Reviews

Nowadays, KEGOC, JSC uses 28 instruments produced by SKB EP, LLC to check electrical equipment parameters and find defects (PKV - 15 pcs., MIKO - 10 pcs., PKR - 2 pcs., PUV- 1 pcs.).

PKV/M7 instruments are actively used to measure speed and time parameters of high-voltage circuit breakers of all types and voltage classes. PKV/M7 software makes it possible to create and maintain an archive of measurements, including the ability to enter factory test data, consequently, that allows you to conduct a primary analysis of the equipment diagnostic results directly at the workplace. 

MIKO instruments have been used for ten years. Besides simplicity in operation and small dimensions, they have proven themselves to be precise and reliable tools in measuring contact resistance to electric current. During operation, it is used on almost all equipment with a voltage above 10 kV. The instrument is convenient to operate, easy to handle and has an autonomous power supply.

PKR-2M instruments have been used since 2019. The use of this instrument allows you to significantly reduce the time spent on the repair of the autotransformer and spent resources, because the switch is analyzed without opening, draining the oil and disassembly of the contactor. The presented information is very convenient as well as the storage of measurement results in graphical or tabular form in the instrument memory.

Based on operational experience, KEGOC, JSC recommends instruments manufactured by SKB EP, LLC to organizations working in the electrical equipment maintenance and adjustment.

B. Arystanov
Director of Operations Department

1. MIKO-10 has been in operation for 2 years, 3 units.

2. It is used for testing and adjusting equipment: hardware clamps, 10kV switches, disconnectors, MKP-110, U-110, U-220, RNDZ-110, RNDZ-220, SONK-12-31.5, ATDCTN-200000/220/110/10-75U1 busbars, VEB-220P-50/2500, VEB-110II-40/2500UHL1, RPDO-2-110/1600UHL1, RPD-2-220/1250UHL1, fuses.

3. The device is convenient and compact.

4. Memory for several dozen measurements, mounting and wire quality, long battery life, fast charging, simplicity, readability of the display, auto measurement.

5. Defect in TVK was identified in the working cooling power unit AT-1, AT-2. With the instrument, it was found that the defect is not in the fuse mountings, but in the fuse itself; the connection of the fusible link is of poor quality, the transition resistance of the connections, the hardware clamps of the high-voltage inputs AT, the contacts VM-10 kV.

6. High reliability, large memory, good wire connection allows for faster and higher quality measurements and, if necessary, for detection of areas with poor contact resistance.

7. We recommend other organizations to use the MIKO-10.

A.V. Irshinsky.
Chief Metrology Specialist

I inform you that MIKO-2.3 instrument (serial number 160) has been used by Sibir-Polymetals, JSC. It has been used since December 2015 to measure contact resistances of VGT-110 and VEB-110 circuit breakers contacts, to measure windings resistance of transformers and motors on DC. The instrument is small, has a low weight, that is very convenient during operation. We consider the instrument best functions to be the ability to measure contact resistances of circuit breakers contacts with a high current and a short battery charge time. Based on the experience of MIKO-2.3 operation, we can recommend other organizations to use it.

A.A. Kolesnikov
Best wishes, Chief Engineer

MIKO-10 is quite easy to use. It has a convenient menu and a built-in autonomous power supply unit.

Good specifications, digital display of the instrument allow measurements to be carried out with high precision.

The main advantages of PKV/M7 are: high build quality; high functionality for circuit breakers characteristics control; detection of defects without disassembly of circuit breakers; built-in control unit for electromagnets of a circuit breaker drive; convenient control panel and display; functionality to control many parameters in one test cycle.

A.M.Isaev
Acting First Deputy Director

During the operation since November 2020, no malfunctions have been detected. As a whole, the instrument has shown high reliability in the harsh working conditions of the Metro and is characterized by high quality, modern technical solutions and functionality.

The main advantages of the instrument include: high precision of measurements, a large range of measured current values, high autonomy, a big bright informative screen, a shockproof housing, a useful carrying handle and a convenient calibration period.

P.V.Dankov
Deputy Head