Type BYZ-O Current Transformer

bolt holes facilitate mounting. Secondary Terminals. Secondary terminals are 10-32 stud-type with hardware. 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 ...
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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.

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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.

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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