1. Function
This series mine explosion-proof type high voltage vacuum distribution device is applicable
in AC 50Hz circuit with rated voltage of 10kV,6kV or 3.3kV and rated current of 630A for
control and protection of power network in underground coal mines with explosive and
dangerous gas(methane) and coal dust, and it can also be used for non-frequent start of big
capacity motor. The device is classified as a,b,c,d four connection modes to meet different
connection modes of inter connection mode of interconnection console, integrated console,
direct start and so on. The circuit breaker is classified as spring energy storage mechanical
type and permanent magnetism type.
2. Characteristics
2.1 Real-time English display for each kind of work data with simple and straightforward
parameter setting.
2.2 Standard Rs485 communication interface.
2.3 Various kinds of protective functions for overload, short circuit, under voltage, over
voltage, loss of phase, electric leakage, three-phase imbalance etc.
2.4 Two kinds of circuit breaker is selective , namely, permanent magnetism and spring
energy storage mechanical type.
2.5 Two switching-on modes of electrical switching on and manual switching on (spring
energy storage mechanical type).
2.6 Draw-out structure of cassette mechanism trolley, which is quite convenient for
installation and maintenance.
CHANGCHENG Group, mainly engaged in circuit breaker, AC contactor, starters, relays, instruments, switches, fuses low voltage products and transformer, whole set cabinet etc high voltage products. By now, our company has developed into one of the largest trans-regional, conglomerate and trans-national enterprise on scale and developing potentiality.
Our main lines now include high-low voltage appliances, complete sets, highway guardrail, electronic controlling equipment, vessel manufacture, and lighting etc, With an annual throughput value of 20 billion Yuan. Furthermore, having received the ISO9001, ISO14001, OHSMS 18001, UL, VDE, TSE, CB, CCC certificate for various product series, besides that all our products have been undertaken by People's Insurance Company of China on quality responsibility. And also our products have been approved as the well-known trademark of China, we are now achieving high sales shares in markets worldwide.
We welcome both new and existing customers to come take a look at our current line up and hope that you will choose our brand of competitively priced quality products. Please feel free to send us your inquiries and we will be happy to answer any questions you may have.
