/

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/Branch of Public Joint-Stock CompanyAIRCRAFT HOLDING COMPANY 'SUKHOY'

Komsomolsk-on-Amur Aircraft Manufacturing PlantNamed after Yu.A. Gagarin(Branch ofPAO Sukhoy Company,

KIAAZ named after Yu.A.GagarinSovetskaya str., Komsomolsk-on-Amur, Khabarovsk Kray, Russia

T el.: 8(4217) 52-62-00, 22-82-25F ax: 8 (421 7 ) 52-64- 5 l, 22-9 8-5 |E-mail: infor@knaapo.com

Dtd. 29.04.20 | 5, #93 -4/ | 17 6 5

To ref. 370. dtd. 24.04.2015

ATTN: Ekaterinina T.O., Head of Sales and marketing Department

Re: Reference on MIKO-7 microohmmeter

MIKO-7 instrument has been used by our electrical laboratory of the Chief Engineer's Department of

Komsomolsk-on-Amur Aircraft Manufacturing Plant named after Yu.A. Gagarin since 2013. The

microohmmeter is used for measuring DC resistance of transformer windings, electric motors, and for

control oftransient resistances of6-1 1OkV oil circuit breakers contacts.

The instrument is simple in use; the basic version of software has a user-friendly interface. When making

measurements on the oil circuit breakers MKP35 and MKPll0 the length of wires allows instrumenta

operation without its raising on the measured equipment, which is an advantage as compared to

previously used instruments. Moreover, clamps of measurement cables with G-clamps allow their

installation using one hand only.

As compared to a classical method using an ampere-voltmeter for measuring the DC resistance in the

circuits with inductance, MIKO-7 saves time previously used for the circuit assembly-disassembly, for

the process of measurement until the steady-state values of current and voltage are achieved, and for

conversion ofthe data obtained.

Lack of an in-built power source

accumulator.

is a demerit of the instrument, though it can be operated from an auto

Chief Power Eneineer /Signature/ A.A.Nikitin

CERTIFICATE OF TRANSLATION. '

This is:to certify that the foregoing translation from Russian into English was made by theundersigned translator Galliamova Vera of the City of Irkutsk, Russia who is conversant with boththese languages, and that, to the best of my knowledge and understanding, it is a true and completerendition of the corresponding original document.

"Association of translation and interpreters" Plc.

[Seal: The Russian Federation; Irkutsk; Public limited company; "Association of translation andinterpreters"l Primary state registration number 1073808003961; TIN 38081625201

Address: str., 7, Irkutsk, 664011 ) 588-122

ity of Irkutsk, this 4th day of

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