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The intelligent switchgear (outdoor ring main unit) adopts advanced technology. It installs and debugs 12/24kV switch cabinets, circuit breakers, load switches, current and voltage transformers, 12/24kV power PT, switchgear FTU, RTU, communication control terminal (CCU), 12/24kV metering and automatic meter reading, USP power supply, and indicating instruments into a movable, sealed, and moisture - proof stainless steel cabinet. Thus, the integration of primary and secondary systems in the urban distribution network and the modularization of assembly are realized, the construction period is shortened, and the reliability of urban power grid operation is greatly improved.
The intelligent switchgear (outdoor ring main unit) adopts advanced technology. It installs and debugs 12/24kV switch cabinets, circuit breakers, load switches, current and voltage transformers, 12/24kV power PT, switchgear FTU, RTU, communication control terminal (CCU), 12/24kV metering and automatic meter reading, USP power supply, and indicating instruments into a movable, sealed, and moisture - proof stainless steel cabinet. Thus, the integration of primary and secondary systems in the urban distribution network and the modularization of assembly are realized, the construction period is shortened, and the reliability of urban power grid operation is greatly improved.
| Serial Number | Name | Unit | Load Switch Cabinet | Combined Electrical Cabinet | ||
| 1 | Rated Peak Withstand Current | 50/63 | ||||
| 2 | Closed - loop Breaking Current | kA | 630 | |||
| 3 | Rated Cable Charging Breaking Current | A | 25 | |||
| 4 | Rated No - load Transformer Breaking Current | A | 16 | |||
| 5 | Rated Breaking Transfer Current | A | 1750 | |||
| 6 | Fuse Expected Short - circuit Breaking Current (RMS) | A | 63 | |||
| 7 | Short - time Withstand Current / Duration of Earthing Switch | kA | 25kA/1s | |||
| 8 | Rated Current Breaking Times | kA | ≥ 200 | |||
| 9 | Mechanical Life | times | ≥ 2000 | |||
| 10 | Annual Leakage Rate of SF6 Gas | times | Not more than 1% | |||
| 11 | Rated Insulation Level | 1min Power Frequency Withstand Voltage (RMS) | Between Fractures | kV | 48 | |
| Phase - to - Phase | kV | 42 | ||||
| Relative to Ground | kV | 42 | ||||
| Lightning Impulse Withstand Voltage (Peak) | Between Fractures | kV | 85 | |||
| Phase - to - Phase | kV | 75 | ||||
| Relative to Ground | kV | 75 | ||||
| 12 | Spring Operating Mechanism | Manual, can be upgraded to electric | ||||
| 13 | Operating voltage | V | DC 48V/AC 220V | |||
| 14 | Creepage distance of external insulation | mm/kV | ≥ 20 | |||
| 15 | Opening asynchronism | ms | Less than 5 | |||
| 16 | Closing asynchronism | ms | Less than 5 | |||
| 17 | Main circuit resistance | μΩ | Less than 140 | |||
| 18 | Cabinet enclosure protection class | IP4X | ||||
| Serial Number | Name | Unit | Load Switch Cabinet | Combined Electrical Cabinet | ||
| 1 | Rated Peak Withstand Current | 50/63 | ||||
| 2 | Closed - loop Breaking Current | kA | 630 | |||
| 3 | Rated Cable Charging Breaking Current | A | 25 | |||
| 4 | Rated No - load Transformer Breaking Current | A | 16 | |||
| 5 | Rated Breaking Transfer Current | A | 1750 | |||
| 6 | Fuse Expected Short - circuit Breaking Current (RMS) | A | 63 | |||
| 7 | Short - time Withstand Current / Duration of Earthing Switch | kA | 25kA/1s | |||
| 8 | Rated Current Breaking Times | kA | ≥ 200 | |||
| 9 | Mechanical Life | times | ≥ 2000 | |||
| 10 | Annual Leakage Rate of SF6 Gas | times | Not more than 1% | |||
| 11 | Rated Insulation Level | 1min Power Frequency Withstand Voltage (RMS) | Between Fractures | kV | 48 | |
| Phase - to - Phase | kV | 42 | ||||
| Relative to Ground | kV | 42 | ||||
| Lightning Impulse Withstand Voltage (Peak) | Between Fractures | kV | 85 | |||
| Phase - to - Phase | kV | 75 | ||||
| Relative to Ground | kV | 75 | ||||
| 12 | Spring Operating Mechanism | Manual, can be upgraded to electric | ||||
