Reviews

We thank SKB EP, LLC for effective and mutually beneficial cooperation lasted for more than 10 years. SKB EP, LLC has established itself as a reliable partner and manufacturer of instruments and complete sets during the time of cooperation.

I would like to inform you that the production department of the Vologda Electric Networks uses such instruments manufactured by SKB EP, LLC as PKV/M7, MIKO-1 and manipulating rod. 

These instruments are used for diagnostic of the high-voltage circuit breakers both produced in our country (VMT-110, MKP-110, VT-35, S-35) and abroad (LTB-145), and for measuring contact resistance of various switching devices. During the time of use, these instruments have proven themselves from the best side. Use of the PKV/M7 allowed realising non-demountable detection of the circuit breakers internal defects.

The instrument is very simple and easy to operate, it allows to control the main characteristics of high-voltage circuit breakers. During repair, the main malfunction that were detected by the instrument was time difference between the contacts closing. When analyzing the speed characteristics, speed dips were detected, that indicated the presence of jamming, mashing in the mechanism and necessity of repairing.

Before this instrument was gotten, all the characteristics of the circuit breakers had to be checked with mandatory disassembly, that increased the repair time. Use of the PKV/M7 instrument with a manipulating rod can significantly reduce time for checking of the characteristics of both column and tank circuit breakers of 110 kV, and also eliminates the need for scaffolding or the use of lifting mechanism to conduct these works.

  Y.P. Tsiberny
Chief Engineer

Nowadays MIKO-1 and two PKV / M7 instruments are operated in the laboratory of high-voltage tests, measurements and diagnostic in Arzamas high-voltage RES of the Nizhnovznergo branch of IDGC of Centre an Volga Region.

A full package of documents included in the instruments complete set made it possible to register them in our organization without any problems.

During almost daily MIKO-1 and PKV/M7 operation since December 2013, no serious shortcomings and low-quality components have been identified.

A.V.Shchelikov
Chief engineer

With the help of MIKO - 1 micro-ohmmeter staff measures direct current of contact joints. The main advantages of this instrument are: compactness and low weight, ease of use and user-friendly interface, autonomy and mobility, which is very convenient when working away from power supply. There were no failures in operation.

A high-voltage circuit breaker analyzer PKV/M7 is used for monitoring the condition and take readings of 6, 35, 110 kV high-voltage circuit breakers. The main advantages of this instrument are: ease of operation and convenience, reliability, high measurement accuracy, small dimensions. The instruments are equipped with a set of high-quality measuring cables and clamps.

We wish SKB EP, LLC employees successfully develop and implementate modern control and diagnostic devices for electrical equipment.

Lapygin V.P.
Chief Engineer

Kamchatskenergo, PJSC has been operating instruments manufactured by SKB EP, LLC: PKV/M5, PKV/M7, MIKO-1, MIKO-2.3, MIKO-21 since 2005.

The advantages of PKV/M5, PKV/ M7 are: the ease of operation, an ability to determine a necessary number of controlled parameters with the required accuracy, the identification of defects without disassembling a circuit breaker, an opportunity to view the results of measurements and graphs of dynamic characteristics, a choice between local and remote triggering and usage of instruments on almost all types of switching equipment. I would also like to note the compact size of the instruments and the presence of a protected case, which is important when transporting and working at a substation.

MIKO-1, MIKO-2.3, MIKO-21 instruments are used to measure the transient resistance of contact connections of switching devices with a voltage of 6-10-35-110-220 kV. The advantages of these instruments include light weight and dimensions, a durable case, sufficient current for carrying out necessary measurements, autonomous power supply (MIKO-1), the ease of use.

Basing on our own operational experience, Kamchatskenergo, PJSC recommends these instruments to all energy organizations and enterprises.

V.V. Skvortsov
The first deputy of General Director – chief engineer

Currently, two PKV/M7 instruments have been operated since 2019 in the electrical department of ENGINEERING CONSTRUCTION SERVICE, LLC, in Bratsk branch. Oil circuit breakers MG-10, MG-110, MG-20, MGU-020 are analyzed by these SKB EP`s instruments. The instruments are quite convenient to use, easy to transport and carry in hands, also they are compact and have a relatively low weight. It is possible to accurately determine circuit breaker time and speed characteristics of closing and opening, pressing and moving parts travel. A defect while closing MG-110 has revealed by PKV/M7 (speed change, braking). The usage of PKV/M7 has great advantages in comparison with old methods of circuit breakers diagnostic. We can confidently recommend using of PKV/M7 instrument to other organizations for electrical equipment diagnostic. It is worth noticing "TRADE-IN" promotion that can provide 15-20% discount for new instruments.

D.M.Marakanov
Head of the branch