China Sf6 Ring Main Unit Gas Insulated Switchgear Distribution Board, Find details about China Ring Main Unit, Rmu from Sf6 Ring Main Unit Gas Insulated Switchgear Distribution Board
High-Reliable Gas Insulated SF6 Switchgear
IDescription:
RM6(XGND)-12 fully insulated fully enclosed compact switchgear, which can realize functions of control, protection, measurement, monitoring, communication, etc. is especially suitable for places with small distribution facility sites and high-reliability requirements, and places with a relatively harsh natural environment and conditions, such as underground, highland and coastal areas. It is mainly used in areas where land is tight and space is limited, high reliability is required, like industrial and mining enterprises and substations, subways, light rail railways, etc. It combines microprocessor technology, modern network communication technology and new switch manufacturing technology to effectively separate and combine load current and short circuit current.
The measurement protection control and communication functions configured inside the device can fully meet the requirements of the distribution automation system. The conductive parts of the high voltage components such as circuit breakers, three working position switches and load break switches in the main circuit are installed in a sealed cabinet-type stainless steel casing. The biggest feature is that it is not affected by the external environment, and has high reliability and can make the equipment run safely for a long time in places with poor environment; secondly, the size of the high voltage component is reduced, the device is miniaturized, and the parts inside the sealed casing are free from corrosion and rust, thereby eliminating the influence. In addition, with high voltage components with stable performance and long electrical life, maintenance-free or fewer maintenance requirements can be achieved
NO. | Items | Unit | Value | |||
Load break switch | Combination | Vacuum circuit breaker | Disconnect/ earth switch | |||
1 | Rated voltage | kV | 12 | |||
2 | Rated frequency | Hz | 50 | |||
3 | Power frequency withstand voltage (phase-to-phase/across open contacts) | kV | 42/48 | |||
4 | Lightning impulse withstand voltage (phase-to-phase/across open contacts) | kV | 75/85 | |||
5 | Rated current | A | 630 | See note 1 | 630 | 630 |
6 | Rated closed-loop breaking current | A | 630 | |||
7 | Rated cable charging breaking current | A | 10 | |||
8 | Rated short circuit making current (peak) | kA | 50 | 80 | 50 | |
9 | Rated peak withstand current | kA | 50 | |||
10 | Rated short time withstand current | kA/4s | 20 | |||
11 | Rated short circuit current | kA | 31.5 | 20 | ||
12 | Rated transfer current | kA | 1700 | |||
13 | Max. current of equipped fuse | kA | 125 | |||
14 | Circuit resistance | μΩ | ≤300 | ≤600 | ≤300 | |
15 | Mechanical life | times | 5000 | 3000 | 5000 | 2000 |
C | Load switch module | Width=325mm |
D | Cable connection module without grounding knife | Width=325mm |
F | Load switch fuse combination electrical module | Width=325mm |
V | Vacuum circuit breaker module | Width=325mm |
SL | Busbar segmentation switch module (load switch) | Width=325mm |
SvBr | Busbar segmentation switch module (vacuum circuit breaker) | |
SV is always with the bus lifting module | Width=650mm | |
M | Meter module 12kV | Width=695mm |
PT | Module | Width=370 or 695mm |
Note: A single module must add extension before it can be used. |
Altitude: not more than 2000m |
Ambient temperature: maximum temperature +40ºC; Minimum temperature -40ºC |
Relative humidity: ≤95% |
Earthquake intensity: 9 |
Installation place: the place where there is no water drop, fire, explosion danger, serious pollution, chemical corrosion and violent vibration |
Zhejiang ZheGui Electric Co., Ltd was established in 2013. We are located in Zhejiang with convenient transportation access and developed electrical market. We are group of private enterprises that hold the production license issued by the former ministry of energy and ministry mechanical and electrical engineering.
The company has nearly 60 million fixed assets and more than 60 employees, covering 23133 square meters. We are specialized in R&D production of complete switchgear of high and low voltage equipment such as prefabricated substation, distribution cabinet/box, drawer cabinet, ring network cabinet, inflatable cabinet, etc.
We owns three CNC bending machine, CNC shearing machine, CNC laser cutting machine and a series of advanced production equipment to further optimized the product structure and improve the efficiency of production. After nearly 7 years of development, it has passed ISO 9001-2000 quality system certification. All items produced by our own factory, so our advantages are: reliable quality and reasonable price. Gather the world's energy to delight your business. It's honorable for Zhegui to share your progress, brilliance and success!