| Customization: | Available |
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| Certification: | VDE, CCC, ISO9001 |
| Shell Material: | Stainless Steel |
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Our factory
We are professional manufacturer of current transformer ,voltage transformer, Vacuum Circuit Breakers/Recloser,Isolation switches,Dropout Fuse Cut-out,Lightning Arresters,High and Low Voltage Cabinets,Metering Devices,Power Distribution Transformers etc.
Product Features
YN28A-12 Armored removable AC metal closed switchgear
This equipment is indoor metal armored with drawable switchgear (hereinafter referred to as switchgear). It is a complete power distribution device of 3.6-12KV three-phase AC 50Hz single bus and single bus segmented system, mainly used in power plants. Small AND medium-sized generators, power distribution of industrial and mining enterprises, as well as the secondary substation of the electric system, power receiving, power transmission and large high voltage motor starting. For the purpose of control protection and monitoring, the switch equipment meets IEC298, GB3906 and other standard requirements. It has the interlocking function of preventing the push-pull circuit breaker hand car with load, preventing the mistake of splitting and closing the circuit breaker, preventing the grounding switch from closing the circuit breaker when the grounding switch is in the closed position, preventing it from entering the live chamber, and preventing the mistake of closing the grounding switch when the power is live. It can be equipped with VS1 vacuum circuit breaker, and it is a kind of performance distribution device.
| sports event | unit | |||||
| Rated voltage | kV | 7.2,12,24 | ||||
| Rated frequency | Hz | 50 | ||||
| Rated current | A | 630,1250,1600,2000,2500,3150,4000 | ||||
| 4S Thermal stability current | kA | 16,20,25,31.5,40,50 | ||||
| Rated dynamic stability current (peak) | kA | 40,50,63,80,100,125 | ||||
| Rated short-circuit breaking current | kA | 16,20,25,31.5,40,50 | ||||
| Rated short-circuit closing current (peak) | kA | 40,50,63,80,100,125 | ||||
| Rated insulation level 1min frequency withstand voltage | kV | 32 42,65 | ||||
| kV | 60,75,125 | |||||
| Rated operation sequence | 0-0.3S-C0-180S-CO | |||||
| Rated short-circuit breaking current | the second | 50 | ||||
| Mechanical life time | the second | 20000 | ||||
| Contact opening distance | mm | 11±1 | ||||
| Overtravel | mm | 4±0.5 | ||||
| Centre distance between phases | mm | 210,275 | ||||
| Bouncing time of closing contact | mS | ≤2 | ||||
| Three-phase switching non-simultaneous | mS | ≤2 | ||||
| Breaking time (when operating force is applied) Max. | ms | ≤50 | ||||
| ms | ≤50 | |||||
| ms | ≤60 | |||||
| Closing time | ms | ≤100 | ||||
| Average opening speed | m/s | 0.9~1.2 | ||||
| Average closing speed | m/s | 0.6~0.8 | ||||
| protection class | P4X(When the breaker compartment door is openIP2X) | |||||
Our credentials are bolstered by the acclaimed ISO certification . Additionally, we possess an extensive collection of diverse type test reports that exemplify the unparalleled quality and reliability of our products.
Q1: Are you a trading company or manufacturer ?
A1: We are a professional factory with 7 years experience in the field of high and low voltage power transformers, substation, vacuum circuit breaker, power equipment.
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