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AVR-24 solid insulated secondary switchgear RMU 22kV 24kV 27kV 27.5kV
medium voltage recloser, circuit breaker, RMU, switchgear manufacturer - New Concept Electric
  • AVR series intelligent compact solid insulated switchgear (RMU) is developed and manufactured by NCE which has proprietary intellectual property right, according to the development requirement of intelligent power grid, adopting the design concepts of “Intelligent, Energy saving, Eco friendly, Maintenance free”. It is the domestic initiative intelligent permanent magnetic vacuum switchgear, gathering the functions of measurement, control, protection and communication, a very high intelligent degree. This product is suitable for railway, subway and metro especially. We also have the successful examples. It is an important composition of the smart grid. If you want to purchase solid insulated RMU, please come to New Concept Electric.


     Description Unit Using Environment
      Ambient air temperature Max temperature  ℃ +70
     Min temperature -50
    Max daily temperature difference K 30
     Altitude m ≤4500
     Solar radiation intensity W/cm2 0.1
     Pollution class
     Ⅳ
     Icing-thickness mm 10
      HumidityAverage value of daily relative humidity  % ≤100
    Average value of monthly relative humidity ≤95
     Earthquake tolerance ability ℃ ≤8

    20190814160024724.jpg@!w800

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    Rated voltagekV24
    Rated currentA630/1250
    Rated frequencyHz50/60

    Rated short time (1min) power frequency withstand voltage 

    (to earth/ between open contacts)

    kV                   65/79
    Rated lightning impulse withstand voltage (to earth/ between open contacts)kV125/145
    Rated short circuit breaking currentkA25
    Rated short circuit closing current (peak value)kA63
    Rated short time withstand current (4s)kA63
    Rated peak value withstand currentkA63
    Rated short circuit breaking timesTime30
    Operation mechanism
    Permanent Magnetic/Spring
    Mechanical life of vacuum circuit breakerTime

    10000

    (30000 Permanent Magnetic)

    Mechanical life of isolating/grounding switchTime3000
    Shell protection grade
    IP4X
    Operation sequence of circuit breaker
    O-0.3s-CO-180s-CO
    Rated operating powerAC/DC 220

    20190814155800195.jpg@!w800

    20190814155757772.jpg@!w800

    20190814155753295.jpg@!w800

    Main functions:

    -Protection function: Automatically identify fault current, fast break transient current, fast break time limited current, timed overcurrent, directional overcurrent, overvoltage, undervoltage, single-phase grounding protection in low current grounding system, cooling load operation restrain break, etc.

    -Measurement function: Measure 3-phase current, 3-phase voltage, active power, reactive power, active energy, reactive energy, peak/trough energy, power factor and frequency, etc.

    -Control function: Local and long-distance remote control, realize fault location of line automatically according to requirements, isolating fault and recover the non-fault line power supply fast, load shedding automatically at low frequency, capacitor automatic switch, backup power automatic switch, etc.

    Main characteristics:

    -Vacuum extinction, solid insulation, no oil, no SF6, no environmental pollution, no explosion or gas leakage possibility, meet environmental requirements.

    -Fully enclosed water-proofing design. No high voltage conductor exposed. Especially suitable for damp area or flood-prone area. Stably supply power when used in damp or submerse condition.

    -Operation mechanism can be spring mechanism or permanent magnet mechanism according to customers’ habits and actual requirements.

    -Isolating/grounding switch is integrated with circuit breaker in design. It has compact structure and reliable mechanical and electrical interlocking design programs. It can prevent maloperation effectively.

    -Adopt fast algorithm with national patent technology (patent number: ZL200720037710.7) so as to obtain fast breaking capacity for circuit breaker. As a result, it can isolate fault circuit rapidly. If we take 12kV circuit breaker as an example, it takes less than 25ms from inspecting fault to cut out fault circuit. It can avoid the problem of override trip effectively. 

    -Adopt single-phase grounding protection system with national patent technology (patent number: ZL201020178325.6). It can realize online judgment to single phase grounding fault of low current grounding system without adding device. Releases warning or tripping action according to setting value

    -Apply the most advanced embedded operation system currently; adopt dual CPU structure, including ARM9 for general processing and system control, and strong DSP with high efficiency processing on multitasking; and realize high speed data processing, control and communication. 

