Practical training by SKB EP for the Mongolian electric company

A practical educational training was organized on May, 25 for the employees of Baganur Eastern South Electric Grid on the base of Irkustkenergo scientific research center. The topic of the training was "Diagnostic and control of OLTC transformers by SKB EP instruments".

Traditionally, the first stage of the event was theoretical. Our engineer showed the key method of defects detection of OLTC transformers and represented the new elements and last developments of in-place check-mode by SKB EP instruments.

The second stage was practical. The participants worked with MIKO-9 milliohm meter and PKR-2M control instrument of OLTC transformers.


Both instruments have in-place check-mode (DRM test) testing dynamic transient resistance in OLTC which is the only method allowing to make effective diagnostic of OLTC technical condition without opening the tank cover.

SKB EP specialist showed the order of connection and the process of control by in-place and dismount modes, fault-free/faulty results of the resistor contactor diagnostic as well as types of defects to be detected by measuring the electrical resistance of the selector contacts.

The seminar participants were able to evaluate the convenience of measurement and estimate time saving by using in-place check mode (DRM-test).

Despite the fact that the training was being translated by an interpreter, all the experts were asking questions and participated in the discussion, took the initiative in carrying out practical work, and shared their experience with each other.


If you wish to study our instruments at practical classes we are happy to offer you our trainings. The plan of the class is drawn up on the individual basis, taking into account instruments used on the grid and objects to be tested. You may request a seminar on our website using a form.

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