Instrument Transformer, Div of GE JAS-0C Data Sheet

GE

Grid Solutions

Model JAS-0C

Indoor Current Transformer 600 V
10 kV BIL, 150-2,000 A, Window Diameter 4.00”

Application

Designed for indoor service. Suitable for operating meters, relays and control devices, on
circuits not exceeding 600 V line-to-line. It is intended for use in switchboards and in
switchgear equipment. It may be used on higher voltage circuits with an insulated
conductor. Refer to the Applications Information section of catalog GEP-9186.

Regulatory Agency Approvals

UL Recognized File E93779

Continuous Thermal Current
Rating Factor

30 °C Ambient 1.33
55 °C Ambient 1.00

Weight

Transformer (approximate) 9 lbs

Reference Drawings

Outline 0121C33703

Insulation Level

0.6 kV; BIL 10 kV full wave.

Frequency

50-60 Hz

mechanical properties over a wide temperature range, and is resistant to

evenly distributed around the core for maximum accuracy and resistance

JAS-0C Dimensions

Construction and Insulation

The core and coil are enclosed in a case molded with GE Valox
thermoplastic polyester resin. This material has excellent electrical and

oil and a variety of chemicals.

Core and Coils

The core is made from high quality grain oriented silicon steel, annealed
under rigidly controlled factory conditions. The secondary winding is
made of heavy enameled copper wire. The secondary windings are

to stray fields from adjacent conductors.

Terminals

Secondary terminals are No. 8-32 brass studs with one flatwasher, one
lockwasher and a regular nut. Because the transformer is used primarily
in enclosed switchgear compartments, which cannot be opened while
the transformer is energized, a secondary shorting device and terminal
cover are not provided.

Polarity

Primary and secondary polarity marks H1 and X1 are molded
into the case.

Primary Conductor

A bus or insulated cable forms the primary winding.

Nameplates

The nameplate is a polyester label attached to the face of the
transformer.

Mounting

The transformer can be mounted in any position.

Maintenance

These transformers require no maintenance, other than occasional cleaning,
if installed where air contamination is severe.

Grid-AIS-L4-ITI_Model_JAS_0C-1394-2017_07-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.