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Z4 series electric dc motor

Z4 series electric dc motor

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Series Z4DC machines are newly developed products of our works. The products are found wide use for prime mover in various, sucb as mill auxilinry in merallurgical induetry, metal cutting machine-tool, paper making, print, textile, printing and dyeing, cement-making,plastic extruding machine, etc.
Outline and mounting dimensions of the motors comply with IEC72 Standard, except for the axial distance between the mounting holes (dimension B).

The motors are class F insulated, with reliable insulating construction and impregnating process, cnsuring stable dielectric performance and excellent heat dissipation.
The motors possess the features of small size, good performance, light weight, large output, high efficiency and reliability, being able to match the current international advanced level.

The motors can be lastingly operated form fully controlled three-phase bridge without a smoothing reactor.


1. Data listed in the technical data sheet should be employed under the following conditions;
a. Aitirude above sea level maximal 1,000m;
b. Cooling air remperature maximal 40°C;
c. Ambient conditions for motors should be free from acidic, alkali fumes or other aggressive gasea which corrode insulation.
d. Duty: Continuous (SI);
e. Armature and field circuits for motors may be either operated on static thyrisier controlled supplies, or from d-c generator;
f. Performances of motors all comply with State Standard GB755. Fundamental technical rules for electrical machines.
2. Standard rated voltage: 160V or 440V, Values for 220V, 400V, and 660V or other voltage may be derived on request.
3. Rated speed:
3000,1500,1000,750,600,500,400,300 and 200 r/min, totally nine grades. Decrease armature voltage to make speed regulating under constant torque, lowering down field voltage to make speed regulating at constant output. Speed regulating range: see technical date .
4. Separate excitation is the basic excitation type of the motors. Nominal field voltage: 180V.
Other excitation voltages are also acceptable on request.

5 . A marked earthing terminal is provided forth motors.


Structure synopsis

1.Protection, mounting and type of construction:
a. Type of protection of the whole series: IP21S
b. Mounting modes comply with the State Standard GB/T997 stipulated as follows:
Methods of Cooling

Modes of cooling for all the motors are separate cooling, force ventilated. Cooling by frame radially mounted, separately powered ventilating fan, and attached with an air filter. Modes of cooling for motors may be made into three types, namely IC06, IC17 and IC37.



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