GE
Grid Solutions
Model JCT-AC 600V
Indoor Current Transformer
10 kV BIL With Integral Primary Bar
Application
Designed for indoor service; suitable for operating meters and instruments, on both
single-phase two-wire circuits and polyphase circuits.
Weight
(Approximate)
Transformer, without base 7.0 lbs
Low base, add 0.25 lbs
High (EEI) base, add 1.0 lbs
Reference Drawings
Outline 0121C42808
Baseplate Models Available, Consult Factory for Catalog Number
Insulation Level
0.6 kV; BIL 10 kV full wave
Frequency
50-60 Hz
Secondary terminals are tin plated brass, compression type with a
0.275” diameter cross-hole for wiring and a 1/4-28 clamp screw. A
The terminal cover is made of a clear plastic. Provision is made for
Model JCT-AC
Dimensions in inches
Construction and Insulation
The core and coil are enclosed in a case molded with GE Valox
thermoplastic polyester resin. This tough material has excellent
electrical and mechanical properties over a wide temperature
range, has low water absorption and is resistant to 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 evenly distributed around the core
for maximum accuracy and resistance to stray fields from
adjacent conductors.
Terminals
shorting device is provided and interlocked to the terminal cover.
sealing the cover.
Polarity
The H1 polarity mark is molded into the case, above the win- dow
at one end. The X1 polarity mark is also molded into the case
adjacent to the secondary terminal. Both H1 and X1 are also
marked with white dots.
Primary Bars
Formed from copper tube for 600 & 800 Amp ratings, they are tinplated. They are non-removable and have a potential connector
that can be attached above or below the bar at either end.
Nameplate
The nameplate is laser engraved aluminum. It is attached to the
top of the unit and has provision for attaching the user’s
identifying tag. The nominal current rating is marked on both
faces of the unit in large numerals.
Mounting
The transformer can be mounted in any position and may be
suspended from the bus-bar or cable. It has provision for
attaching two optional bases. Low bases are made from stainless
steel. The high base increases the transformer height by 2 inches.
Maintenance
These transformers require no maintenance, other than
occasional cleaning, if installed where air contamination is severe.
Grid-AIS-L4-ITI_Model_JCT_AC-1406-2017_08-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.
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