- Product Details
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Quick Details
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Place of Origin:
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Zhejiang, China
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Brand Name:
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GP, Greenpower
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Model Number:
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GPR-24KV
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Material:
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Stainless steel, Stainless steel, Alu-zinc sheet
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Rated Voltage:
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12kV: 24kV
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BIL:
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65kV/79kV
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Rated frequency:
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50Hz, 60Hz
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Degree of Protection:
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Gas Tank IP67, Enclosure IP4X
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Mechanical life:
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5000 times
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Operation sequence:
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O-0.3s-CO-180s-Co
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Color:
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RAL7032, RAL7035, RAL7035
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Website:
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www.sinogp.com
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Product Name:
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Ring Main Unit
Quick Details
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Voltage:
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24000
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Current:
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630
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Size:
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350
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Place of Origin:
-
Zhejiang, China
-
Brand Name:
-
GP, Greenpower
-
Model Number:
-
GPR-24KV
-
Material:
-
Stainless steel, Stainless steel, Alu-zinc sheet
-
Rated Voltage:
-
12kV: 24kV
-
BIL:
-
65kV/79kV
-
Rated frequency:
-
50Hz, 60Hz
-
Degree of Protection:
-
Gas Tank IP67, Enclosure IP4X
-
Mechanical life:
-
5000 times
-
Operation sequence:
-
O-0.3s-CO-180s-Co
-
Color:
-
RAL7032, RAL7035, RAL7035
-
Website:
-
www.sinogp.com
-
Product Name:
-
Ring Main Unit
Product show
Medium Voltage 12kV 24KV SF6 RMU Ring Main Unit Switchgear
Summary
GPR-24 series Ring Main Unit is an extensible, SF6 insulated switchgear, with rated voltage of 12&24 kV. All its HV live parts are
contained in an air-tight gas tank, which is made from stainless steel of 3mm. The whole switching assembly is SF6 insulated, and
free from any external influence, ensuring it great reliability of service and maintenance free. By plug-in type busbar extension,
GPR-24 series Ring Main Unit can be of 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. GPR-24 series Ring Main
unit is suitable for all MV network up to 24 kV, all compact power stations, power distribution substations in all important
industries, such as petrol-chemical industry, metallurgical and mining industries, and all transformer substations and wind power
system.
Products feature
1.Advanced process technique for gas tank
The digital-controlled laser cutting and punching system and three-dimension and five-axis laser welding system imported from
Germany with ensure the gas tightness and uniformity of all gas tanks.
The fully automatic and integral helium leak detection system, made by SEILER Vakuumtechnik GmbH, through detecting of Helium
leakage by mass spectrograph, brings gas leakage rate per year down to less than 0.02%, ensuring the life span of gas tank of over
30 years.
Advanced process technique for parts .
All epoxy resin insulated parts, including insulated poles, are manufactured by fully-automatic and digitally controlled epoxy
resin vacuum mixing/pressure gelatinizing system from Hedrich (Germany) .
The busbar connector, cable connector, end-plug and other silicone rubber insulated parts are manufactured by fully-automatic and
digitally controlled silicone rubber mixing/pressure gelatinizing system from VOGEL(Switzerland).
2.Excellent solutions for products
With small and compact structure, the basic functional units K, T, V, B and C have uniform dimension: 350*800*1380 mm
(width*depth*height) .
Complete solutions:
Single version: load break switch unit, switch-fuse unit, vacuum circuit breaker unit, busbar subsection unit, cable unit,
metering unit, etc.
Block version can be made up of two, three, four, five or six functional units.
Single units and block version can be connected by busbar connectors flexibly.
3.trong adaptability to the environment
The primary conductive system is fully sealed in the SF6 gas tank and will not be influenced by the outside environment,
independent of the impact of dew, dust, salt fog, etc. Therefore, GPR-24 series can be applied at various severe service
conditions.
