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Outdoor ring main unit
XGWF-12

DSC_4537

DSC_4537

微信图片_20200116133311

微信图片_20200116133311

  • Description
  • Data Sheet
  • Product Introduction

    With the continuous development, the urban power grid has greatly improved, but still most cities have formed or are forming a large number of electricity load-up areas. The power supply by 10kV from the substation (or branch line) to the user directly is difficult to meet the requirements of urban development, which resulted in a refresh power supply - through the switching substation to supply the power to the users. However, with the urban density increasing, the original construction of the switching substation is limited by the land and the urban planning office, therefore a more advanced and practical power distribution equipment - small-scale outdoor intelligent switching substation (outdoor ring cabinets) is invented, which has not special requirement for site construction and space saving, and has very flexible configuration. The power supply is more reliable, and with advantages of cost save , short period installation and adjustment.

    With the development of modern industry, the requirements for automation and intelligence computerization of the electrical equipment are becoming higher and higher. For the management improvement, the utilization of the new technology is a direction of developing, which includes the modern electronic, sensor, communications or computer and internet which can provide the integration of monitoring, protection, control or measurement under the normal or accident condition.

    The intelligent small substation (outdoor ring switchgear) is designed on the basis of European substation, which fix all parts of the 10kV switchgear, circuit breakers, load switches, current CT, voltage transformer PT, substation FTU, RTU and communication control terminal (CCU, 10kV metering, automatic copy table, UPS power supply and the indicators) into a movable, sealed and anti-moisture cabinet which made by stainless steel tank. This type product makes the integration of the primary and secondary system and the modularization of the assembly, and the construction period is shortened, and the reliability of the urban power grid operation is greatly increased.

     

    Model Details

     

    Prefabricated substation

     

    Conditions of Use

    Installation Placement: Outdoor

    Ambient Temperature: -35 ℃ ~ +55 ℃ Average Max. Daily +40℃, Average Maximum Yearly +35℃

    Wind Speed: ≤ 35 m/s

    Relative Air Humidity: ≤90%(+25℃)

    Gradient of the Ground ≤5°

    Seismic Intensity ≤ VIII

    No risk of fire hazard, explosion, severe contamination, chemical corrosion and violent vibration.

    • Serial Number

      Items

      Unit

      Parameter

      1

      Rated Voltage

      kV

      12

      2

      Rated Frequency

      Hz

      50/60

      3

      1 Minute Working Frequency Withstand Voltage

      kV

      Separate

      phase

      42

      Withstand Voltage of Thunder Impact

       

      Relatively

      75

      Working Frequency Withstand Voltage of Auxiliary Control Circuit

      V

      2000

      4

      Rated Current

      A

      400.630

      5

      Rated Breaking Current of the Closed-Ring

      A

      400.630

      6

      No-load Transformer Breaking Current

      A

      16

      7

      Cable Charging Breaking Current

      A

      25

      8

      Short-term Withstand Current (load switch and the main earth switch) 1sec

      kA

      25

      9

      Closing Current (load switch and the main earthing switch)

      kA

      63

      10

      Short-term Withstand Current (the grounded switch at the lower end of the fuse) 1sec

      kA

      2

      11

      Closing Current (the grounded switch at the lower end of the fuse)

      kA

      5

      12

      Internal Fault Arcing (IEC298) 1sec

      kA

      16

      13

      Current Transfers

      A

      1700

      14

      Weight

      Kg

      840~1440

       

Add: No.6 Kaiyuan Rd, Hai’an city, Jiangsu Province, China, 226600

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Time of issue:2019-10-16 00:00:00
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