    -Equipped with complete power indicator and position indicator.

    -Modularized design which can be expandable freely according to requirements.

    -Compact structure, small volume, light weight, convenient installation.

    -Visible open contacts, meets safety standard.

    -Automatically identify power supply mode, switch between dual power supply flexibility, increase the stability of power supply.

    -Flexible communication methods; support GSM short message, GPRS, CDMA general wireless business, optical fiber, twisted-pair, wireless, carrier wave and other communication ways, and support various communication agreements.

    -Adopt temperature measurement and modification technology so as to make the switch device operate reliably and stably under different environment conditions across the country.

    -Friendly operation interface of controlling system; Chinese/English version system; convenient and fast to set parameters. Humanized HMI port is provided to realize parameter setting and motion record searching conveniently. It has data record function which can reserve latest 256 data records, operations and fault information.

    -Intelligentization function: Comprehensively analyze online power network parameter, online monitor performance characteristics of circuit breaker, online program, realize switch device long distance control and management when cooperating with power distribution automation system main substation, realize onsite, remote or hierarchical control type power distribution automation system functions.

    -Data record function: Reserve latest 256 data records, operations and fault information, etc.


    Optional functions:

    -Backup power automatic control cabinet can be optionally chosen to realize automatic switch between dual power supply lines.

    -Super capacitor or storage battery (lead-acid or Li battery) can be optionally chosen for backup power.

    -Fault oscillogram record function can be realized to keep the latest 50 data record.

    -Automatic re-close function can be optionally chosen.

    -GSM mobile SMS function can be optionally chosen to send switch motion information to designated users.

    -Optionally provide GPRS communication and optic fiber communication according to customers’ requirements, Chinese and English SMS is available. Provide RS232/RS485 and RJ45 Ethernet port, communication protocol can be equipped flexibly according to requirements, many kinds of communication protocols and derivate protocols are supported like 101, 104, etc.

    -Synchronous close-open technology: search zero-cross point according to load characteristics, self-adapt discreteness of switch parameter and effect of environmental factors, realize synchronous close-open, restrain operation overvoltage and close inrush, effectively, especially suitable for switch capacitor and transformer.

    -Cable terminal temperature measurement device can be optionally chosen. (wired, wireless, infrared programs for options)

    -Three shell materials (SMC, stainless steel, GRC) for options to meet different areas requirements.



  • Rated voltagekV24
    Rated currentA630/1250
    Rated frequencyHz50/60

    Rated short time (1min) power frequency withstand voltage 

    (to earth/ between open contacts)

    kV                   65/79
    Rated lightning impulse withstand voltage (to earth/ between open contacts)kV125/145
    Rated short circuit breaking currentkA25
    Rated short circuit closing current (peak value)kA63
    Rated short time withstand current (4s)kA63
    Rated peak value withstand currentkA63
    Rated short circuit breaking timesTime30
    Operation mechanism
    Permanent Magnetic/Spring
    Mechanical life of vacuum circuit breakerTime

    10000

    (30000 Permanent Magnetic)

    Mechanical life of isolating/grounding switchTime3000
    Shell protection grade
    IP4X
    Operation sequence of circuit breaker
    O-0.3s-CO-180s-CO
    Rated operating powerAC/DC 220


  • 20190814155800195.jpg@!w800

    20190814155757772.jpg@!w800

    20190814155753295.jpg@!w800

    Main functions:

    -Protection function: Automatically identify fault current, fast break transient current, fast break time limited current, timed overcurrent, directional overcurrent, overvoltage, undervoltage, single-phase grounding protection in low current grounding system, cooling load operation restrain break, etc.

    -Measurement function: Measure 3-phase current, 3-phase voltage, active power, reactive power, active energy, reactive energy, peak/trough energy, power factor and frequency, etc.

    -Control function: Local and long-distance remote control, realize fault location of line automatically according to requirements, isolating fault and recover the non-fault line power supply fast, load shedding automatically at low frequency, capacitor automatic switch, backup power automatic switch, etc.

