Z4 Series DC Motors

The Z4 series DC motors adopt a new design and feature a compact size, low moment of inertia, light weight, high output power, high efficiency, high reliability, and excellent safety performance. Compared with the Z2 and Z3 series motors, they have superior dynamic performance and are more suitable for use as power sources and actuating motors in control systems that require smooth adjustment, automatic speed stabilization, and sensitive response.

Customer benefits

It features high power density and a compact design

It adopts a VPI vacuum pressure impregnated F-class insulation system, which can withstand short-term overload operation

Low loss has been achieved through high efficiency

A long brush life has been achieved by using an optimized current circulation system

Copper wire drawing machines for small-scale metallurgical industries

Extruders and small internal mixers in the rubber and plastic industry

Stainless steel rolling mills

Shearing machines for the papermaking industry

Auxiliary motors for large-scale metallurgical industries, etc

1, Protection. mountine ane tvee of constructon

a. Types of protection of the whole series IP21S

b. Mounting modes comply with the State Standard GB/T997 stipulated as follows

2, 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 an air f ter. Modes of cooling for motors may be made into threetypes, namely IC06. IC17 and IC37.

a. For Z4-100-Z4-160, the blower is mounted on the non-drive side.

b.For Z4-180〜Z4-450, the blower is mounted on the drive side.

c. The required cooling air volume, air pressure and fan motor capacity areshown below: (Table 1)

*All the ventilating fan motors are of there phase, two pole, 380V.

Motors with the followinq five methods of cooling can be also ordered, but pnior consultations are needed

a. Frame size 100 up to 250 may be made into the totally enclosed, frame cooled motor (IC410).

b. Frame size 160 up to 250 may be made into the separately ventilated motor with blower mounted on its non-drive side (lC05).

c. Frame size 100 up to 200 may be made into the self cooled open motor with its own fan mounted on the shaf(IC01).

d. Frame size 160 up to 355 may be made into totally enclosed motor with internal cooling air circulation byindependent air-air heat exchanger mounted on it (IC666).

e. Frame size 160 up to 450 may be made into totally enclosed motor with independent air-Water heat ex-changer mounted on it (lC86W)

3, Standard tenminal box mounting is on the right hand side seen frin the drive end of the motor. As an alternativemounting at the top or on the left-hand side is possible on request

4, Motors, if needed, can be fitted a tacho-generator or other accessories at the non-drive end

5, Motors, when directy coupled, must use elastic or fexible couplings. The drive and driven units must be alignedwith the utmost care.

Radial torces acting on the shaft extensions (belt or pinion driver) must not exceed the values qiven in thediagrams on the sollowing pages (see Appendix 2).

Remarks;The ratings, output and speed range through feld weakening etc. Listed below are merely for referenc. For purposes of incessantlyadopting upto-date technology, the data lsted in the following table are subyect to relevw.

This series motors are found wide use for prime mover in various in various machinery, such as mill auxiliaryin metallurgical industry, metal cutting machine tool, paper-making, print textile, peinting and dyeing, cement -making, plastic extruding machine woodwork machine etc.

Outline mounting dimensions ofthe motors comply with IEC 72 Standard, except for the axial distance betweerthe mounting holes (dimension B).

Performances and technica| requirements of the motors can be checked in accordance with IEC 34-1 Standarcof the internationa Electro technica Commission, or DIN57530 Norm of the Deutsche Industrie-Norm.

The angular shape of the machine makes good use of space. The motors have laminated yokes, which meansthat when used on rectifier power supplies they can endur both current ripple and rapid current changes (oadchange) under dynamic condition. The stator design leads to high accuracy of pole spacing and consequent gooccommunication.

Motors and cass F insulated, with reliable insulating construction and impregnating process, ensuring stabledielectric performance and excellent heat dissipation.

The motors possess the features of small size. Smaller moment of inertia better dynamic charactenstice, lighweiqht, larger KW output, hiqh efficiency and reliability, being able to match the current international advanced levelThe motors can be lastingly operated from fully controlled three phase bnidge without a smoothing reactorMotors for 160V may be operated on single phase bridqe thyristor. In that case, a smoothing reaclor, whose indro-tance is specified in the re|evant technica| data, shou|d be inserted in the armature circuit to suppress rnipple cuirent.