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motor DC ZZJ-800

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DC ZZJ-800
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Characteristic and use: 
 ZZJ-800 motors are a kind of DC motors used for metallurgy & hoisting, available for steel rolling machine, crane, elevator and electric excavator etc.
The motors have lower moment of inertia(GD), higher overload capacity, and quicker speed response so that it is possible to undergo frequent starting, braking, and repeated change of direction of rotation. Moreover, the motors are reliable, perform well in speed regulating, and can be operated suitably on thyristor continuerolled supplies.
The sturdy unitary round frame structure is highly resistant to shock impact. All the windings are vacuum pressure impregnated with class F insulation, to form an integral construction with the laminated cores, ensuring high dielectric stability and excellent heat dissipation. Besides, the connection between armature winding and segment risers is employed by TIG welding (inert gas tungsten are welding), thereby improving the electro-mechanical reliability.



Electrical machinery performance:


Basic type of construction is horizontal foot-mounted and 2 shaft-ends which are 1:10 tapered. Terminal box is located at the right side of motor viewed from the main drive end.
Rating, performance and outline mounting dimension all conform to the standard of IEC publication 34-13(edition 1980) Specification for mill auxiliary motor, and national standard GB5227 Specification for mill auxiliary D.C motor.
Modes of protection and cooling have 6 kinds:
1. Totally enclosed, self-cooling. IP44、IC410
2. Drip-proof, force ventilated with built-on blower. IP23S、IC06
3. Drip-proof, single pipe ventilated. IP23S、IC17
4. Totally enclosed, double pipes ventilated. IP44、IC37
5. Drip-proof, self-ventilated. IP23S、IC01
6. Totally enclosed, force ventilated with air-to-water heat exchanger. IP44、IC86W(only for ZZJ-806-818). It may also be made into other different types on request.




Structure synopsis:





1.Please refer to our catalogue before ordering. If thetypes,rating you need are not covered by our booklet,please contact us.Should you have specific needs,please offer us clear and concrete proposal in advance.A contract or pilot production agreement may be made,if the particular requirements are fixed by mutual consent.
2.Please write clearly the type,output,voltage,speed,excitation,exciting voltage,duty-cycle,type of construction, NO.of shaft-end,location of terminal box,direction of rotation,as well as agreement NO.name and quantity of necessary accessories and spare parts etc. Orders for other districts or for overseas are delivered with packaging,but orders for Shanghai region are generally without packaging(the packing fee being deducted).
3.If the orders for export need foreign language operating instruction, please specify when ordering.To match the advanced technology and raise the
4.quality control as well as economic and technical factors so as to meet the increasing needs of our customers,this booklet is subject to relevant change without notice. If our literature does not answer all of your questions please contact us.

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