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Home > Products > Switchgear > Glx24 Series Sf6 Insulated Ring Main Unit

Glx24 Series Sf6 Insulated Ring Main Unit

Basic Info

Model No.:  GLX24

Product Description

Model NO.: GLX24 Structure: Fixed Board Form: All- packaged Type Size: 3 Uint Shell Material: Stainless Steel Brand: Galaxy Humidity: Max.Daily Average Relative Humidity Less Than 95% Annual Leakage Rate: Less Than or Equal to 0.02% Trademark: GALAXY Type: Power Certification: ISO9001:2000 Operation Voltage: High Voltage Application Range: Power Plants Shell Protection Grade: IP56 Ambinent Tempeture: -40---+40 Degree Centigrade Alititude: Less Than or Equal to 2000m Rated Transfer Current: 1800A Specification: SGS GLX24 series SF6 Insulated Ring Main Unit

GLX24 series Ring Main Unit is an extensible,SF6 insulated Switchgear,with rated voltage of 12&24 KV.All it s HV parts are contained in an air-tight gas tank,which is made from stainless steel of 3mm.The whole switching assenbly is SF6 insulated,and free from any external influence,ensuring it great reliability of service and maintenance free.By plug-in type busbar extension,GLX24 series RMU can be free combination and full modularization.The busbar extension has passed type test for power and thermal stability,and is fully insulated and shielded,exhibiting high reliability and safety.GLX24 series Ring Main Unit is suitable for all MV network up to 24 KV,all compact power stations,power distribution substations in all importand industries,such as petrol-chemical industry,metallurgical and mining industries,and all Transformer substations ans wind power system.
  Table1: Technical data for 12KV Ring Main Unit
Unit LBS unit Switch-fuse unit VCB unit Busbar subsection unit
Rated voltage
KV  12 12 12 12
Power frequency withstand voltage(1 min) phase to   phase/earth KV  42 42 42 42
Across the isolating distance KV 48 48 48 48
Impulse withstand voltage phase to   phase/earth KV 75,(95)* 75,(95)* 75,(95)* 75,(95)*
Across the isolating distance KV 85,(110)* 85,(110)* 85,(110)* 85,(110)*
Rated frequency Hz 50,60 50,60 50,60 50,60
Rated current A 630 1 630 630
Rated short circuit breaking current KA

2 20,(25)*
Rated short time withstand current KA/s       20/3      (20/4,25/1)*
      20/3      (20/4,25/3)*        20/3      (20/4,25/1)*
Rated peak withstand current KA 50,(63)*
50,(63)* 50,(63)*
Rated short circuit making current KA 50,(63)* 2 50,(63)* 50,(63)*
Rated transfer current A

Rated active load breaking current A 630

Rated closed loop breaking current A 630

5% raed active load braeking current A 31.5

Rated operation sequence

0-0. 3s-CO-180s-CO
Mechnical lifetime Ops 5000 5000 10000 5000
Eletrical lifetime
E2 E3
Thickness of stainless steel mm 3.0
Rated SF6 pressure kPa 30(at 20ºC,101.3kPa)
Annual leakage rate ≤0.02%
Water treatment test 12kV 24 hours(at 30 kPa under the water
Internal arc test 20kA 1s
Protection degree Gas tank IP 67
Fuse holder IP 67
RMU enclosure IP 4%

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Product Categories : Switchgear

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