Mining flameproof vacuum electromagnetic starter

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Feature Mainly suitable for explosive dangerous gas (coal mine methane and coal dust mixture), in 380, rated voltage 380 v, rated frequency 50 hz, rated current 200 a three-phase ac neutral point grounding power system directly, the flameproof three-phase squirrel-cage motor start, stop, and reverse control directly. Starting equipment is pressure, over voltage, short circuit, overload, open phase, leakage blocking protection, etc 1.Starter USES three pole vacuum contactor, main contact seal in the vacuum switch tube, no maintenance, with arc not exposed, suitable for frequent operation, less wear of main contact, electrical life is long, safe and reliable characteristics 2.Starter used in the left off, commutation action is reliable, and has improved the arcing cover, arcing effect is good 3.Have the function of the local and remote control motor starting stop, with comprehensive JDB type motor protector realizing overload, short circuit and leakage, phase locking protection Parameter Model Rated operational voltage V Rated operational current A   By controlling the maximum power of the machine KW Control circuit voltage V Contactor ultimate breaking capacity A   Isolate the reversing switch breaking capacity A   380V 660V 1140V QBZ-30 380 660 1140 30 15 25 45 36 2000 2000 QBZ-60 60 30 50 90 (3) (3) QBZ-80 80 40 68 118 2500 2500  QBZ-120 120 59 103 178 (3) (3)  QBZ-200 200 99 172 296 4500 600  QBZ-400 400 200 315 630 (3) 3

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jining hengwang mining machinery co,ltd

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