Embedded Poles Type 12kv High Voltage Vacuum Circuit Breaker Switch

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Insert
• Structure: ACB
• Model NO.: ZN63A-12/630A
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
• Voltage: 12kv
• Electric Current: 630A
• Model: Zn63A-12kv/630A
• Transport Package: Wooden Box
• Trademark: zhuowoma
• Origin: China
• Production Capacity: 10000 Pieces / Year

Product Description

Overview:            
            Zn63 (VS1) - 12 series indoor handcart type high voltage vacuum circuit breaker is an indoor switchgear with three-phase AC 5ohz and rated voltage of 12kV. It can be used for the control and protection of industrial and mining enterprises, power plants, substations and electrical facilities, and is suitable for places with frequent operation. The operating mechanism is integrated with the circuit breaker body, which can be used as a fixed installation unit or a special propulsion mechanism to form a handcart unit. The main circuit part can adopt the integral fixed sealing pole to realize the miniaturization, high reliability and maintenance free of the circuit breaker. It can be equipped with kyn28a-12 (GZS) and other middle mounted handcart type switchgear, and the fixed type can also be used for XGN series fixed switchgear.

 Model and meaning:

The main technical parameters:

Seril number	Name		company	Data
1	Rated wltage		KV	12
2	Rated freque		Hz	50
3	Rated insulation level	Imin Power frequency withstand voltage	KA	To ground/ phase to phase 42/48
		Lightning impulse withstand voltage (peak value)		To ground/ phase to phase 75/85
4	Rated short circuit breaking current		KA	20	25	31.5		40
5	Rated current		A	630	630	1250	1600	1250	1600
				1250	1250	2000	2500	2000	2500
6	Rated short time breaking current (effective value)		KA	20	25	31.5		40
7	Rated peak breaking current (peak value)			50	63	80		100
8	Rated short circuit making current (peak value)			50	63	80		100
9	Rated short circuit current duration		S	4
10	Mechanical life		Second	20000
11	( 1min)Power frequency withstand voltage of secondary circuit (1min)		V	2000
12	Rated operation sequence			Oh-t-onoh-tl - onoh
20kA,25kA,31.5kA t=0.3s t1=180s; 40kA t=180s t1= 180s

 
Use environmental conditions:
A, ambient air temperature: upper limit +40. Lower limit-15 DEG c;
B, altitude: less than 1000m (for higher altitude, is rated insulation level increase);
C, and amplitude: the earthquake intensity is not more than 8 degrees;The daily average value of
D, and air relative humidity≤95%, and the average monthly value≤90%
E, fire, explosion, danger, serious pollution, chemical corrosion and violent vibration.

Shape and installation dimensions: