Industrial microohmmeter MIKO-1

Certificates

  • Safety Test Certificate IEC 61010-1:2001
  • Russian State Register Certificates
  • Declaration of Conformity of the Customs Union
  • Russian Register of Innovative Products
  • Recommended for use in JSC Russian Railways electric installations

Resistance measurement in the range 0 ÷ 20,000 μΩ

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Auto resistance range selection

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Test current up to 50A

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Test current of MIKO-1 flows stably and enough time

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Stable operation in the presence of powerful industrial frequency interference

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Self-contained power supply

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Test cable set with ergonomic design

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Simplicity and portability

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Operation in all weather conditions

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Industrial microhmmeter MIKO-1 is designed to measure the transient electrical resistance to dire­ct current:

  • contacts of high-voltage and auto­matic circuit breakers;
  • contactors, breakers, connect­ors;
  • bolted, welded and soldered connections of conductors and buses;
  • rail bonds, wheels of cars, etc.

User participation in the measurement process is minimal. The me­asurement process is started by pressing one button, without any additional settings.

To obtain reliable values, it is recommended to make measurements at sufficiently high currents through the transient resistance, which is set out, for example, in IEC 56 standards (I≥50A).

Measurements are made using a hi­ghly stable DC current. This all­ows measuring the electrical resis­tance of circuits containing current transformers, which are usually fitted on high-voltage dead tank circuit breakers.

MIKO-1 is designed for operation in harsh electromagnetic e­nvironment of power stations and sub­stations, with measuring channels of the de­vice allowing to suppress electromagnetic interference of industrial frequency.

Integrated battery in MIKO-1 provides its portability and has a capacity sufficient to per­form to 100 measurements. It is charged from an internal charger powered by the mains.

The device has a small weight (3.6 kg) and small dimensions; a special bag provid­es its convenient movement, which allo­ws you to ascent with it on any circuit breaker.

If you have to carry out diagnostics in difficult weather conditions, you can be sure of the accuracy of the results. The MIKO-1 microohmmeter is guaranteed to operate at temperatures from -15 to + 40 ° C.

Specifications Value
Resistance range 1 μΩ ÷ 0.02 Ω
Minimum grade value 0.1 μΩ
Accuracy ±(1+0.01*Rх) μΩ
Measuring current strength up to 50 A
Number of digits in the measurement result 6
Power supply (integrated battery) Lead A506/3.5 S1
Battery charging time < 4 h
Internal memory -
Number of measurements with a fully charged battery 20 ÷ 50
PC connection -
Display Monochrome, alphanumeric
Power consumption <20 W
Power supply (mains voltage) ~ 100-242V, 50Hz
Dimensions 250х80х210 mm
Device weight 3.6 kg
Ingress protection IP20
Temperature range when working with the device from -15°C to +40°C
Interface and user's manual language English
Calibration period, year 1
Warranty period, year 1

Standard complete set

Photo Item, Index Application
MIKO-1 measuring unit
  • MIKO-1 measuring unit
  • SKB025.10.00.000
  • MIKO-1 measuring unit
  • SKB025.10.00.000

Instrument and covering documents: Calibration Certificate, User's Manual, and a Log Book.

K01 microohmmeter cable
  • K01 microohmmeter cable
  • SKB018.00.00.000
  • K01 microohmmeter cable
  • SKB018.00.00.000

Current wires end with "crocodile plus clamp" with a pharynx up to 50 mm. Length 2.1 m + 3.5 m.

Mains cable
  • Mains cable
  • SKB018.09.00.000
  • Mains cable
  • SKB018.09.00.000

For charging device connection when placing the instrument on the input of the high-voltage circuit breaker. 2 meters long.

Shunt
  • Shunt
  • Shunt

Type: 75ShSM M3 (75ШСМ М3). For functional check in microohmmeter and milliohmmeter modes.

Safety devices
  • Safety devices
  • Safety devices

Type: VP2B-1V-2A (ВП2Б-1В-2А) (2 pcs). For the power source protection.

Tool bag
  • Tool bag
  • SKB118.01.00.000
  • Tool bag
  • SKB118.01.00.000

Convenient and wearproof bag for transportation of the device, documentation and accessories.

Additional complete set (on order)

Photo Item, Index Application
K02 measuring cable with spring loaded needle-type contacts
  • K02 measuring cable with spring loaded needle-type contacts
  • СКБ018.13.00.000
  • K02 measuring cable with spring loaded needle-type contacts
  • СКБ018.13.00.000

It is used when it is impossible to connect to the object with a K01 cable, for example, when monitoring the resistances of busbars and connecting buses. Measuring cable 1.8 x 0.8 m with spring loaded needle-type contacts.

