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- Jun- 2019 -8 JuneGenerator Circuit Breaker
Generator circuit breaker (GCB) important special requirements
High continuous current levels: GCB s must be able to carry high continuous current levels…
Read More » - 7 JuneGenerator Circuit Breaker
Verification of time quantities in commissioning test for Generator circuit breaker (GCB) according to IEC/IEEE
After a Generator circuit breaker has been installed commissioning tests shall be performed. The purpose…
Read More » - 6 JuneFuse
MV fuse voltage and current interrupting curves
Figure shows typical current(lower) & voltage(upper) waveforms when a fuse interrupts a current. When the…
Read More » - 5 JuneHigh Voltage Circuit Breaker
Principle of controlled switching (CS) in circuit breaker
CS is a method for eliminating harmful transients via time controlled switching operations. Closing or…
Read More » - 4 JuneHV AC Switchgear
Two important factor in high voltage switchgear insulator according to IEC
Minimum distance between sheds: In left figure factor “c” is the minimum distance between adjacent…
Read More » - 3 JuneGas Insulated Switchgear
Disconnector with damping resistor(DR) in GIS
The damping of VFTO by integration of a damping resistor is a well proven technology.…
Read More » - 2 JuneHigh Voltage Circuit Breaker
Effect of heavy snow for high voltage switchgear in substations
Snow drifts can cause a serious threat to site access and inside the substation if…
Read More » - 1 JuneSwitchgear Testing
SF6 portable devices
Photo acoustic infrared detectors are based on the pressure waves emitted by the SF6 molecules…
Read More » - May- 2019 -31 MayGenerator Circuit Breaker
Hybrid synthetic direct test method for generator circuit breaker (GCB)
In synthetic test circuits, normally applied for high-voltage circuit-breaker testing, current is supplied by a…
Read More » - 30 MayGas Switchgear
Recommended routine test for MV GIS switchgear according to IEEE
Routine tests are a suitable means in order to verify the guaranteed quality and the…
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