products detial
What we can do ? different country different requirement all we can offer.
Mid-voltage ( kV) | 3.6~35kv (E.g. 35,33,24,22,20,18,15.75,13.8,13.2,12,11,10.5,10,7.2,6.6,6.3,6 etc.) |
To Low voltage ( V) | 100-660V (E.g. 100,110,115,120,127,208,200,220,230,240,346,380,400,410,415,440,480,660 etc.) |
Frequency (HZ) | 50Hz or 60Hz |
HZW口-12 intelligent high voltage dual power supply mutual switching device
1、 Overview
HZW 口-12 intelligent high-voltage dual power supply mutual switching device the outdoor high-voltage dual power supply automatic switching device is composed of a high-voltage vacuum circuit breaker and an intelligent controller. It is applicable to the dual power supply system with AC 50Hz, rated voltage of 12 kV and rated current of 630 A. in case of power failure or undervoltage, it will automatically switch to another normal power supply, Ensure electrical continuity reliably. At the same time, it has the protection interlock function of short circuit and overcurrent, which effectively avoids the unnecessary re power supply impact in case of load failure. In case of power failure of common power supply, the switching device can complete the automatic switching of standby power supply to ensure the reliability
Reliability and safety. It can also select and switch between two power supplies according to the needs of the load. It is especially suitable for important places where power failure is not allowed. It is an important electrical control device to ensure continuous power supply. It has novel design, perfect performance, safety and reliability, high degree of automation Automatic switching and automatic recovery dual power supply automatic switching product with wide application range. The product is designed to ensure the complete isolation of two high-voltage power supplies. At the same time, it adopts perfect and reliable mechanical and electrical interlocking, so it has very high safety and reliability. The product is suitable for dual power supply power users with high requirements for power supply reliability and safety
Control and protection devices for electrical systems
The products are widely used in 10 kV power distribution lines in oil fields, mines, metallurgy, chemical industry, railways, communications, machinery and other industrial and mining enterprises.
2、 Model and description
HZW口 - 12 /口 630 - 20
20- rated short-circuit breaking current (KA)
630- rated current (a)
口 - operating mechanism form (spring T, permanent magnet ya)
12 - rated voltage (kV)
口- Design serial number
W-service conditions (outdoor)
Z-intelligent, arc extinguishing medium (vacuum)
H-mutual switching device
3、 Technical parameters
Name | Unit | Data | ||
Rated voltage | kV | 13、12、10、6 | ||
Rated insulation level | 1min Power frequency withstand voltage | Dry isolating fracture42/48 | wet 34 | |
Lightning impact withstand voltage (peak) | 75/78 isolating fracture | |||
Rated frequency | Hz | 50/60 | ||
Rated current | A | 630、1000、1250 | ||
Rated short-circuit open current | kV | 12.5、16、20、25 | ||
Rated operation order | Opening-0.3s-Closing/Opening-180s-Closing/Opening | |||
Rated current open times | Times | 30 | ||
Rated short-circuit turn-off current (peak) | kA | 31.5、40、50、63 | ||
Rated peak tolerance current | ||||
Rated short-time tolerated current | 12.5、16、20、25 | |||
Rated short-circuit duration | s | 5 (Spring）4 (permanent magnetism ） | ||
Strip time | At maximum operating voltage | ms | 30-80 | |
Rrated operating voltage | ||||
At the minimum operating voltage | 40-100 | |||
Closing time | ||||
Full break time | ≤ 100 | |||
Mechanical life | Times | 10000( spring）30000( permanent magnetism ) | ||
Switch power | J | ≤8 | ||
Rated input efficiency of the energy storage motor | w | ≤ 70 | ||
Energy storage time at the rated voltage | ms | ≤40 | ||
Rated operating voltage and auxiliary circuit rated voltage | v | DC、AC220 | ||
Overcurrent | Rated current | A | 5 | |
Unpping current accuracy | % | ±10 | ||
Net weight | kg | 254(Spring)、235( permanent magnetism ） | ||
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