Potential pin contact (black and red)
  • Potential pin contact (black and red)
  • SKB023.21.00.000/-01
  • Potential pin contact (black and red)
  • SKB023.21.00.000/-01

Potential pin contact inserte into the socket in the crocodile handle for connection to the input stud. I recommend for use with a K01 cable.

Potential spring-loaded contact( black and red)
  • Potential spring-loaded contact( black and red)
  • SKB023.22.00.000/-01
  • Potential spring-loaded contact( black and red)
  • SKB023.22.00.000/-01

Potential pin contact inserte into the socket in the crocodile handle for connection to the input stud. I recommend for use with a K01 cable.

Accumulator А506/35S
  • Accumulator А506/35S
  • Accumulator А506/35S

Reference inductor adaptor
  • Reference inductor adaptor
  • SKB023.12.00.000
  • Reference inductor adaptor
  • SKB023.12.00.000

For testing laboratories: inspection / calibration of the instrument.

Manipulating rod
  • Manipulating rod
  • SKB110.41.00.000
    SKB110.41.00.000-01
    SKB110.41.00.000-02
  • Manipulating rod
  • SKB110.41.00.000
    SKB110.41.00.000-01
    SKB110.41.00.000-02

The rod is designed to ensure convenient connection to contacts of a transformer inputs.

The rod is completed with a clamp with current and potential contacts connected by wires with the measurement platform. Test cables are connected to the measurement platform from the ground.

Circuit breaker analizers PKV/M6N and microohmmeter MIKO-1
  • Open Original

    JSC PE Elektroapparat

    For more than ten years, JSC PE Elektroapparat has been operating instruments manufactured by SKB EP. These devices are used both in production and in the process of servicing measuring transformers, switchgear, high-voltage switches, disconnectors.

    PKV/M7, MIKO-1, MIKO-2.3 instruments are an integral attribute in the work of chief engineers of the warranty service.

    The devices of the MIKO group are used to measure the transition resistance of the main electrical circuit of the remote control switches. These tools allow timely, accurate identification of developing defects, reduce the risk of accidents and failures and violations in the operation of high-voltage equipment. Their use allowed to increase the control and quality of diagnostics during commissioning and repair work.

    The PKV/M7 high-voltage circuit breaker monitoring instrument has established itself as the best domestic measuring instrument for monitoring the main parameters of high-voltage circuit breakers during operation.

    The main advantages of PKV/M7, MIKO-1, MIKO-2.3 instruments are:

    • measurement accuracy, simplicity and information content of the measurement process control; 
    • mobility, autonomous power supply from the built-in battery, small dimensions and weight, convenient carrying bag, which allows you to use it in the field; 
    • devices meet the stated requirements
    All this allows you to perform the required number of measurements quickly and accurately with the least effort.

    Considering the above, we confidently recommend these devices for test-services and organizations involved in the production, commissioning, repair and operation of high-voltage equipment.

  • Open Original

    RUE "Mogilevenergo" "Mogilev TPP-2"

    The MIKO-1 device manufactured by SKB Electrotechnical Instrument Making LLC has been used in the Mogilevenergo branch of Mogilevskaya TPP-2 since 2017 to measure the transition resistance of contacts of high-voltage switches, disconnectors and other electrical equipment.

    The main advantages of the MIKO-1 device are: ease of use, information content, measurement accuracy, reliability, compactness and autonomy.

    The claimed characteristics and description of the device are true. During the operation of the instrument, remarks on its use did not arise.

    The MIKO-1 instrument is convenient in operation and can be recommended to enterprises engaged in the repair and operation of high-voltage electrical equipment.

  • Open Original

    Alstroy, LLC

    This instrument has high accuracy when measuring DC resistance of the contacts of the main circuits of high-voltage circuit breakers.

    MIKO-1 has been used by our installers for about 10 years, during this time no breakdowns have occurred, which indicates its reliability and quality.

    Also advantages include its compactness and ease of transportation. The built-in battery allows you to use it without connecting additional power, which is especially convenient when checking circuit breakers on high voltage line block, reclosers or RVNO-6 (10) kV.

  • Open Original

    NETO, LCC

    In November 2019, our company, Switching, Electronic, Transformation Systems LLC, acquired the MIKO-1 Microohmmeter manufactured by SKB Electrotechnical Instrumentation LLC for measuring the resistance of the main circuit of high-voltage circuit breakers, contact connections of withdrawable elements and bolted connections of high-voltage cells.

    It is worth emphasizing the compactness of the device, ease of use, measurement accuracy, a simple and intuitive interface, as well as the ability to connect the device to a computer, which greatly facilitates data processing. Thanks to the built-in rechargeable battery in the instrument, we easily use it in the field.

