Series Z4 D-C Machines
Features and Us
Series Z4 d-c machines are newly developed products of our works. The products are found wide u for prime mover in various machinery, such as mill auxiliary in metallurgical industry, metal cutting machine-tool, paper-making, print, textile, printing and dyeing, cement-making, plastic extruding machine, etc.
Outline mounting dimensions of the motors comply with IEC 72 Standard, except for the axial distance between the mounting holes (dimension B).
Performance and technical requirements of the motors can be checked in accordance with IEC 34-1Standard of the International Electrotechnical Commission, or DIN 57530 Norm of the Deutsche Industrie-Norm.
The angular shape of the machine makes good u of space. The motors have laminated yokes, which means that when ud on rectifier power supplies they can endure both current ripple and rapid current change (load change) under dynamic condition. The stator design leads to high accuracy of pole spacing and conquent good commutation.
The motors are class F insulated, with reliable insulating construction and impregnating process, ensuring stable dielectric performance and excellent heat dissipation.
The motors posss 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 from fully controlled three-pha bridge without a smoothing reactor. Motors for 160V may be operated on single-pha bridge thyristor. In that ca, a smoothing reactor, who inductance is specified in the relevant technical data, should be inrted in the armature circuit to suppress ripple current.
TYPE DESIGNATION
Example:
Z4 – 280 –2 1 B
With compensating winding﹡
Code for endsheid﹡﹡
Code for armature core lengt﹡﹡﹡
Center height(mm)
Code for ries﹡﹡﹡﹡
﹡The letter ‘B’ stands for motor with compensating winding, only applicable to Z4-250 and Z4-280.
﹡﹡The digit 1,2 for short, and long endshield.
﹡﹡﹡As regards frame size-112, the first digit means No. of poles, the cond digit for core length.
﹡﹡﹡﹡ The letter ‘Z’ for d-c machine, the digit ‘4’ for ordinal number of the fourth ries design.
Electrical Performance
1. Data listed in the technical data sheet should be employed under the following conditions:
a. Altitude above a level maximal 1,000m;
b. Cooling air temperature maximal 40℃;
c. Ambient conditions for motors should be free from acidic, alkali fumes or other
aggressive gas which corrode insulation.
d. Duty: Continuous(S1);
e. Armature and field circuit for motors may be either operated on static thyristor controlled
supplies, or from d-c generator;
f. Performances of motors all comply with State Standard GB/T 755-“Fundamental
technical rules for electrical machines”.
2. Nominal rated voltage: 160V or 440V. Values for 220V or 440V 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.
Decrea armature voltage to make speed regulating under constant torque, lowering down field volt
age to make speed regulating at constant output. Speed regulating range: e technical data(Table 2). The given multiple of load to rated load of different speed range: e Appendix 1.
The torque can be remained constant by reducing speed via armature voltage weakening below rated value. It is stipulated that armature speed range can be down to the lowest 20r/min at constant torque and stable running.
4. Separate excitation is the basic excitation type of the motors. Nominal field voltage: 180V.
Other excitation voltages are also acceptable on request.
Forced excitation is allowed with the voltage of less than 500V. When a motor is normally running, its excitation current must not be higher than the rated excitation current must not be higher than the rated excitation current.
To assure the reliability of insulation of excitation system, the motor must be protected against lf-induced voltages by a relea resistor connected in parallel with the field winding when the excitation circuit of the motor is interrupted. At rated field voltage the value of shunt resistor is about ven times field winding resistance (cold state). While the field voltage is higher than nominal voltag
拒绝再玩e, the value of shunt resistance may be lower than ven times field resistance, otherwi higher than ven times.
5. For frame size Z4-315, Z4-355, Z4-400 and Z4-450, compensating windings are provided.
For frame size Z4-250 and Z4-280, the motors are feasible with a compensating winding too.
写友谊的句子
6. A marked earthing terminal is provided for the motors.
7. The efficiencies listed in the data sheet are for rated output, voltage and speed, and include
excitation loss, excluding that of parate ventilating fans.
Construction
1. Protection, mounting and type of construction:
a. Types of protection of the whole ries: 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 parate cooling, force ventilanted. Cooling by frame radially mounted, parately powered ventilating fan, and attached an air filter. Modes of cooling for motors may be made into three types, namely IC06, IC17 and IC37.招生话术
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 are shown below:
(Table 1)
风量 静压 ＊电动机功率
机座号
m3/h Pa kW
Z4-100 1602000.04
Z4-112 2203000.06
吉非贝齐Z4-132 3604500.18
Z4-160 7906000.37
Z4-180 1200940 1.1
Z4-200 1600800 1.1
Z4-225 28801400 3.0
Z4-250 30001400 3.0
Z4-280 40001600 4.0
Z4-315 46801600 5.5
Z4-355 52001600 5.5
Z4-400 72001800 5.5
Z4-450 900018007.5
﹡All the ventilating fan motors are of three pha, tow pole, 380V.
Motors with the following five methods of cooling can be also ordered, but prior consultations are needed.
a. Frame size 100 up to 180 may be made into the totally enclod, frame cooled motor (IC
410).
b. Frame size 160 up to 250 may be made into the parately ventilated motor with blower
mounted on its non-drive side (IC 05).
c. Frame size 100 up to 180 may be made into the lf cooled open motor with its own fan
mounted on the shaft (IC 01).
豆浆
d. Frame size 160 up to 315 may be made into totally enclod motor with internal cooling
air circulation by independent air-air heat exchanger mounted on it (IC 666).
e. Frame size 200 up to 450 may be made into totally enclod motor with independent
air-water heat exchanger mounted on it (IC 86W).
3. Standard terminal box mounting is on the right hand side en from the drive end of the motor.
As an alternative, mounting at the top or on the left-hand side is possible on request.
4. Motors, if needed, can be fitted with tachogenerator or other accessories at the non-drive end.
5. Motors, when directly coupled, must u elastic or flexible couplings. The drive and driven
units must be aligned with the utmost care.
Redial forces acting on the shaft-extensions (belt or pinion drive) must not exceed the values given in the diagrams in the following pages (e Appendix 2).
Motors are of compact structure, elegant appearance, spacious terminal box, easy wiring, rvicing and maintenance.
Remarks:
The ratings, output and speed range through field weakening etc. listed below are merely for reference. For purpos of incessantly adopting up-to-date technology, the data listed in the following table are subject to relevant change.
注册制Catalogues will be nt on application.
古诗四年级Notice on Order
1. Plea refer to our catalogue before ordering. If the types, ratings you need are not covered by our booklet plea contact us. Should you have particular needs, plea offer us specific proposal in advance. A contract or pilot production agreement may be made when the requirements are fixed by common connt.
2. Plea write clearly the type, output, voltage, speed, duty, type of construction, excitation, field voltage, No. of shaft-end, location of terminal box, necessary accessories and spare parts etc.
3. If the humid-tropical type required, plea mark “TH” behind the original type No.
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