High Voltage Switchgear 12kV 50Hz For Power Plants air insulated switchgear
High Voltage Switchgear
1. Overview of Gmini Environmentally Switchgear,High Voltage Switchgear
Gmini is an environmentally friendly switchgear with air-based insulation. It solves the dependence on main insulation materials such as SF6 and epoxy resin. It is based on the long-term practical experience of GZS1k switchgear, and comprehensively considers the user’s experience in medium voltage switchgear. The specific requirements are also a unity of long-term operating experience and innovative technology
This switchgear meets the standards of IEC, GB, etc. It has the interlocking function of preventing the push-pull circuit breaker trolley with load, preventing misdivision and grounding switch, and is a power distribution device with superior performance.
2. Purpose of Gmini Environmentally Switchgear,High Voltage Switchgear
It is widely used in power plants, small and medium-sized generators to transmit power, industrial and mining enterprises, power distribution, and secondary substations of power systems, such as power receiving and transmission, and large-scale high-voltage motor starting, etc., for control, protection, and monitoring.
3. Main features of Gmini Environmentally Switchgear,High Voltage Switchgear
- Environmental protection: application of new insulating materials
- Economical type: simplify structure design and save manufacturing cost
- Intelligent: equipped with SYJK5501 intelligent control unit
- Modularization: Covering cabinet width 600-1000mm
- miniaturization
- Flexibility: Provides a complete solution
- Reliability: adopt CAE technology design to simulate structure, electric field and heating state
4. Technical Data of Gmini Environmentally Switchgear,High Voltage Switchgear
| Rated voltage | 12kV |
| Rated frequency | 50Hz； |
| Rated current | 630A,1250,1600,2000,2500,3150,4000A |
| Rated insulation level | 75kV (phase to phase, to ground, lightning peak value), 85kV (isolation fracture) |
| Rated short-circuit breaking current | 20kA,25,31.5,40kA |
| Rated short-circuit making current | 50,63,80,100kA |
| Rated short-circuit duration | 4s |
| Dimensions (depth) (mm) | 600——1000mm |
| Executive standard | GB/3906,GB/T11022-1999,JB/T3855-1996,DL/T403-2000,DL/T404-1997 |
| Ambient temperature | -25℃~+40℃ |
| Humidity |
Maximum daily average relative humidity 95% Maximum monthly average relative humidity 90% |
| Saturated vapor pressure | Daily average value is not more than 2.2kpa, monthly average value is not more than 1.8kpa |
| Earthquake intensity | The ground horizontal acceleration is 0.2g; the vertical acceleration is 0.1g at the same time. Resonance, sine, and beat wave test methods are used; 5 times of excitation, 5 waves each time, with an interval of 2s between each time. The safety factor is not less than 1.67. |
| Altitude | ≤1000m |
5.Ordering instructions of Gmini Environmentally Switchgear,High Voltage Switchgear
The following information should be provided when ordering
- Main wiring plan number and single-line system diagram, arrangement diagram and its floor plan
- Secondary schematic diagram, terminal arrangement diagram, if there is no terminal arrangement diagram, arrange according to the manufacturer’s terminal arrangement
- The model, specification and quantity of the electrical components of the switch cabinet
- Summary of electrical equipment
If there are other special options, please specify when ordering
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