VS1 Series are applicable to 10kV~40.5kV,three-phase AC 50Hz indoor switchgear.With modular and independent-frame design for their spring operating mechanisms,VS1 lateral indoor vacuum circuit breakers are subject to both fixed installation and assembly with special pushing mechanism as a handcart unit.It can be equipped with KYN and other handcart switchgear, also be used with fixed XGN switchgear.
Product Details
side mounted VS1 with embedded pole
PRODUCT INTRODUCTION
VS1-12 / 1250 high-voltage indoor side mounted vacuum circuit breaker (VCB) can operate frequently or break short-circuit current multiple times within the working current range. Its mechanical life can reach 30000 times, and the breaking times of full capacity short-circuit current can reach 50 times. The VS1 series is suitable for reclosing operation with high reliability and service life. It adopts the integration of operating mechanism and VCB body. The operating mechanism adopts the spring energy storage type, which has two functions of electric and manual energy storage. When the circuit breaker works, the energy of the energy storage spring is transmitted to the linkage mechanism through the output cam, and then to the dynamic contact mechanism through the linkage mechanism.
The VS1 side mounted VCB can be designed as a fixed installation unit or a special propulsion mechanism to form a handcart unit. It can be equipped with KYN28A-12 (GZS) and other central handcart type switchgear, or XGN fixed type switchgear.
According to different insulation structure ,The VS1 series can be divided into common insulating cylinder type and embedded pole type.
1.The common type VCB adopts vertical insulating cylinder made of insulating materials to prevent the influence of various climates, and in the aspect of maintenance, it usually only needs to clean or lubricate the operating mechanism occasionally. The conductive circuit of the main part of the common type circuit breaker is arranged in a cylindrical insulating cylinder
2.The epoxy embedded pole type VCB adopts fixed seal pole insulation (that is, through APG process, epoxy resin is used to seal the arc chamber and upper and lower outlet ends, reducing the size of the arc chamber, and improving the weather resistance and mechanical support), high service life and maintenance free. It is suitable for frequent operation under rated current in power system or places with multiple short-circuit breaking current
side mounted VS1 with common type insulation structure
CHARACTERISTICS
① Small contact opening distance: the contact opening distance of 10kV VCB is only about 10 mm, the operation work of the operating mechanism is small, the stroke of the mechanical part is small, and the mechanical life is long.
② The arcing time is short and has nothing to do with the switching current, generally only half cycle.
③ After arc extinguishing, the dielectric recovery speed of contact gap is fast, and the fault performance in the near zone of breaking is better.
④ The contact has a long electrical life, with 30-50 times of full capacity breaking and more than 5000 times of rated current breaking due to the small amount of wear during breaking current.
⑤ Small size and light weight.
⑥ Suitable for breaking capacitive load current.
Standard of circuit breaker: the circuit breaker shall meet the relevant requirements of gb1984-2003 indoor AC high voltage circuit breaker and iec62271
ENVIRONMENTAL CONDITIONS
1. The upper limit of ambient air temperature shall not be higher than + 40 ℃, and the lower limit shall not be lower than - 15 ℃ (it is allowed to store and transport at - 30 ℃):
2. When the product is used in 7.2kV system in the area with an altitude of no more than 1000m, the applicable altitude can be increased to 3000m;
3. Relative humidity: daily average value is not more than 95%, and monthly average value is not more than 90%;
4. Saturated steam pressure: the daily average value is not more than 2.2 × 103mpa, and the monthly average value is not more than 1.8 × 103mp. When the temperature drops sharply in the humidity period, condensation may occur;
5. The installation site shall be free from frequent violent vibration;
6. The surrounding air shall be free from the obvious pollution of corrosive or combustible gas and water vapor;
7. The installation site shall be dry and clean;
8. The earthquake intensity shall not exceed 8 degrees.
TECHNICAL DATA
Item
Unit
Parameter
Rated voltage
KV
12
max.operating voltage
KV
12
Rated current
A
630/1250
630/1250
630/1250
Rated short circuit breaking current
KA
20
25
31.5
Rated short current switching current
KA
50
63
80
Rated peak withstand current
KA
50
63
80
Rated short time withstand current
KA
20
25
31.5
Rated insul-ation
level
Power frequency withstand voltage
Kv
42(Fracture 48)
Impulse withstand voltage
75( Fracture 84)
Rated operating sequence
O-0.3s-CO-180s-CO
Mechanical life
times
20000
Rated frequency
Hz
50
Operating mechanism rated switch-on voltage(DC)
V
110,220
Operating mechanism rated off voltage(DC)
V
110,220
Contact opening
mm
11±1
Overtravel(Compressed length of contact spring)
mm
3.5±0.5
Three-phase switching on or off non-synchroneity
ms
≤2
Contact closing bounce time
ms
≤2
Average Switch off speed
m/s
0.9-1.2
Average switching on speed
m/s
0.4-0.8
Switch-off time
Under max. operation voltage
s
≤0.05
Under min. operation voltage
≤0.08
Switch-on time
s
0.1
Loop resistance
uΩ
60
40
Each phase loop DC resistance
mm
3
OUTLINE AND INSTALLING DIMENSIONS
Note:Above is the latral tyle of VS1-36kV
COMPANNY PROFILE
ZHEJIANG VOLCANO ELECTRICAL TECHNOLOGY CO.,LTD is an innovative manufacturer with more than 10 years experience in the field of HV&MV electrical apparatus ,specializing in manufacturing and sales of 11kV~40.5kV VCB ,LBS,isolating switch,earthing switch,GIS,RMU,AIS,as well as relative electrical components and accessories.
Our factory occupied a manufacturing square over 10000 ㎡ and has passed international ISO9001 quality management system and national CCC and CQC certification.Our products with reliable quality and resonable price,have won the trust and approval of numberous well-known domestic and foreign clients.