Audited Supplier
A. 25 years experience of production Medium voltage circuit breaker material
B. 18 years for overseas market; you no worry for communication and save time
C. IEC CNAS standard testing lab inside own property factory industrial zone
D. Big Brand trusted material supplier, you no worry for quality control
E. Quality control 3 times 100% inspection testing from raw material, to operating mechanism, to finished Vacuum Circuit Breaker.
1 of the best Medium Voltage material for power transmission and distribution private company in China
JLIAMIGO was joint venture and stand for JULI and SINOAMIGO;
Zhejiang JULI Electric Co., Ltd., start since 2000 focus on Operating mechanism, Vacuum Circuit Breaker and its recloser. So far employees more than 300, annually turn over 30 million USD, and local Medium Voltage Vacuum Circuit Breaker manufacturers 50% material by JULI in Wenzhou China;
With Big Brand, the same core material spring motor drive (operating mechanism), for your medium voltage circuit breaker and GIS switchgear;
SINOAMIGO Power T&D Co., Ltd. was initial founded in 2010, professional manufacturer for medium voltage switchgear panel, switchboard with JULI VCB etc brand Vacuum Circuit Breaker mounted.
In order to better dealing overseas EPC projects, by joint venture company: JLIAMIGO Electric Power (Yueqing) Co., Ltd.
Quality control: 3 times 100% inspection testing
(from raw material, to operating mechanism, to finished Vacuum Circuit Breaker)
1. Raw Material Inspection of Vacuum Circuit Breaker (VCB)
2. Production Line of Vacuum Circuit Breaker (VCB)
3. Production Line and Testing of Operating Mechanism (VCB key parts)
4. Test equipment as IEC standard for Vacuum Circuit Breaker (VCB)
Power frequency testing: 100% according to IEC standards;
Big current testing temperature rising equipment: provide up to 3000A;
Partial discharge testing room: provides two different size for vacuum circuit breaker and GIS switchgear panel;
Lightning withstand voltage testing equipment: were same as the CNAS authoritative third-party testing laboratory, which can provide a maximum of 300kV type test lightning voltage;
5. Warehouse for Vacuum Circuit Breaker (VCB) and its Operating Mechanism
Following 6S Management, always keep neat and clearn.
6. Exhibition and After-sales Service
7. Our Team
ZW32-12 Outdoor Vacuum Circuit Breaker
| Item | Unit | Data |
| Rated voltage | kV | 12 |
| Rated frequency | Hz | 50 |
| Rated current | A | 630 |
| Rated short circuit breaking current | kA | 12.5/16/20 |
Rated withstand current (peak) | kA | 31.5/40/50 |
| Rated short-duration withstand current (4s) | kA | 12.5/16/20 |
| Rated short circuit making current (peak) | kA | 31.5/40/50 |
| Mechanical life | Times | Spring Operation 10000/Permanent Magnetic 30000 |
Rated operating sequence | O-0.3s-CO-180s-CO | |
Breaking number for rated short-circuit current | Times | 30 |
| Power frequency withstand voltage (1min) | kV | Dry test-42/48(to ground, inter-pole/fracture) Wet test-34 |
| Lightning impulse withstand voltage (peak) | kV | 75/85 ( inter-pole/fracture) |
| Closing time | ms | 25~60 |
| Total breaking time | ms | ≤100 |
| Arcing time | ms | ≤20 |
| Rated input power of energy storage motor | W | 40 |
Rated operating voltage and auxiliary circuit rated voltage | V | DC220/110/24 AC220/110 |
Energy storage time under rated voltage | s | ≤10 |
| Rated current of over-current tripper | A | 5 |
| Item | Closing coil | Opening coil | Over-current tripping coil |
| Rated voltage (V) | 220 | 220 | |
| Rated working current(A) | AC:5 DC:3.2 | AC:5 DC:0.8 | 5 |
| Voltage and current rang under normal working | Action on 65%-110% of rated voltage | Action on 65%-110% of rated voltage avoid tripping under less than 30% of rated voltage | Action on 65%-110% of rated voltage avoid tripping under less than 90% of rated voltage |
