Huge source of knowledge about switchgear
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- Jun- 2019 -20 JuneSwitchgear Testing
Seismic qualification report content using testing for high voltage switchgears according to IEC
Type of circuit breaker : Configuration considered, position of the circuit breaker Load cases considered,…
Read More » - 19 JuneHV AC Switchgear
High voltage compact switchgear assemblies according to IEC standard
Compact switchgear consist either of AIS or of a Combination of AIS and GIS called…
Read More » - 18 JuneMV AC Switchgear
Switchgears earthing in prefabricated substation acc to IEC
A main earthing conductor system shall be provided to connect to the earth all metallic…
Read More » - 17 JuneMV AC Switchgear
Electromagnetic forces in three-phase faults for medium voltage switchgear
When a fault occurs in a three phase system,the forces acting upon all three conductors…
Read More » - 16 JuneMV AC Switchgear
Normal condition for indoor switchgear according to IEC
the ambient air temperature does not exceed 40 °C and its average value, measured over…
Read More » - 15 JuneVacuum Switchgear
The Self Actuating vacuum interrupter (SAVI) prototype
The SAVI version shown in Figure is identical to the classic vacuum interrupter as far…
Read More » - 14 JuneFault Current Limiter
Medium voltage Is Limiter equipment definition
In the Is limiter, a current limiting fuse is placed in parallel with a solid…
Read More » - 13 JuneMV AC Switchgear
IEC recommendation precautions list that may be taken by switchgear users and operators
Switchgears, can comprise some potential risks, some examples are: The enclosures, if any, may be…
Read More » - 12 JuneHV AC Switchgear
Asymmetrical current basic definition
Asymmetrical current results from: A short-circuit in the system initiated by an external event or…
Read More » - 11 JuneMV AC Switchgear
Direct started asynchronous MV motor switching by mv circuit breaker characters acc to IEC
Starting current: high current(I =6…7 × motor rated current). low power factor(cosϕ≈0,1…0,2). infrequent operation. due…
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