Technology & details
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Description
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Unit
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LBS Unit
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Switch-fuse Unit
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VCB
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Busbar subsection unit
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||||
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Unit
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Rated voltage
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KV
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12
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12
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12
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12
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||||
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Power frequency withstand voltage (1min)
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Phase to phase/earth
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KV
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42
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42
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42
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42
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||||
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Across the isolating distance
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KV
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48
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48
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48
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48
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||||
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mpulse withstand voltage
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Phase to phase/earth
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KV
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75, (95)*
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75, (95)*
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75, (95)*
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75, (95)*
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||||
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Across the isolating distance
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KV
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85, (110)*
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85, (110)*
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85, (110)*
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85, (110)*
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||||
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Rated frequency
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Hz
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50,60
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50,60
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50,60
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50,60
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||||
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Rated current
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A
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630
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①
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630
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630
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||||
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Rated short circuit breaking current
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KA
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②
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20,(25)*
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||||
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Rated short time withstand current
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KA/s
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20/3 (20/4, 25/1)*
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20/3,(20/4, 25/3)*
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20/3, (20/4, 25/1)*
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||||
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20/3, (20/4, 25/1)*
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Rated peak withstand current
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KA
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50, (63)*
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50, (63)*
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50, (63)*
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||||
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Rated short circuit making current
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KA
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50, (63)*
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②
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50, (63)*
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50, (63)*
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||||
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Rated transfer current
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A
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1800
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||||
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Rated active load breaking current
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A
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630
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630
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||||
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Rated closed loop breaking current
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A
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630
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630
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||||
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5% rated active load breaking current
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A
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31.5
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31.5
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||||
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Rated operating sequence
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O-0.3s-CO-180s-CO
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||||
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Mechanical lifetime
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Ops
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5000
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5000
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10000
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5000
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||||
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Electrical lifetime
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E3
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E2
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E3
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||||
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Thickness of stainless steel
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mm
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3
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||||
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Rated SF6 pressure
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KPa
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30 (at 20℃ , 101.3kPa)
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||||
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Annual leakage rate
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＜ 0.02%
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Water treatment test
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12kV 24 hours (at 30 kPa under the water)
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||||
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Internal arc test
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20KA 1s
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||||
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Gas tank
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IP67
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||||
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Protection degree |
Fuse holder
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IP67
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||||
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GPR enclosure
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IP4X
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||||
Ordering instruction
Production equipment and testing equipment
Strict quality control system
* Strict partial discharge testing and control of the whole machine and components
* Background of partial discharge testing room: ≤0.5pC
* Partial discharge of the whole equipment under 1.1Un ≤10pC
Ensure the insulation reliability of the equipment under long-term operation!
* Strict partial discharge testing and control of the whole machine and components
* Background of partial discharge testing room: ≤0.5pC
* Partial discharge of the whole equipment under 1.1Un ≤10pC
Ensure the insulation reliability of the equipment under long-term operation!
packing and shipping
Project case
12-40.5kV C-GIS gas insulated switchgear, more than 6,000 units have been put into operation in the past ten years; among them, 124 units are OEM Chongqing Metro Line 6 of foreign brands, 128 units are exported to Australia, 66 units in Venezuela, 160 units in North Africa and Morocco, and exported to Sweden, Britain, Malaysia, Indonesia, and other countries. There are more than 2,000 units in operation of Shanghai Electric Power Company, all 6 demonstration stations of the State Grid, Henan Electric Power Company, and plateau substations above 4600m above sea level. It also exports 150 units to Japan, 250 units to Saudi Arabia, 26 units to Italy, Belgium, and other countries.
Certificate
Greenpower's story
Greenpower, founded in 2013, is jointly established by several state-owned excellent industrial electrical professional
manufacturers, we committed to meet the procurement needs of clients and produce environment-friendly switchgear, substation, insulating products, and switchgear related products. It is a professional switchgear procurement service provider with entity of industrial electrical.
manufacturers, we committed to meet the procurement needs of clients and produce environment-friendly switchgear, substation, insulating products, and switchgear related products. It is a professional switchgear procurement service provider with entity of industrial electrical.
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