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
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.
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
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