phase-angle curves are available upon request. Test Reports IEEE test reports are stored electronically and can be e-mailed in various formats at the time of shipment.
UL Recognized Component
Standards This unit meets all applicable IEEE and NEMA standards and is a UL Recognized Component.
-2-
Unit Dimensions
MOUNTING HOLES Ø.56 [14] 4-TOAL
.75 [19]
NAMEPLATE
1.75 [44] X1
X2
16.62 [422]
5.00 [127]
14.12 [359]
H1
6.00 [152]
1.22 [31]
.19-32 THREADS
17.00 [432]
5.31 [135]
R2.50 [63]
8.12 [206]
1.25 [32]
3.00 [76] 6.00 [152]
5.31 [135] 10.62 [270]
Approximate weight is 110 lbs.
-3-
Note: Metric dimensions are displayed in [mm].
Selection Guide Primary Ampere Rating
IEEE Relaying Accuracy
Style Number
50
C20
7882A98G01
100
C50
7882A98G02
1VAP428612-DB August 2006 Rev. A (replaces 42-861A) © Copyright 2006 ABB. All rights reserved.
Additional styles available upon request. Contact your ABB Sales Representative or call +1-252-827-3212 for more information.
ABB Inc. 3022 NC 43 North Pinetops, NC 27864 Tel: +1-252-827-3212 www.abb.com/mediumvoltage
Product Features • 600 Volt Indoor • 10 kV BIL • 25 - 60 Hertz • Primary Amperes: 50 and 100 • Mechanical Rating: 180 x rated current • Thermal Rating: 100 x rated current, one second
Application The BYZ-O zero-sequence indoor current transformer is used for ground fault detection. It is designed for zero-sequence overcurrent relaying schemes and for mounting in the cable compartment of metalclad switchgear. A phase imbalance in the outgoing cables, which pass through the transformer window, produces a secondary current in the BYZ-O. Construction Features The oval-shaped ring-type core is insulated and toroidally wound with a fully distributed secondary winding. The complete unit is cast in polyurethane for added insulation and protection. Four 0.56" corner bolt holes facilitate mounting.
• Continuous Current Rating Factor: 1.33 @ 30°C Ambient 1.0 @ 55°C Ambient
Secondary Terminals Secondary terminals are 10-32 stud-type with hardware.
• UL Recognized Component; File No. E96461
Curves Saturation, overcurrent, ratio correction factor, and phase-angle curves are available upon request. Test Reports IEEE test reports are stored electronically and can be e-mailed in various formats at the time of shipment.
UL Recognized Component
Standards This unit meets all applicable IEEE and NEMA standards and is a UL Recognized Component.
-2-
Unit Dimensions
MOUNTING HOLES Ø.56 [14] 4-TOAL
.75 [19]
NAMEPLATE
1.75 [44] X1
X2
16.62 [422]
5.00 [127]
14.12 [359]
H1
6.00 [152]
1.22 [31]
.19-32 THREADS
17.00 [432]
5.31 [135]
R2.50 [63]
8.12 [206]
1.25 [32]
3.00 [76] 6.00 [152]
5.31 [135] 10.62 [270]
Approximate weight is 110 lbs.
-3-
Note: Metric dimensions are displayed in [mm].
Selection Guide Primary Ampere Rating
IEEE Relaying Accuracy
Style Number
50
C20
7882A98G01
100
C50
7882A98G02
1VAP428612-DB August 2006 Rev. A (replaces 42-861A) © Copyright 2006 ABB. All rights reserved.
Additional styles available upon request. Contact your ABB Sales Representative or call +1-252-827-3212 for more information.
ABB Inc. 3022 NC 43 North Pinetops, NC 27864 Tel: +1-252-827-3212 www.abb.com/mediumvoltage
