Explosion-proof electric chain hoist voltage transformer works like?

 Below we explain three points:
1, tap: to fit the needs of the power grid, the general has tapped transformer high side, can not fully guarantee tap sync switch, load tap so can not run in parallel.
  2, explosion-proof small electric hoist voltage transformer: primary winding turns N1, less secondary winding turns N2, the equivalent of a step-down transformer. PT at work in the primary winding and a secondary winding is connected in parallel, respectively, in the primary circuit and the secondary coil voltage control loop. So if the secondary winding shorted, will result in a very large secondary current.
3, Used / drawer: Handcart and drawers are part of the high voltage switchgear and low voltage switchgear, high voltage circuit breakers are installed and low voltage circuit breakers and relays and other components. They fixed switchgear function is basically the same, the main difference is to facilitate the proof electric hoist maintenance and repair.
Explosion-proof electric chain block can be installed separately using the word overhead beam, explosion-proof electric chain hoist can be installed on supporting electric or manual single-beam, dual-beam, cantilever, gantry cranes. Electric chain hoist, light weight, high level. Explosion-proof chain hoist better safety performance, high reliability, and low failure rate. Working low noise, overload the power, the braking force is superior.

electric wire rope hoist - Liftech component

Wire rope hoist component are: motor, transmission, drum and wire rope. Mutual position of the motor and the reel to be roughly divided into four different types.
(1) The motor axis is perpendicular to the axis of the reel hoist using worm gear, large width aspect size,small electric hoist structure, bulky, low mechanical efficiency, more difficult process. Manufacturers have no such structure type of product.
(2) parallel to the axis of the roll axis motor is an electric hoist, the advantage of a small height and length dimensions. Its disadvantage is that the large width dimension,permanent magnetic lifter of the packet, the manufacturing and assembly complexity. Track turning radius.
(3) motor mounted on the reel inside the electric hoist, the advantage of a small length size, compact structure. Its main disadvantage is that the motor cooling conditions are poor, poor grouping,lever block inspection, installation, maintenance, motor inconvenience, power supply unit complex.
(4) mounted on the outside of the drum motor hoist, the advantage is for the group is good, high degree of common, easily changing the lift height for easy installation and maintenance. Its disadvantages are: large length dimension.