Synchronism Check Relay settings

voltage

Hz

V Ph angle

Phase Sequence

of both source must be same :D

Yes: the original manufacturer of the switchgear will have produced a user manual for it. If the manual cannot be found for some reason, then make a telephone call to the manufacturer and obtain a replacement.

you have to give 2 inputs to the relay, 1- incomer line voltage, 2- busvoltage, using this relay will check the line to bus voltage and give the closing signal to breaker. if you need sychro check for buscoupler closing, give bus-a voltage and bus-b voltage to the relay.

at what value should i set the maximum phase angle difference between the two voltage inputs?

What was the outcome of that telephone call?

for that you have to refer the technical manual/installation guide of the relay

The angle setting is based on the system.It varies from DG sets to Turbo sets and Grid. Generally it will be 5-10 deg.

You have to set permissible voltage variation between the sources and this may be 1%

hello sir, i posted a question but still nobody given a proper answer i hope you can help me , it was my question,

hai all,

There is a coding system for switchgears and control panels, like for 11kv panels- +k01, +k02.. and for 132kv panels E01, E02..., 33kv - H01, 02...,11kv control panels it will be WR01, WR02... for lv panels using NN01, 02... etc, can any one tell what is the base of this coding system, is it related IEC or something, please let me where i can find the meaning of this coding and procedure for each system. let me know what will be the coding for 3.3kv panels.

with thanks

Dear sir Thanks for referring. I have not come across any standard for coding the type of switchgear panels based on voltage. May be the consultant would have given such names for easy identification and working. If it is convenient you can also follow same system of coding