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
Applications Notes
Model PCM AC Current Transducer
NOTE: Output current of each PCM is limited to 30mA max. From this the required by using capacity of the D.C. supply can be calculated
by multiplying the total number of PCM’s times 0.03A to find the maximum requirement output capacity of the supply. It is possible to
achieve an output close to full scale increase output resolution by using multiple turns through the window of the PCM. The following
equation would apply:
3
Dimensions
Do not apply around or remove
from Hazardous LIVE conductors.
Cleaning:
Remove dust with a damp cloth. Do not spray with any chemicals.
Caution:
Proper safety precautions must be followed during installation by
a trained electrician. Never install or remove while bus is energized.
Protective equipment must be used if hazardous parts in the
installation where measurement is tobe carried out could be
accessible.
Grid-AIS-L4-ITI_Model_PCM-1558-2017_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.
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