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Electrical & Power Energy
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hongbo
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Business Type: Manufacturer
Main Products:35KV and below high and low voltage electrical appliances complete setselectrical materialshigh and low voltage power cabinetcontrol cabinetdistribution box
ID:20101623577
Category: Electrical & Power Energy
MOQ:1.00 Piece(s)
Gas Insulated Ring Main Unit Metal-Enclosed Gas Insulated Ring
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11KV 12kv Metal-Enclosed Sf6 Gas Insulated Ring Main Unit GIS
The GIR-12 type intelligent compact solid insulation switchgear is China's first-developed intelligent permanent-magnetic vacuum switchgear developed and manufactured by our company with independent intellectual property rights, which is based on the development demands of smart grid and adopts the design concept of being "intelligent, energy-saving, environmentally-friendly and maintenance-free". It integrates such functions as measurement, control, protection and communication etc, with high intelligent degree. This product is suitable for 50Hz, 12kV electric power systems, extensively applied to industrial and civil cable ring networks and power supply terminal projects; it is a top choice to guarantee safe, reliable, economical and efficient operation of the power network.
This product conforms to IEC60044-1, IEC60060, IEC60068-2, IEC60099-4, IEC60255-27, IEC60270, IEC60280.1, IEC60529, IEC60694, IEC60815-1, IEC60870-5-101, IEC61000-4, IEC61243-5, IEC62271, standards, etc.
Major Technical Parameters are Shown Below:
| Rated voltage | 12 kV |
| Rated current | 630/1,250 A |
| Rated frequency | 50 Hz |
| Rated short-duration (1 min) power frequency withstand voltage | 42 kV |
| Rated short-circuit breaking current | 20 kA |
| Rated short-duration withstand current (4s) | 20 kA |
| Rated lightning impluse withstand voltage | 75 kV |
| Rated short-circuit making current (peak value) | 50 kA |
| Rated peak withstand current | 50 kA |
| Rated short-circuit current drop-out times | 30 times |
| Mechanical service life of vacuum circuit breaker | 10,000 times |
| Mechanical service life of disconnectors/ground switch | 2,000 times |
| Protection degree of enclosure | IP67 |
| Rated operating sequence of circuit breaker | O-0.3s-CO-180s-CO |
| Rated work power supply | AC/DC 100/220V |
Using Environment:
| Description | Unit | Using Environment Value | |
| Surrounding Air | Max Temperature | oC | +50 |
| Min Temperature | -50 | ||
| Max Daily Temperature Difference | K | 30 | |
| Altitude | m | ≤2,000 | |
| Solar Radiation Intensity | W/cm2 | 0.1 | |
| Pullution Class | IV | ||
| Icing-Thickness | mm | 10 | |
| Humidity | Average Value of Daily Relative Humidity | % | ≤100 |
| Average Value of Monthly Relative Humidity | ≤95 | ||
| Earthquake Torelance Ability | Degree | ≤8 | |
Our advantages:
1. Most parts are manufactured ourselves, like: frame, cabinet, permanent magnet mechanism, insulation part, control panel, etc. That means the process quality control is effectively controlled.
2. Adopt fast algorithm with national patent technology (patent number: ZL200720037710.7) so as to obtain fast breaking capacity of circuit breaker. As a result, it can isolate fault circuit rapidly. It takes less than 25ms from inspecting fault to cut fault circuit by separate circuit breaker. It can avoid the problem of override trip effectively.
3. Adopt single phase earthing protection system with national patent technology (patent number: ZL201020178325.6). It can realize on-line judgment to single phase earthing fault of low current earthing system without adding device. Releases warning or tripping action according to setting value
4. We have permanent magnet mechanism and spring mechanism, for different customer requirements.
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