GIS 72.5 -550kV

Ref Price:

Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

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 distribution network equipment: Electricity and other energy sources, its main features are: cannot be stored in large scale, power generation, transmission, distribution and consumption at the same instant

Q: Transmission system and distribution system: Simply put, you can distinguish between the end of the cable to the use of electrical equipment (motor, power box) is the distribution system to the substation, transformer is the transmission system

Q: What is the difference between power supply and distribution: Power supply and distribution is part of the use of general by the Architectural Design Institute of electrical professional

Q: What is the role of transmission system and distribution system in power grid: power plant and the load center often separated by long distances, resulting in the problem of power transmission. The power is sent to the user only hydropower area can be fully utilized by high voltage transmission line

Q: Are electric wires and cables belong to distribution equipment?: Wire rod products for the transmission of electric (magnetic) energy, information and electromagnetic energy conversion.

Q: Transmission lines are not electrical equipment?: If you are satisfied, please accept it as a satisfactory answer

Q: What is the transmission line, what is the power distribution equipment: Distribution equipment is generally referred to as the distribution lines and distribution substations (usually 35kV and below).

Q: Rural high voltage transmission line equipment ownership: You do not want to what the transformer behind the high-voltage line,

Q: Difference between distribution voltage and supply voltage: In general, the city substation will be reduced to 10KV 110KV to the electrical terminal.

Q: Power distribution equipment should be prepared before the blackout?: Before the power failure, the person in charge or the electrical appliance technician should fill in the work order.

Send your message to us

*Email

*TEL

*Quantity

*Unit