Zn63s (VS1)

Basic Info.

Model NO.	ZN63S (VS1) - 12
Transport Package	Export Box
Trademark	DGG
Origin	China
HS Code	8504311000
Production Capacity	100000PCS/Year

Product Description

GENERALZN63S (VS1) - 12 series indoor high-voltage vacuum circuit breakers (hereinafter referred to as "circuit breakers") are indoor high-voltage switchgear with a rated voltage of 12kV and three-phase AC 50Hz. They are used as protection and control units for power grid equipment and power equipment of industrial and mining enterprises. It is applicable to places requiring frequent operation under rated working current or breaking short-circuit current many times.The circuit breaker complies with technical standards such as GB / T1984 - 2003 and DL / T402 - 2007.
MODEL DESCRIPTIONZ: Vacuum Circuit BreakerN: Indoor63: Design Serial NumberS: Three Phase12: Rated Voltage
FUNCTIONAL FEATURES
☆ High service life: the mechanical life is 30000 times, the number of full capacity short-circuit current interruptions are 50 times, and frequent operation or multiple circuit current interruptions can be carried out within the working current range.☆ Commercial reliability: it is suitable for reclosing operation with various characteristics and can be used instead of imported VD4.☆ Full working condition: vertical insulating cylinder is used to prevent various special environmental impacts.☆ Maintenance-free: adopt solid insulation structure to integrate solid sealing pole.☆ Complete functions and multiple uses: it can be installed in a fixed manner, can also be moved for use, and can also be installed on the frame.☆ Standardized design: good interchangeability and versatility, especially suitable for kyn28 (gzs1) indoor central high-voltage switchgear..
MAIN TECHNICAL PARAMETERS

No.		Item		Unit	Data
1		Rated frequency		kV	12
2		Rated Insulation Level	1 min Power Frequency Withstand Voltage (effective value)		45 (Fracture 48)
			Lightning Impulse Withstand Voltage		75 (Fracture 85)
3		Rated Frequency		Hz	50
4		Rated Current		A	630, 1250
5		Rated Short-Circuit Breaking Current		kA	20;25 31.5 40
6		Rated Short-Circuit Closing Current (Peak Value)		kA	50;63 80 100
7		Times of Rated Short-Circuit Breaking Current		Times	50, 30
8		Rated short-time withstand current and duration		s	4
9		Mechanical Lifespan		Times	30000
10		Rated Operating Order			O-0.3S-C0-180S-CO
11		Rated Short-Circuit Breaking Current Breaking times		Times	50
12		Operating Mechanism Rated Closing Voltage		V	AC110/220 DC110/220
13		Operating Mechanism Rated Opening Voltage		V	AC110/220 DC110/220
14		Contact Distance		mm	11 +/- 1
15		Overtravel (crimping length of contact spring)		mm	3(+1.0, -0.5)
16		Three Pole Closing and Opening Non-synchronism		ms	≤2
17		Contact Closing Bounce Time		ms	≤2
18		Average Opening Speed		m/s	0.9 ~ 1.3
19		Average Closing Speed		m/s	0.4 ~ 0.8
20		Opening Speed		ms	20 ~ 50
21		Closing Speed		ms	30 ~ 70
22		Main Circuit Resistance		μΩ	≤50, ≤35
23		Allowable Wear Cumulative Thickness of Moving and Stationary Contact		mm	3
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate.

OUTLINE AND INSTALLATION DIMENSION