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Articles
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Peculiarities of vacuum BB/TEL circuit breakers control
Unlike conventional oil, vacuum or SF6 circuit breakers, HV vacuum circuit breakers of BB/TEL type consist of two main functional modules: A switch module and a control unit.
21 july 2016 -
Modern MIKO microohmmeters to measure transient resistance
The market of instrumentation currently offers a wide range of instruments to measure transient contact resistance. These instruments differ in operation principles, metrology characteristics, automatization degree, dimensions, weight, and price.
30 may 2016 -
Testing the condition of selector contacts in LTC devices of RS-3, RS-4, and RS-9 type using the MIKO-8 milliohmmeter
Power transformer operability depends on the proper operation of switched-over contacts and bolted current-carrying connections.
8 february 2016 -
The PKR-2M testing at OJSC ZAVOD RETO Company
Early in December the SKB EP specialists together with specialists of OJSC ZAVOD RETO conducted multi-disciplinary tests of new software of the PKR-2M instrument for the transformer LTC diagnosis. Tests were performed on the maintained transformer with LTC device of RS-9 type.
9 december 2015 -
Field of application of micromillikiloohmmeter MIKO-2.3
MIKO-2.3 is a portable mini-laboratory allowing performing of all tasks connected with resistance measurement in electrical equipment as this instrument operates in four modes: microohmmeter, milliohmmeter, kiloohmmeter and thermometer.
7 september 2015 -
Field tests of new instruments at Irkutsk Hydroelectric Power Station
At the end of July field tests of a new microhmmeter MIKO-21 were carried out on Irkutsk Hydroelectric Power Station High-Voltage Electric Equipment Site.
6 august 2015 -
Testing of PKR-2M in OJSHC "ELEKTROZAVOD"
At the end of June, tests of the new control instrument for PKR-2М OLTCs VACUTAP MR on TRDTSN-200 MBA 220/11 kV power transformer with OLTC have been carried out.
30 june 2015 -
Detection of faults in the transformer LTS devices. Enhanced DRM method
For revealing the causes of LTC failures and for automation of the diagnosis the SKB EP Company entered the instrumentation market with the PKR-2 and PKR-2M instruments for the transformer LTS testing. Their main function is recording the oscillograms of contators operation and the circular diagram across all the phases at a time.
20 march 2015 -
Detection of faults in the reactor devices of LTC by recording circular diagrams
According to codes, LPC tests shall mandatorily include tests of the operation sequence of switching device contactor versus the angle of shaft drive turn, in other words, they require circular diagrams recording.
4 february 2015 -
Selection of a universal analyzer for the transformers, electric machines and switching equipment
The MIKO-2.3, a universal lightweight instrument, is capable to replace at competitive price the whole set of special-purpose instruments with the same range of functions.
20 october 2014