    Main characteristics:

    -Vacuum extinction, solid insulation, no oil, no SF6, no environmental pollution, no explosion or gas leakage possibility, meet environmental requirements.

    -Fully enclosed water-proofing design. No high voltage conductor exposed. Especially suitable for damp area or flood-prone area. Stably supply power when used in damp or submerse condition.

    -Operation mechanism can be spring mechanism or permanent magnet mechanism according to customers’ habits and actual requirements.

    -Isolating/grounding switch is integrated with circuit breaker in design. It has compact structure and reliable mechanical and electrical interlocking design programs. It can prevent maloperation effectively.

    -Adopt fast algorithm with national patent technology (patent number: ZL200720037710.7) so as to obtain fast breaking capacity for circuit breaker. As a result, it can isolate fault circuit rapidly. If we take 12kV circuit breaker as an example, it takes less than 25ms from inspecting fault to cut out fault circuit. It can avoid the problem of override trip effectively. 

    -Adopt single-phase grounding protection system with national patent technology (patent number: ZL201020178325.6). It can realize online judgment to single phase grounding fault of low current grounding system without adding device. Releases warning or tripping action according to setting value

    -Apply the most advanced embedded operation system currently; adopt dual CPU structure, including ARM9 for general processing and system control, and strong DSP with high efficiency processing on multitasking; and realize high speed data processing, control and communication. 

    -Equipped with complete power indicator and position indicator.

    -Modularized design which can be expandable freely according to requirements.

    -Compact structure, small volume, light weight, convenient installation.

    -Visible open contacts, meets safety standard.

    -Automatically identify power supply mode, switch between dual power supply flexibility, increase the stability of power supply.

    -Flexible communication methods; support GSM short message, GPRS, CDMA general wireless business, optical fiber, twisted-pair, wireless, carrier wave and other communication ways, and support various communication agreements.

    -Adopt temperature measurement and modification technology so as to make the switch device operate reliably and stably under different environment conditions across the country.

    -Friendly operation interface of controlling system; Chinese/English version system; convenient and fast to set parameters. Humanized HMI port is provided to realize parameter setting and motion record searching conveniently. It has data record function which can reserve latest 256 data records, operations and fault information.

    -Intelligentization function: Comprehensively analyze online power network parameter, online monitor performance characteristics of circuit breaker, online program, realize switch device long distance control and management when cooperating with power distribution automation system main substation, realize onsite, remote or hierarchical control type power distribution automation system functions.

    -Data record function: Reserve latest 256 data records, operations and fault information, etc.


    Optional functions:

    -Backup power automatic control cabinet can be optionally chosen to realize automatic switch between dual power supply lines.

    -Super capacitor or storage battery (lead-acid or Li battery) can be optionally chosen for backup power.

    -Fault oscillogram record function can be realized to keep the latest 50 data record.

    -Automatic re-close function can be optionally chosen.

    -GSM mobile SMS function can be optionally chosen to send switch motion information to designated users.

    -Optionally provide GPRS communication and optic fiber communication according to customers’ requirements, Chinese and English SMS is available. Provide RS232/RS485 and RJ45 Ethernet port, communication protocol can be equipped flexibly according to requirements, many kinds of communication protocols and derivate protocols are supported like 101, 104, etc.

    -Synchronous close-open technology: search zero-cross point according to load characteristics, self-adapt discreteness of switch parameter and effect of environmental factors, realize synchronous close-open, restrain operation overvoltage and close inrush, effectively, especially suitable for switch capacitor and transformer.

    -Cable terminal temperature measurement device can be optionally chosen. (wired, wireless, infrared programs for options)

    -Three shell materials (SMC, stainless steel, GRC) for options to meet different areas requirements.


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Company Name: New Concept Electric Inc

Address: No. 7 Gujin Road, Kai Fa Qu,  Yangzhou, Jiang Su Province, China
E-mail: 791697695@qq.com
Phone: 15921273532
URL: www.yzxgn.net
Phone: 86-514-87849118
Fax: 86-514-87849108