Huge source of knowledge about switchgear
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- Mar- 2019 -28 MarchVacuum Switchgear
Arc shield duties in vacuum interrupter
Shield is an essential component of the vacuum interrupters design. It has multiple purposes: To…
Read More » - 27 MarchHV DC Switchgear
High voltage HVDC switches in grid
Figure shows a typical Single Line Diagram for HVDC transmission scheme utilizing DC side switchgear.…
Read More » - 26 MarchGenerator Circuit Breaker
Heat pipe in generator circuit breaker (GCB)
An important issue for a generator circuit breaker is its current carrying capability.The rated currents…
Read More » - 25 MarchVacuum Switchgear
Current interrupting process in a vacuum circuit breakers
Vacuum interrupter arcs show two different modes of either diffuse or constricted arcs. The arc…
Read More » - 24 MarchVacuum Switchgear
Magnetic mechanism operation for medium voltage vacuum circuit breakers
The concept certainly predates Lindsay’s 1965 Patent that matches the magnetic mechanism to the vacuum…
Read More » - 23 MarchSwitchgear Testing
Three phase high power synthetic current injection test methods for circuit breakers
This test just apply to 3 pole operation circuit breakers. As Fig these circuits use…
Read More » - 22 MarchGas Insulated Switchgear
Minor inspection list for gas insulated switchgear GIS
This inspection can be performed every 5–10 years on GIS components but the inspection can…
Read More » - 21 MarchHigh Voltage Circuit Breaker
Circuit breakers coil current profile analysis
The conversion of the electric command signal to a mechanical signal, typically to move the…
Read More » - 20 MarchSwitchgear Testing
Lightning impulse voltage withstand test for circuit breakers
Lightning impulse voltage (LIWL) tests and switching impulse voltage tests are conducted for the evaluation…
Read More » - 19 MarchMV AC Switchgear
Closing and tripping sequence of medium voltage auto recloser
In this figure we can see the working of the auto-recloser when a permanent fault…
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