Outdoor 3 Phase 3 Pole Tripolar Sf6 220kv 252kv High Voltage Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: SF6
• Installation: Fixed
• Structure: Sf6
• Model NO.: SF6-252KV
• Poles Number: 1
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: VDE, ISO9001-2000, CE, CB, CCC
• Transport Package: Wooden Package
• Trademark: JUNKE
• Origin: Wenzhou
• Production Capacity: 1000PCS/Month

Product Description

LW58 - 252KV outdoor self energy high-pressure sulfur hexafluoride circuit breaker is a three-phase ac 50 hz outdoor high voltage electric transmission and transformation equipment, By Opening or closing the rated current and fault current and conversion circuit to realizing the protection,control and operation of the power transmission and transformation system. The product can open or close brake and operate the auto reclosing very fast and realize the linkage of three pole electric.

The circuit breaker using the latest design principle, And it has much feature such as simple construction,small volume material consumption, It is necessary to the operation of the energy is small and high reliability,easy to install,low noise and so on. It is developed a new generation of high-pressure sulfur hexafluoride circuit breakerby ourselves.

 

2.2Wind pressure:≤700 pa

2.3Altitude:≤3000m

2.4Seismic intensity:≤9degrees

2.5Air polluted degree: level

3 Nominal parameter

No.	Name	Main technical parameters
1	Rated voltage, KV	220 KV, 252KV
2	Rated insulation level,kV	See table 2
3	Rated frequency,Hz	50
4	Rated current,A	2500
5	Rated short circuit breaking current,kA	40
6	Rated short-time withstand current,kA	40
7	Rated peak withstand current,kA	100
8	Rated short time continual time,s	3
9	Rated peak withstand current,kA	100
10	Short-line fault breaking current,kA	30/36
11	Rated clearing energized current,A	125
12	Rated out-of-phase breaking current,kA	10
13	Accumulative opening times of rated short circuit on power flow,time	20
14	First pole to clear factor	1.3
15	Pressure of SF6-gas(20ºC),MPa	See table 3
16	The rated voltage of control circuit and auxiliary circuit	See table 4

Single phase single pole 1GROUP=3PC



drawing