| 13 | Operating voltage | V | DC 48V/AC 220V | |||
| 14 | Creepage distance of external insulation | mm/kV | ≥ 20 | |||
| 15 | Opening asynchronism | ms | Less than 5 | |||
| 16 | Closing asynchronism | ms | Less than 5 | |||
| 17 | Main circuit resistance | μΩ | Less than 140 | |||
| 18 | Cabinet enclosure protection class | IP4X | ||||
Minimum ambient temperature: -25 °C;
Maximum daily temperature difference: 25K;
Indoor relative humidity: daily average ≤ 95%, monthly average ≤ 90%;
Earthquake resistance: Ground horizontal acceleration 0.2g; vertical acceleration 0.1g act simultaneously. Using resonance, sine, and beat wave test methods; excitation 5 times, 5 waves each time, with an interval of 2s between each time, and the safety factor is not less than 1.67;
The installation site should be free of gas vapor, chemical deposits, dust, dirt, and other explosive and corrosive media that seriously affect the insulation of the load switch;
It is used in ungrounded systems and 10kV systems grounded through small resistances or arc suppression coils.
Minimum ambient temperature: -25 °C;
Maximum daily temperature difference: 25K;
Indoor relative humidity: daily average ≤ 95%, monthly average ≤ 90%;
Earthquake resistance: Ground horizontal acceleration 0.2g; vertical acceleration 0.1g act simultaneously. Using resonance, sine, and beat wave test methods; excitation 5 times, 5 waves each time, with an interval of 2s between each time, and the safety factor is not less than 1.67;
The installation site should be free of gas vapor, chemical deposits, dust, dirt, and other explosive and corrosive media that seriously affect the insulation of the load switch;
It is used in ungrounded systems and 10kV systems grounded through small resistances or arc suppression coils.
1. Are you a trading company or manufacturer ?
We are a professional factory with 10 years experience in the field of High and low Voltage switchgears, Substation, transformers, cable distribution box and various electrical equipment, such as vacuum circuit breaker, load break switch etc.
Our factory is the excellent supplier of State Grid Corporation od China.
2. Do you accept customized serveice?
We offer OEM/ODM service, can print your logo on product. our professional technical and quotation team can provice a satisfied project according to your drawing and parameters .
3. What is your MOQ?
Our MOQ is 1 piece.
4. How long is your delivery lead time?
It depends on your product requirement and quantity. Generally , 5~10 working days is avaliable.
5. How do you solve quality problems?
Please porvide detailed photoes of quality problems. our technical and quality testing department will analyse. we will make a satisfied soluton within 2 days.
6. What is your payment terms?
30%T/T in adcance, 70% before shipment. West union, L/C are also acceptable.
1. Are you a trading company or manufacturer ?
We are a professional factory with 10 years experience in the field of High and low Voltage switchgears, Substation, transformers, cable distribution box and various electrical equipment, such as vacuum circuit breaker, load break switch etc.
Our factory is the excellent supplier of State Grid Corporation od China.
2. Do you accept customized serveice?
We offer OEM/ODM service, can print your logo on product. our professional technical and quotation team can provice a satisfied project according to your drawing and parameters .
3. What is your MOQ?
Our MOQ is 1 piece.
4. How long is your delivery lead time?
It depends on your product requirement and quantity. Generally , 5~10 working days is avaliable.
5. How do you solve quality problems?
Please porvide detailed photoes of quality problems. our technical and quality testing department will analyse. we will make a satisfied soluton within 2 days.
6. What is your payment terms?
30%T/T in adcance, 70% before shipment. West union, L/C are also acceptable.
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