Digital Motor Protection Relay (GDR-M02) User's Manual (V1.00)
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KyongBo Electric Co.,Ltd
Table of Contents
1. General Features ················································································································· 10
2. Technical Data ······················································································································ 12
2.1 Voltage, Current Input ································································································· 12
2.2 Rated Control Source Voltage ···················································································· 12
2.3 Rated Frequency ··········································································································· 12
2.4 Case ································································································································ 12
2.5 Time OverCurrent Element ························································································· 13
2.6 Instantaneous OverCurrent Element ············································································ 13
2.7 Time Ground OverCurrent Element ··········································································· 14
2.8 Instantaneous Ground OverCurrent Element ······························································ 14
2.9 OverVoltage Element ··································································································· 15
2.10 UnderVoltage Element ································································································· 15
2.11 Reverse Phase Element ································································································ 15
2.12 Negative-Sequence Current Element ··········································································· 16
2.13 Output Contacts ············································································································ 16
2.14 Insulation Test ··············································································································· 17
2.15 Mechanical Test ············································································································ 18
2.16 Noise Test ····················································································································· 18
2.17 Temperature, Humidity Test ························································································ 19
2.18 EMI : ElectroMagnetic Interference ··········································································· 19
2.19 Other Operating Condition ·························································································· 19
3. Protection Characteristics ····································································································· 20
3.1 OverCurrent Function ··································································································· 20
3.2 Ground OverCurrent Function ····················································································· 23
3.3 OverVoltage Function ··································································································· 24
3.4 UnderVoltage Function ································································································· 25
3.5 Negative-Sequence Current Function ·········································································· 27
3.6 Reverse Phase Function ······························································································· 28
