Articles

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
Instruments for transformer LTC diagnosis

According to statistical data, 40% of emergencies at transformers are due to LTC (load tap changer) failures.
11 november 2013

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