Quick Details
Description
- Model NO.: GRMU
- Structure: Protection
- Form: All- packaged Type
- Size: 1 Uint
- Shell Material: Stainless Steel
- Brand: Shanghai Electric
- Transport Package: Wooden
- Origin: Shanghai
- Type: Power
- Certification: ISO9001:2000, CCC, Type Tested
- Operation Voltage: High Voltage
- Application Range: Transformer Protection
- Shell Protection Grade: IP56
- Trademark: Shanghai Electric
- Specification: IEC62271-200
- HS Code: 8537209000
GRMU is a ring main unit for the secondary distribution network. GRMU can be supplied in 10 different configurations suitable for mostswitching applications in 12/24 kV distribution networks. It is extendable and combined with the SafePlus concept, which is ABB's flexible, modular compact switchgear, they represent a complete solution for 12/24 kV secondary distribution networks. RMR and SafePlus have identical user interfaces.
GRMU is a completely sealed system with a stainless steel tank containing all live parts and switching functions. A sealed steel tank with constant atmospheric conditions ensures a high level of reliability as well as personnel safety and a virtually maintenance-free system.
The RMR concept offers a choice of either switch-fuse combination or circuit-breaker with relay for protection of the transformer. RMR can be supplied with an integrated remote control and monitoring unit.
This product is in conformity with the standards of IEC60420, GB/T11022, GB3804, GB3906, IEC62271-200, etc.
Service environment
A) Air temperature: Maximum temperature: +40C; Minimum temperature: -20C
B) Humidity: Monthly average humidity 95%; Daily average humidity 90%.
C) Altitude above sea level: Maximum installation altitude: 2500m
D) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
E) No frequent violent shake
Main technical specifications:
|
No.
|
Item
|
Unit
|
C Module
|
V Module
|
|
Load break switch
|
Circuit breaker
|
|
1
|
Rated voltage
|
kV
|
12
|
24
|
12
|
24
|
|
2
|
Rated current
|
A
|
630
|
|
3
|
Rated frequency
|
Hz
|
50/60
|
|
4
|
1min Power frequency withstand voltage
|
kV
|
45
|
55
|
45
|
55
|
|
5
|
Lightning impulse withstand voltage
|
kV
|
75
|
125/150
|
75
|
125/150
|
|
6
|
Rated transfer current
|
A
|
1700
|
1400
|
|
|
7
|
Rated active load and close circuit breaking current
|
A
|
630
|
|
8
|
Rated cable charge breaking current
|
A
|
50&10
|
|
9
|
Rated short circuit breaking current
|
kA
|
|
20
|
16
|
|
10
|
Rated short circuit making current(peak)
|
kA
|
63
|
50
|
63
|
50
|
|
11
|
Short time (2s) withstand current, load switch/earth
|
kA
|
25/20
|
20/20
|
25/20
|
20/20
|
|
12
|
Rated withstand current (peak)
|
kA
|
63
|
50
|
63
|
50
|
|
13
|
Mechanism life
|
Times
|
3000
|
10000
|
3000
|
Shanghai Electric Group Co., Ltd(Shanghai Electric) since 1936.
Members of goverment mechanical ministry
Key enterprises of Shanghai
We are one of the earliest manufacturer of electrical equipment in China
We used cooperate with German Stahl, Siemens and Mannesmann, American Westinghouse, Timage, turbine air systems, Wyman-Gordon forgings, France Schneider, Italian Dalmine, ABB Switzerland, Spain Tubacex, Japan Mitsubishi etc famous international company
Our company was ISO9001/ISO14001/OHSAS18001 approval
Group has sucess project for Qinshan nuclear power plant, the YANGZI RIVER project, Pudong International Airport, Baosteel Group, Shengli Oilfield, the Oriental TV Tower, Nepal conference building, Iran subway, Pakistan Chashma nuclear power plant, sugar mills in Malaysia, Royal Palace of Thailand, and other domestic and foreign key projects supporting.
After 70 years of development, group have completely R&D, production, sales, contracting, engineering branch
Covering power transmission and distribution equipment manufacturing, environmental protection and energy saving products manufacturing, power generation equipment engineering contracting, import and export trade, bio medical industry of 5 big pillar, the camp pin network throughout the world more than 30 countries and regions, the group company (including member enterprise with total assets of 11.2 billion yuan, the number of employees more than 13000 people, the total output value in 2015 reached 26.5 billion yuan.
We will be a new concept, the success of the performance, solid strength, good reputation for you to build a boutique project!
