Outdoor High Voltage PM Vacuum Circuit Breaker
Introduction: High Voltage PM Vacuum Circuit BreakerMZZ (1)-12/M630-20 Outdoor High Voltage Vacuum Circuit Breaker (Recloser\Partition Slotter) is outdoor high voltage power distribution equipment of three-phase AC 50Hz 12Vrated voltage 630A-1250A rated current and 16KA-20KA rated short circuit current. It is mainly used in opening and closing load current, overload current and short circuit current in the power system. It is applied to the protection and control of the power distribution system in industrial mining enterprises as well as agriculture network and many other frequently used places.
This product has kept all reasonable parts and good performance of ZW32; it multiplies the overall mechanical life span including the arc chamber than the former model. Its life span can reach as high as sixty thousand times and thirty times free maintenance during the lifetime.
It can overextend and assembled into recloser and partition slotter which are used in distinguishing permanent failure from temporary failure. Meanwhile, bit can realize various network, protection and operation functions in accordance with different requirements of the customer by taking advantage of the powerful PM controller.
Functions and Features - High Voltage PM Vacuum Circuit Breaker
1. Computer monitoring and control devices configured with a group of 20 batteries, battery capacity can support 50 hours after blackout.
2. Adopts electronic PT, ct charge as well as ac220v charge
3. With remote control of opening and closing switch function at 30 meters distance
4. set the skipped-switch current at anytime and anywhere within a flexible range
Model Meaning
Structure Parameters - High Voltage PM Vacuum Circuit Breaker
Table One
| Order | Name | Unit | Parameter | |
| 1 | Rated voltage | KV | 12 | |
| 2 | Rated current | A | 630/1250 | |
| 3 | Rated frequent | HZ | 50 | |
| 4 | 1 min work frequency voltage tolerance | Dry test | KV | 42/49 |
| Wet test | 30 | |||
| 5 | Lightening impact current tolerance (peak value) alternated, towards the ground/fracture | KV | 75/85 | |
| 6 | Rated short circuit breaking current | KA | 20 | |
| 7 | Rated short circuit closing current (peak value) | KA | 50 | |
| 8 | Rated peak value current tolerance | KA | 50 | |
| 9 | 4S short term current tolerance | KA | 20 | |
| 10 | Rated operation cycle | Open-0.3S-close-open-180S-close-open | ||
| 11 | Rated breaking times of short circuit current | Times | 30 | |
| 12 | Mechanical life span | Times | 50000 | |
| 13 | Secondary circuit 1min work frequency voltage tolerance | KV | 2 | |
| 14 | Protective CT | Ratio | A | ( )/5 |
| Capacity | VA | 15 | ||
| 15 | Weight | kg | 100 | |
| 16 | Reclosure interval | Second | 0~50 (adjustable) | |
| 17 | Setting times of the reclosed switch | Times | 1~4 (adjustable) | |
| 18 | Start current for setting excess current | A | 20~4000 (adjustable) | |
| 19 | Delay setting for excess current | Second | 0~50 (adjustable) | |
| 20 | Immediate break started current setting | A | 20~4000 (adjustable) | |
| 21 | Rated energy storage voltage | V | DC24V AC220V | |
| 22 | Rated voltage of parted/closed switch button releaser | V | DC24V AC220V | |
| 23 | Simulated measurement error | ≤29% | ||
| Order | Name | Unit | Parameter |
| 1 | Contact openness size | Mm | 11±1 |
| 2 | Contact excess travel | Mm | 3+1.0 3-0.3 |
| 3 | Average Switch closing time | M/s | 0.65±0.15 |
| 4 | Average Switch opening time | M/s | 1.1±0.2 |
| 5 | Time differences of three-phase closing (opening) switch in the same period | Ms | ≤2 |
| 6 | Closing switch and bouncing time | Ms | ≤2 |
| 7 | Switch closing time | Ms | ≤60 |
| 8 | Switch opening time | Ms | ≤70 |
| 9 | Direct current resistance of each circuit phase | μΩ | ≤200 |
| 10 | Dynamic, stable contact allowed accumulated attrition thickness | Mm | 3 |
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Complete set switchgear-Power Control System