    Over the entire period of using MIKO-1, we were able to identify defects at the initial stages of development, thereby preventing possible equipment failures and, as a result, emergency situations.

    We recommend this instrument for organizations operating high-voltage equipment

  • Open Original

    GUP Moscow Metropoliten

    Our Company has been using your MIKO-1 instrument for several years. It is used for measuring the transient resistance of VMG-133 II, VEM-10E, VVE-10, VVTE-10 and other high-voltage circuit breakers. The range of measurements is from 10 to 100 mkOhm.

    The instrument is rather convenient and simple in operation and is preferred by people of our laboratory.

    Its advantage is compactness, power supply from the battery, high precision and reliability of readings, simplicity of control.

  • Open Original

    OJSC PPGHO Company of Electric and Thermal Networks

    MIKO-1 and PKV/M6 instruments have been used by our Company for about a year. We measure characteristics and diagnose VMP-10, VMPE-10, VMT-220, VMK-35, and U-110 circuit breakers.

    Use of PKV/M6 instrument simplified many operations, such as control of phases closing simultaneousness, control of contacts squeeze, analysis of "Open-Close" cycle.

    We recommend instruments manufactured by SKB EP to companies dealing with diagnosis of high-voltage circuit breakers.

  • Open Original

    NETO, LLC - Electric Equipment Adjustment

    The MIKO-1 Instrument has been used by the Company for equipment adjustment since November 2008. With the help of MIKO-1 we measured transient resistance of BNA-10, BNA-SEShch-10 circuit breakers, of vacuum circuit breakers Tavrida Electric, of high-voltage breakers 6, 10, and 110 kV, of welded and joined connections of 0.4, and 6/10kV busbars.

    The instrument is rather convenient and simple in operation, it does not require power supply from the network, which is rather convenient when measurements are made at newly built facilities.

    Battery capacity is rather high as it allows up to 40-50 measurements without recharging at a temperature of down to -20ºС. Connecting wires remain elastic even at low temperatures.

  • Open Original

    Branch of OJSC Interregional Distribution Company of North-West KOLENERGO

    branch of OJSC MRSK of North-West uses instruments manufactured by SKB EP, namely PKV/U2, PKV/U3.1, and MIKO-1. Types of circuit-breakers controlled by the Instruments include: VMT-110, VMT-150, MKP-110, VVSh-150, VT-35, and VM-35.

    Specialists of our Company operating those instruments note their benefits:

    • Instruments are robust and simple in operation;
    • Software for the instruments is user-friendly;
    • The data obtained can be interpreted and compared in detail by overlapping the graphs obtained on the available ones.

  • Open Original

    CJSC Specialized Erection and Adjustment Board #70

    MIKO-1 microohmmeter has been used by our Company for commissioning operations since 2006. Your instrument is rather convenient in use as it is powered from an in-built battery; it has small size and weight; there is a convenient bag for its transportation and operation. These merits of the instrument allow us to use MIKO-1 in tough conditions of switchgears and for measurement on disconnection switches, circuit breakers and switchgear busbars. Control of the process is rather simple and informative, accuracy of measurements is high, capacity of the battery is sufficient for a large number of measurements.

    Previously our Company used other instruments during commissioning. As against its analogues, MIKO-1 is a leader of Russian instrumentation; it has comparatively low price, it is reliable, convenient in operation, transportable and is completed with appropriate measurement cables. I should like to note that customers can order cables of different length from the Catalogue. I can recommend the MIKO-1 instrument to all the companies dealing with adjustment, maintenance and operation of electric equipment in the networks, at power plants (thermal, hydro, etc.), and by electrical laboratories of industrial enterprises.

  • Open Original

    GOMEL ELECTRIC NETWORKS

    During overhauls and scheduled maintenances of equipment at 35-300 kV substation of Gomel Electric Networks the following instruments manufactured by SKB EP were used: PKV/M5, PKV/M7 and MIKO-1.

    With the help of PKV/M5 and PKV/M7 instruments we measure time and speed characteristics of 10 kV circuit breakers (VMG-10, VMP-10, VMPP-10, VMPE-10, VK-10), 35 kV circuit-breakers (VM-35, C-35, VT-35, VMD-35), of 110 kV circuit breakers (MKP-110, VMT-110), MMO-110), and of 220 kV circuit-breakers (U-220).

    With the help MIKO-1 instruments we measure transient resistances of contacts of the above circuit breakers, of air circuit breakers 110, 330 kV, of vacuum circuit breakers 10 kV, of SF6 circuit breakers 35, 110, 330 kV, of breaker contacts 35-330 kV, and of OD-110 separators.

    The PKV/M5, PKV/M7, and MIKO-1 instruments are convenient in use during work at substations.

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