Huge source of knowledge about switchgear
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- Jul- 2019 -16 JulySwitchgear Testing
Optimisation SF6 handling procedures during on-site testing and commissioning for GIS
Gas compartments prefilled with SF6 at a pressure slightly above the atmospheric pressure for transportation.…
Read More » - 15 JulyMV AC Switchgear
Arcing faults in switchgears
Arcing faults are commonly caused by the following: Foreign tools dropped into equipment that may…
Read More » - 14 JulyLV Switchgear
Typical mechanical interlocks role for draw out circuit breakers in LV switchgears according to IEEE standard
➤To prevent moving the circuit breaker to or from the connected position when the circuit…
Read More » - 13 JulySwitchgear Automation
IEC61850 model for GIS with Non Conventional Instrument Transformers (NCIT)
The IEC 61850 8-1 standard applies to station bus. The IEC 61850 9-2 LE standard…
Read More » - 12 JulySwitchgear Testing
Test equipments for AIS high voltage disconnector switch insulators cracks and life
Acoustic emission: can be successfully used to detect dangerous cracks in support insulators on site,…
Read More » - 11 JulyGas Insulated Switchgear
General Rules for GIS Grounding and bonding
In most GIS there are two grounding grids: The station grounding grid, which is similar…
Read More » - 10 JulyVacuum Switchgear
Vacuum interrupter role in transformer on load tap changer(OLTC)
The use of a vacuum interrupter as a tap changer inside oil-filled transformers has been…
Read More » - 9 JulyMV AC Switchgear
Operation sequence for main bus grounding in MV GIS switchgear according to IEEE
Sequence for grounding of main bus section A: It is assumed that the tie CB…
Read More » - 8 JulyHigh Voltage Disconnector Switch
Bus transfer current switching define and classification for high voltage disconnector switch according to IEC
Photo from Switching phenomena for EHV and UHV Equipment CIGRE BROCHURE 570(page 124) The rated…
Read More » - 7 JulyHV AC Switchgear
High voltage(>52kv) switchgear bushing type test items according to IEC standard
dry or wet power-frequency voltage withstand test. long duration power-frequency voltage withstand test (ACLD).(apply for…
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