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1. General Description
VS1-12 (ZN63A) type indoor medium voltage vacuum circuit breaker is used as protection and control unit of three-phase AC indoor medium voltage switchgear and industrial and mining enterprise power device of 50Hz and rated voltage up to 702-12kV. This product comply with GB1984 AC High Voltage Circuit Breaker,
JB3855 3.6~`40.5kV Indoor AC HV Vacuum Circuit Breaker,
DL/T403 Specification of 12-40.5kV Indoor High Voltage Vacuum Circuit Breaker,
IEC60694, IEC62271-100
Through combing the spring operation mechanism with circuit breaker body as an integration , this circuit breaker not only be used as fixed installation unit, but also as hand cart unit through equipped with truck.
2. Working Environmental Conditions
l Altitude not exceeding 1000m
l Ambient temperature: -15°C~+40°C
l Ambient humidity: daily average relative humidity not exceeding 95%
monthly average relative humidity not exceeding 90%
l The place for working shall be free from dropping water, fire disaster, explosion risk, severe pollution, chemical corrosion and fierce vibration.
3. Technical Data
Code | Item | Unit | Data |
1 | Rated voltage | kV | 12 |
2 | rated frequency | Hz | 50 |
3 | Rated lighting impact withstand voltage(peak value) | kV | 75 |
4 | power frequency withstand voltage (1 min) | kV | 42 |
5 | Rated current | A | 630 630 1250 1250 1250 1600 |
6 | Rated short-circuit breaking current | kA | 20 25 31.5 |
7 | Rated short-time withstand current (virtual value) | kA | 20 25 31.5 |
8 | Rated peak withstand current (peak value) | kA | 50 63 80 |
9 | Rated short-circuit making current (peak value) | kA | 50 63 80 100 |
10 | Duration of rated short-circuit current | s | 4 |
11 | Rated operating order | O-0.3-CO-180s-CO O-180s-CO-180s-CO | |
12 | Rated breaking current of single/symmetrical capacitor bank | A | 630/400 (40kA:800/400) |
13 | Rated making surge current of capacitor bank | kA | 20 (frequency:4250Hz) |
14 | Contact clearance | mm | 11±1 |
15 | Contact travel | mm | 3.5±0.5 |
16 | Bounce time of contact making | ms | ≤2 |
17 | Out of simultaneity of three-phase making and breaking | ms | ≤2 |
18 | Average breaking speed | m/s | 0.9~1.2 |
19 | Average making speed | m/s | 0.5~0.8 |
20 | Breaking time (rated voltage) | ms | 20~50 |
21 | Making time (rated voltage) | ms | 35~70 |
22 | Rated operation voltage of making and breaking | V | AC110/220, DC110/220 |
23 | Rated voltage of energy storage motor | V | AC110/220, DC110/220 |
24 | Rated Power of energy storage motor | W | 70, 100 (40kA) |
25 | Energy storage time | s | ≤15 |
26 | Permitted abrasion thickness of moving and fixed contacts | mm | ≤3 |
27 | Rebound amplitude of contact breaking | mm | ≤2 |
28 | Main circuit resistance | 630A ≤50µΩ 1250A ≤45µΩ |
Indoor Medium Voltage Embedded Pole Vacuum Circuit Breaker(VCB) VW1-12 abb vcb VS1-12/630-20-210