Instrument Transformer, Div of GE PCM Data Sheet

GE

Grid Solutions

Model PCM

AC Current Transducer
0-300 Amps ac to produce 4-20 mA dc

Operating Range

Input 0-5 thru 300 Amps ac.
Output: 4-20 mA dc.

Frequency

50-400 Hz.

Ambient Temperature Range

Effect on accuracy ± 0.04 %/ oC
Operating: -30
Storage: -55

oC to +60 oC

oC to +85 oC

Insulation level

600 Volts, 10 kV BIL full wave

Continuous Thermal Current
Rating Factor

1.33 at 30 oC ambient.*
* 6.00 times rated current for 30 seconds.

Accuracy

± 0.05 % F.S. maximum.

1 % maximum to peak ripple on dc output.
peak ripple on output.

• Output load (RL): 0-600 ohms.

• Maximum output: 30 mA dc.

• Supply Voltage Range: 24V dc + 10 %.

• Response Time: <200ms (10 %-90 %)

• Repeatability: <0.1 %

• PCM 5- 200 terminal are brass screws
No. 10-32 with one flatwasher,
lockwasher and regular nut.

• PCM 300 terminal are brass studs No. 8­ 32 with one flatwasher, lockwasher and
nut.

Approximate weight 1.5 lbs

PCM 5 - 200

PCM 5 - 300

REGULATORY AGENCY APPROVALS

CANADIANC

The PCM transducer accurately converts a sinusoidal ac input to a proportional dc current. The high performance integrated circuit
amplifiers achieve a contestant current output, insensitive to a variable impedance load. This allows the PCM to be easily applied to
remote instrumentation, motor control, and energy management installations. The input circuit is average responding. The output require
24V dc to be applied between the (+) terminal and ground. The output load may be inserted in either the (-) line for a negative ground
system. Power supply polarity is critical for correct operation, but an accidental reverse polarity connection will not damage the output.
Several transducers can be operated from a single power supply with the only limitation being the maximum current available from the
supply itself.

(Example: a one Amp supply will support 50 transducers operating at 20mA dc output.) The maximum output is limited to 30mA dc to
prevent damage to external components.

CAUTION:

Some consideration should be given to the ripple content of the external power supply. Any ripple introduced by the power supply will
appear at the load resistor.

C

CC

Model PCM AC Current Transducer

For load currents which are greater than 600A the PCL-5 may be used in
conjunction with separate higher ratio C.T.’s having a rated 5A secondary.

2