Kyongbo Electronics GDR-C01 - Insulation Test

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 sistance
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.