Digital OverVoltage Relay (GDR-C01) User's Manual V1.00
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Kyongbo Electronics Co., Ltd.
2.7 Insulation Test
Ins ul ati o n
Re s i s tanc e
DC 500V
Electric Circuit to
Ground
10MΩ
IEC60255-5
Between Electric
Circuits
5MΩ
Between Electric
Circuit Connections
Commercial
Frequency
Withstand Voltage
50/60Hz,
1min
Electric Circuit Bundle
to Ground
2kV
IEC60255-5
Between Electric
Circuits
Between Connection
Circuit Contacts
1kV
Impulse
Withstand
Voltage
1.2/50μs,
3 times
each for
positive/neg
ative
polarity
Electric Circuit Bundle
to Ground
5kV
IEC60255-5
Between Transformer
Circuits
Between Transformer
Control Circuits
Between Control
Circuits
3kV
Between Tranformer
Circuit Contacts
Between Control
Power Circuit Contacts
【
Table 2.6
】
Insulation
Caution) AUX POWER and 485 Communication Circuits enclose surge protection
circuit inside the relay, so do not test insulation resistance test and withstand
voltage test.
