Explosion-proof electric rope hoist is our latest design and manufacturing standards of proof lifting equipment, the proof in the form of "flameproof"
Explosion-proof electric hoist, explosion exposed parts of the hoist with a special non-sparking material, explosion safe and reliable performance. Products through the Ministry of Machinery Industry Explosion Protected Electrical Products Quality Supervision and Inspection Center for Explosion Jiamusi sub-center performance testing, and presented proof certificate.
Explosion-proof electric hoist is a small light lifting equipment, explosion-proof electric hoist light weight, small size, lifting capacity, when the plant is filled with an explosive mixture, under the premise of ensuring safety is to improve working conditions, improve labor productivity powerful tool is the production of the necessary equipment.
Explosion-proof electric hoist's internal structure and its effects:
1, tap: electric
manual hoist suitable for grid operation is required, generally have a high-voltage side of the transformer taps, can not fully guarantee tap synchronous switching, so there can not load tap running in parallel.
2, the voltage transformer: primary winding turns N1 much less secondary winding turns N2, equivalent to a step-down transformer. PT at work at the primary and secondary windings are connected in parallel, respectively, in the primary circuit and the secondary voltage control loop coil. Therefore, if the secondary winding is short-circuited, will result in very large secondary current.
3, Used / drawer: Handcart and drawers are high voltage switchgear and low voltage switchgear part,lever hoist were installed high voltage circuit breakers and low voltage circuit breakers and relays and other components. They fixed switch function is basically the same, the main difference is to facilitate the maintenance and repair.