Audited Supplier
Vsg1-12
High Voltage Circuit Breakers
Electric Type
Normal Type Circuit Breaker
Vacuum
Withdrawable
Vcb
3 Pole
Circuit Breaker
Short-Circuit
ISO9001-2000, CCC
JI CHENG
Export Wooden Case
Wen Zhou
8535210000
Product Description
Product Description
VSG1-12 Vacuum Circuit Breaker, Indoor type
1.General
1.1 Ratings:rated voltage 12KV, rated current 630A~1250A, AC50HZ
1.2 Application: for the control and protection of substation and equipments; making and breaking short-circuit current under various operating status of electric network.
1.3 Standard: IEC62271-100
2. Type and Interpretation
3. Working condition
3.1 Ambient air temperature: -25~40ºC
3.2 Altitude:≤2000m
3.3 No operating in such as subject to dust, dirt, smog, corrosive/flammable gas, vapor and salt pollution.
3.4 Humidity: Daily average value ≤95%
Monthly average value ≤90%
3.5 Water vapor pressure: Daily average value ≤2.2Kpa
3.6 The external shocking and earthquake could be neglected.
3.7 The amplitude of electromagnetic interference in the secondary system ≤1.6KV
Note: Customized products are available on your requirements.
4.Main technical parameter
5.Overall and Installation Dimension
5.1 overall and installation dimension of fixed type circuit breaker
Alternative parameters table1
Alternative parameters table2
1.General
1.1 Ratings:rated voltage 12KV, rated current 630A~1250A, AC50HZ
1.2 Application: for the control and protection of substation and equipments; making and breaking short-circuit current under various operating status of electric network.
1.3 Standard: IEC62271-100
2. Type and Interpretation
3. Working condition
3.1 Ambient air temperature: -25~40ºC
3.2 Altitude:≤2000m
3.3 No operating in such as subject to dust, dirt, smog, corrosive/flammable gas, vapor and salt pollution.
3.4 Humidity: Daily average value ≤95%
Monthly average value ≤90%
3.5 Water vapor pressure: Daily average value ≤2.2Kpa
3.6 The external shocking and earthquake could be neglected.
3.7 The amplitude of electromagnetic interference in the secondary system ≤1.6KV
Note: Customized products are available on your requirements.
4.Main technical parameter
| Item | Unit | Data |
| Rated voltage | KV | 12 |
| Rated 1min power frequency withstand voltage(vacuum open contacts) insulation Lightening impulse withstand voltage(vacuum open contacts) level | KV KV | 42 75 |
| Rated frequency | HZ | 50 |
| Rated current | A | 630,1250 |
| Rated short-time withstan current | KA | 16,20,25, 31.5 |
| Rated withstand current(peak) | KA | 40,50,63 |
| Rated short-circuit breaking current | KA | 16,20,25 |
| Rated short-circuit making current | KA | 40,50,63 |
| Rated duration of short-circuit | S | 4 |
| Rated operating sequence | O-0.3S-CO-180S-CO | |
| Mechanical life | M2 class(30000times) | |
| Rated voltage of operating power | AC 220/DC 220 | |
| Full breaking time | ≤70 | |
| Electrical life | E2 class |
5.1 overall and installation dimension of fixed type circuit breaker
Alternative parameters table1
| Rated voltage | Rated current | Rated short-circuit | P | A | B | D |
| KV | KA | breaking current, KA | mm | mm | mm | mm |
| 12 | 630,1250 | 20,25,31.5 | 150 | 20 | 410 | 450 |
| Rated voltage | Rated current | Rated short-circuit | P | A | B | C | D | W |
| KV | KA | Breaking current, kA | mm | mm | mm | mm | mm | mm |
| 630 | 20,25 | 35 | ||||||
| 12 | 630,1250 | 20,25,31.5,40 | 150 | 494 | 456 | 490 | 502 | 49 |
| Series Number | Symbol | Name | Remark |
| 1 | YQ-Y9 | Indirect over-current release | Chosen element |
| 2 | Y1-Y4 | Rectifier element | |
| 3 | KO | Inner mechanism anti-jumping relay | |
| 4 | P | Handle operation mechanism | |
| 5 | Y1 | blocking eletromagnet | Chosen element |
| 6 | HQ | Closing release | |
| 7 | TQ | Breaking release | |
| 8 | M | Energy storing engine | |
| 9 | S9 | assistant switch used at operation position | |
| 10 | S8 | assistant switch used, at test positin | Chosen element |
| 11 | S2 | Blocking electromagnet assistant switch | |
| 12 | S1 | Inching switch for energy storing | |
| 13 | QF | assistant switch of breaker contact |
Performance parameters
Product overview
In recent years, with the increasing mobility of the population, the hot season, and distribution transformers in rural areas during the Spring Festival period of severe overload short run problem of rural electricity appears. In order to solve such problem of electricity, the company response to the State Grid Corporation of China in recent years advocated actively develop rural power distribution transformers and high overload capacity application work, we developed a high overload capacity distribution transformers.
High overload capacity integrated rural power distribution transformer station area based on typical load characteristics, high overload distribution transformer overload performance will meet the 1.5 times the rated capacity of six hours, 1.75 times the rated capacity of 3 hours, 2.0 times the rated capacity of one hour of continuous operation stage design requirements, and does not affect the normal life of the
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