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 Power Equipment 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

    "Amur ES" of the JV "Central ES" branch of JSC "DRSK"

    Branch of JSC "DRSK" "Amur ES" of the JV "Central ES" informs that the devices MIKO-1, MIKO-2.3, PKV/M7 supplied by your company and operated in our organization comply with the requirements presented to them.  The equipment and functionality of the instruments correspond to the previously stated, and also provide reliable equipment diagnostics.

    MIKO-1 and MIKO-2.3 are actively used by teams of groups and substation services for measuring the transient resistance of the contacts of high-voltage switches, disconnectors, separators and other electrical equipment of switchgears.
    The control instrument for high-voltage circuit breakers PKV/M7 have proven their worth when characterizing high-voltage oil circuit breakers, vacuum and gas-insulated circuit breakers.

    PKV/M7 and MIKO devices have several advantages:

    • accurate and informative;
    • equipped with the necessary range of documentation‚ wires, adapters and devices;
    • reliability of fastening contacts;
    • simple and reliable;
    • mobile and compact.
    All these amenities allow you to perform the required number of measurements quickly and with minimal labor costs.

    The presence of built-in batteries on MIKO insruments allows you to make measurements in the field and not depend on the availability of the mains.

    We express our gratitude for your quality products, and look forward to further cooperation.

  • Open Original

    Elektrosetservice UNEG branch of East Specialized Production Base, JSC

    Elektrosetservice UNEG branch of East Specialized Production Base, JSC informs that the MIKO-1 devices (2012 onwards), PKV/M7 (2009 onwards) in use manufactured by your enterprise comply with the requirements for them.

    The MIKO-1 instrument is used to measure the transition resistance of the contact connections of switching devices of 6-500 kV, high-voltage switches and power transformers. The instrument is convenient to use, has a low weight and dimensions, as well as the ability to work both from the network and from the battery. For example, in the field, there is no need to organize the power supply of the device from the network, and when the battery is discharged, it is possible to connect the mains power and continue the measurement, without waiting for the battery to fully charge.

    The control device for high-voltage circuit breakers PKV/M7 is used to control the characteristics of oil, air and SF6 circuit breakers. During operation, the device has established itself as a convenient, reliable and safe to use. The main advantage of the device is the ability to control a large number of measured characteristics of the circuit breaker, view the received measurements on the screen, ability of choosing between local and remote type of start-up, moreover, you can use it on all types of switching equipment, and the instrument has compact size.

    Instruments manufactured by SKB EP LLC have proved themselves on the positive side and can be recommended to enterprises engaged in the repair and maintenance of 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

    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

    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

    CJSC OKTYABRSKAYA NETWORK

    We are grateful to you for delivery of the instruments manufactured by your Company. The instruments proved to be rather reliable and convenient in use.

    Our company uses the MIKO-7 and MIKO-1 instruments. The instruments are used for scheduled maintenances, for measuring the winding resistance of transformers, of transient resistances of busbar couplings, and for other conductors.

    The instruments are rather convenient and functional. In my opinion, they are the best ones in this class of instruments.

    With the help of these instruments we managed to detect faults in transformers (poor LTC contacts in some positions of leads). It is difficult to assess the elimination of such faults in money terms or in savings of man-hours as our main objective is continuous power supply to consumers, safety of personnel and consumers.

    I recommend these instruments to all the companies interested.

  • Open Original

    OJSC Branch of FAR EASTERN POWER DISTRIBUTION COMPANY South-Yakut Electric Networks

    The PKV/M7 and MIKO-1 instruments have been used in the Company (YuYaES Brach) since 2008. All the units of the branch are currently equipped with those instruments. They are used for measuring the parameters of equipment of different types and of different voltage class.

    The instruments are rather simple and convenient in operation, they are mobile, their assembly is of high quality, and results of measurements have high precision.

    The PKV/M7 allows control of all the main characteristics of a circuit breaker. Availability of local and remote control expands the sphere of the instrument application. A convenient control panel and use of clamps of different types exclude personnel’s mistakes during instrument connection.

    Use of the MIKO-1 raised the quality of contacts resistance measurements and quality of maintenances. The main advantages of the MIKO-1 are: independent power supply from an in-built battery; small size and weight; a convenient bag for transportation and work with the instrument; simple and informative control over measurements; availability of a display; high accuracy of measurements, and sufficient capacity of a battery for a large number of measurements.

    The instruments meet all the necessary requirements. Modern PKV/M7 and MIKO-1 instruments can be recommended to all the companies dealing with operation of high-voltage equipment.

  • Open Original

    OJSC Irkutsk Electric Network Company (IESK) Southern Electric Networks

    MIKO-1 instruments have been used by personnel of Southern Electric Networks for more than a year. The instruments are used for measuring the DC resistance of main circuits of circuit breakers at scheduled maintenances and during repaird. They are mainly oil circuit breakers of U-220, MKP-110, C-35, VTD-35, VMUE-35, MKP-35, VMP-10, VK-10, VMG-133, VMP-10 types, and vacuum circuit breakers VVST-35, BB/TEL-10, EVOLIS, and others.

    The instrument is convenient in operation; battery capacity ensures several days of operation. The instrument can be operated at low temperatures.

  • Open Original

    OJSC of High-Voltage Equipment ELECTROAPPARAT

    OJSC ELEKTROAPPARAT has been intensively using instruments manufactured by SKB EP, LLC since 2005: PKV/U2, PKV/U3.1, PKV/M7, PUV-50, and MIKO-1 for adjustment of high-voltage SF6 circuit breakers during their commissioning and assembly.

    Our company produces SF6 circuit breakers VGP-110, VGP-220, VGP-330, VB-110, VGG-20, cells YaGT-110, current transformers TGFM-110, TGFM-220, TGF-330, TGF-500, and voltage transformers ZNGA-110, and ZNGA-220.

    With the help of PKV instruments our specialists perform non-destructive assessment of the circuit breaker condition, control several nodes simultaneously with high accuracy, which reduces the period of circuit breaker adjustment and time for documenting their acceptance. Graphic presentation of characteristics and parameters vividly demonstrate the operation of circuit breaker nodes.

    PUV-50 instrument is used for life tests of manufactured and newly developed circuit breakers.

    MIKO-1 instrument is used for measuring the transient resistances of circuit breaker contacts, and of current and voltage transformer windings. The instrument is compact, has high precision of measurements, simple in manipulation and convenient to use owing to its mobility and independent power supply.

    СWe can willingly recommend the above instruments manufactured by SKB EP for units dealing with circuit breaker adjustment and operation.

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