GIS 72.5 -550kV
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Specifications
80% of the power frequency withstand voltage
the leak rate is low
high operating reliability
good safety performance
Introduction :
Release time :
2012-8-22 Product Description: Product role With 72.5 ~ 550kV GIS Current Transformer, sulfur hexafluoride gas insulation, mainly used in power systems power measurement, current measurement and relay protection.
Product structure
Features
1, insulation stable: 80% of the power frequency withstand voltage under the partial discharge amount not greater than 5pC.
2, the leak rate is low: annual leakage rate of less than 0.3%, far better than the 1% of the requirements of the GB.
3, high operating reliability: pressure SF6 gas zero table, safe operation can be a long time.
4, good safety performance: explosion-proof device with excellent explosion-proof performance.
5, high precision: measurement up to meet the 0.1 level.
6 protection: protect the winding core of high permeability and saturation flux density is high (greater than 1.8T).
Technical parameters
Type | L (S) R-72.5 | L (S) R-126 | LR-220 | LR-500 | ||
The devices rated voltage, kV | 66 | 110 | 220 | 500 | ||
The * Device highest voltage, kV | 72.5 | 126 | 252 | 550 | ||
Rated frequency Hz | 50-60 | |||||
* Short-time power frequency withstand voltage, kV | 160 | 230 | 460 | 740 | ||
* Lightning impulse voltage, kV | 350 | 550 | 1050 | 1675 | ||
Partial discharge level (1.2Um / √ 3) | <5pC | |||||
* Rated current, A | 300-300 | 300-300 | 300-4000 | 600-5000 | ||
* Rated secondary current, A | 5 or 1. | 1 | ||||
* Accuracy class (subject combinations) | 0.2S; 0.2; 0.5S; 0.55P; 10P | |||||
* Rated output, VA | 15-50 | 15-50 | 10-50 | 10-30 | ||
Safety factor, FS | 5 or 10 | |||||
* Accuracy Limit Factor, ALF | 10-40 | |||||
Short-term thermal stability current, kA / s | 40/3 | 40/3 | 31.5-63 / 3 | 50-63/3 | ||
Rated dynamic current, kA | 100 | 100 | 80-125 | 125-160 | ||
SF6 rated pressure (20 ° C), Mpa | 0.4 | |||||
A SF6 Buqi pressure (20 ° C), Mpa | 0.35 | |||||
SF6 gas leakage rate,% | <0.3 | |||||
SF6 moisture content, μL / L | <150 |
- Q: What are the two power distribution equipment?
- The two equipment is the equipment for the control, protection, monitoring and measurement of the work of the primary equipment.
- Q: What are the distribution network equipment
- The transmission function of the power plants issued by the electricity to power consumption areas, or between adjacent grid power to send each other
- Q: DC transmission equipment
- Simply put, DC screen is to provide stable DC power supply equipment.
- Q: What is the power equipment in the distribution room?
- which is mainly used for the distribution of the electric energy of the low-voltage users, and the utility model is provided with a medium voltage input line (a small number of outlets)
- Q: What is the difference between power supply and distribution
- The problem is you estimate from the injection test out the electric power, is the power system of power plant and the national grid is responsible for part of the design, the design of power plant and power lines, its design must be designed by a qualified electric power design institute
- Q: Distribution system equipment classification
- The equipment can be used not only in the iron and steel industry, but also in the chemical and metallurgical industries
- Q: High and low voltage distribution equipment
- Low voltage distribution equipment: low voltage distribution panel, switch cabinet, switch board, lighting box, power box and motor control center.
- Q: Transmission lines are not electrical equipment?
- Transmission lines are not electrical equipment? The answer is: the device is a function of the assembly
- Q: Rural high voltage transmission line equipment ownership
- the transformer can be what, look at the role of electrical appliances can be
- Q: CHINT group in the transmission and distribution equipment to do it?
- Really is the leader in the domestic electrical industry!
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GIS 72.5 -550kV
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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