Hi,
Anyone familar with synchronous motor out-of-step protection relay GTM7111.
This relay has the following settings:
"S" setting which varies from 20% to 80% of Sq root(3)xInxV.
"Time delay" setting of 0.1 to 0.5sec.
Need to understand the concept of the PQ diagram.
Does anyone has articles...
It has been our practise to ground both ends of the shields for 6.6kV motor feeders (i.e ground the shield on the controller or switchgear end as well as on the motor end). Most motor manufacturers will also recommend to ground both ends.
Does anyone know the reasons why we need to ground both...
Hi,
Anyone familar with SKM captor program version 5.
I have a SKM file which contains the single line diagram with relay setting nicely drawn for 5 substations.
One of the substation was recently re-vamped and the single line diagram was drawn separated from the existing file.
Anyone know...
Hello to electrical man,
I have a 1.2MW (6.3kV) motor which was re-wound last year (Oct05).
The winding was shorted again this year (Aug06) in less than ONE year after re-wound.
The shorted location is just a little dot near the winding overhung.
This motor did not show sign of overheating and...
