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JIS C 4609:1990 (R2016)

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JIS C 4609:1990 (R2016)

Directional ground relay set for 6.6 kV consumer

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This Japanese Industrial Standard specifies the directional ground relay set which consists of a zero-phase-sequence current transformer, zero-phase-sequence reference input device, and a directional ground relay (this relay is referred to as 'relay' hereafter), which is installed at the power receiving point of a consumer of 6.6 kV of such a system that the one-line ground-fault current is less than 30 A.

Author JSA
Editor JSA
Document type Standard
Format File
Confirmation date 2016-10-20
ICS 29.120.50 : Fuses and other overcurrent protection devices
Number of pages 24
Year 1990
Document history
Country Japan
Keyword JIS 4609;4609;JIS C 4609-1990