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Number of Channels

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Mlmlzx

Electrical
Joined
Feb 3, 2021
Messages
57
Location
NP
Dear sirs:

Under construction substation, we are having relay testing using RED670 and REL670, and I am curious to know
1. How impedance diagram is drawn? Our is a two channel system. How is resistance and time of operation of relay realized?
2. From local control panel, we have to operate drives of GIS. It appears that channels ( like channel 1, 2, 3 for three cores of current transformer.

Regards
 
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