Huge source of knowledge about switchgear
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- Aug- 2019 -23 AugustVacuum Switchgear
Some of Vacuum interrupter(VI) failure reasons
VI reaches its wear limits: The VI has a set of soft copper alloy contacts…
Read More » - 22 AugustHV AC Switchgear
Energisation of capacitor banks by switchgears
This switching usually associated with transient voltages and currents. Those transients are: inrush currents. overvoltages…
Read More » - 21 AugustHV AC Switchgear
Mechanical operations counter in switchgears
Operations counters are typically factory-installed devices that count the number of mechanical operations of a…
Read More » - 20 AugustSwitchgear Testing
Trending method in switchgear control and auxiliary circuits visual check
Photo from Pars switch company 63KV circuit breaker catalog The trending method is verifying if…
Read More » - 19 AugustHigh Voltage Circuit Breaker
Vibration signal application in switchgear
A vibration signal will arise during the open & close process of the CB. It…
Read More » - 18 AugustVacuum Switchgear
Vacuum gauges application in vacuum circuit breaker
The method involves incorporating a vacuum gauge directly into the vacuuminterrupter, so that the pressure…
Read More » - 17 AugustSwitchgear Automation
Digital Fault Recorders (DFR) monitoring method for switchgears
DFR record system current and voltage oscillograms during every circuit breaker switching operation for a…
Read More » - 16 AugustHigh Voltage Circuit Breaker
Transient Electromagnetic Emissions(TEE) measurement methods in switchgears
During a CB switching operation, TEE are generated by the electric discharges in each interrupter.…
Read More » - 15 AugustSectionalizer
Sectionalizers specifications in grid
Control Unit: Electrical control giving the necessary timing function for the operation of the sectionalizer.…
Read More » - 14 AugustLoad Break
Air break medium voltage load break switches
Photo from power switching component book by Kaveh Niayesh , Magne Runde Compared to medium…
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