Instrument Transformer, Div of GE 10WP, 189 Data Sheet

GE

Energy Connections

Models 10WP & 189

Current Transformers
Wound Primary

Application

Ammeters and wattmeters.

Frequency

50-400 Hz.

Insulation Level

0.6 kV, BIL 10 kV full wave.

Continuous Thermal
Current Rating Factor

1.33A at 30°C amb.,

1.0A at 55°C amb

Approximate weight:
Model 10WP - 1.5 lbs.
Model 189 - 0.75 lbs

Model 10WP

Model 189

Model 10WP Wound Primary

The Model 10WP is a low ratio wound primary current
transformer, suitable for primary currents up to 40
amperes. The table lists the most common current ratings.
Primary terminals for the Model 10WP are: for ratios of
25:5 and below, No. 8-32 brass studs with one flatwasher
and regular nut, for ratios of 30:5 and above, 1/4-20 brass
studs with one flatwasher, lockers and regular nut.

Model 189 Wound Primary

The Model 189 is a low ratio wound primary current transformer,
suitable for primary current up to 100 amperes. The table lists the
most common current ratings. Primary terminals for the Model
189 for ratios of 30:5 and below are No. 10-32 brass screws
with one lockwasher (Dimension A=3.28), for ratios 40:5 and
above, 3/8-16 brass studs with one lockasher and regular nut
(Dimension A=4.10).

Grid-AIS-L4-ITI_Model_10WP_189-1219-2017_05-EN. © Copyright 2017. General Electric Company
and Instrument Transformers LLC reserve the right to change specifications of described products at
any time without notice and without obligation to notify any person of such changes.