GFL631T-3 INSTRUMENT TRANSFORMER, GFL631T-3 Datasheet - Page 33

• Manufacturer Part Number: GFL631T-3
• Description: GROUND FAULT CURENT
• Manufacturer: INSTRUMENT TRANSFORMER

Specifications of GFL631T-3

• Accuracy: 15%
• Current Measuring Range Ac: 30A To 360A

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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 f ind 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:
APPLICATION #1
APPLICATION #2
APPLICATION #3
EXAMPLE:
Application #2
Application #3
Application #1
EXAMPLE
Example
A PCM 5 Is used with two turns and is monitoring a 2A load.
If I
Calculating
Rated Input
Rated Input
Where:
o
= 16.8 mA then I
CT Primary Rating (when monitoring a CT)
PCL Primary Rating (when monitoring direct)
I
I
l
in = Rated input X
in = = ac Amps measured
o
= mA dc out of PCL
Applications Notes
Application
I
in
in = Rated input Amps
=
2
5
No. of Turns
(
X
l
o - 4
16
(
)
16.8 - 4
16
X
(
l
)
o - 4
16
= 2 Amps
)
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