GE Multilin 350 - Current Transformer Model 143; Application, Ratings, and Catalog Numbers; Metering Classes and Specifications

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Section 2
Manufactured to meet the requirements of ANSI/IEEE C57.13.
Classified by U.L. in accordance with IEC 44-1
REGULATORY AGENCY APPROVALS
Current Transformer
Current Transformer
Model 143
Window Diameter 7.31”
APPLICATION:
Relaying and metering.
FREQUENCY:
50-400 Hz.
INSULATION LEVEL:
600 Volts, 10 kV BIL full wave.
Terminals are brass screws No. 10-32 with one
flatwasher and lockwasher.
Order mounting bracket kit 0221B00775
separately.
Multi-ratios available on request.
Approximate weight 60 lbs.
CATALOG
NUMBER
CURRENT
RATIO
RELAY
CLASS
ANSI METERING CLASS AT 60HZ
SECONDARY
WINDING
RESISTANCE
(OHMS @ 75
o
C)
CONTINUOUS
THERMAL
RATING FACTOR
BO.1 BO.2 BO.5 BO.9 B1.8
@ 30
o
C @ 55
o
C
143—500 50:5 C20 4.8 4.8 — — — 0.014 2.0 2.0
143—750 75:5 C20 2.4 2.4 — — — 0.042 2.0 2.0
143—101 100:5 C20 1.2 2.4 4.8 4.8 — 0.056 2.0 2.0
143—151 150:5 * C50 0.6 0.6 1.2 2.4 4.8 0.121 2.0 2.0
143—201 200:5 * C50 0.3 0.3 0.6 1.2 2.4 0.161 2.0 2.0
143—251 250:5 * C50 0.3 0.3 0.6 1.2 2.4 0.175 2.0 2.0
143—301 300:5 * C100 0.3 0.3 0.3 0.6 1.2 0.241 2.0 2.0
143—401 400:5 * C100 0.3 0.3 0.3 0.3 0.6 0.322 2.0 2.0
143—501 500:5 * C100 0.3 0.3 0.3 0.6 0.6 0.441 2.0 2.0
143—601 600:5 * C200 0.3 0.3 0.3 0.3 0.3 0.530 2.0 1.5
143—751 750:5 * C200 0.3 0.3 0.3 0.3 0.3 0.662 2.0 1.5
143—801 800:5 * C200 0.3 0.3 0.3 0.3 0.3 0.706 2.0 1.5
143—102 1000:5 * C200 0.3 0.3 0.3 0.3 0.3 0.883 1.5 1.33
143—122 1200:5 * C400 0.3 0.3 0.3 0.3 0.3 1.059 1.5 1.0
143—152 1500:5 * C400 0.3 0.3 0.3 0.3 0.3 1.324 1.5 1.0
143—162 1600:5 * C400 0.3 0.3 0.3 0.3 0.3 1.413 1.33 1.0
143—202 2000:5 * C400 0.3 0.3 0.3 0.3 0.3 1.678 1.33 1.0
143—252 2500:5 * C400 0.3 0.3 0.3 0.3 0.3 2.097 1.0 0.8
143—302 3000:5 * C800 0.3 0.3 0.3 0.3 0.3 2.516 1.0 0.8
143—322 3200:5 * C800 0.3 0.3 0.3 0.3 0.3 2.684 1.0 0.8
143—352 3500:5 * C800 0.3 0.3 0.3 0.3 0.3 2.936 1.0 0.8
143—402 4000:5 * C800 0.3 0.3 0.3 0.3 0.3 3.355 1.0 0.6
143—502 5000:5 * C800 0.3 0.3 0.3 0.3 0.3 3.983 1.0 0.6
143—602 6000:5 * C800 0.3 0.3 0.3 0.3 0.3 4.780 0.8 0.6
Approved for revenue metering by Industry Canada No. AE-0642
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