Wound Type Induction Motor

Compliant with IEC 60034 standards, the Wound Type Induction Motor is a professional slip-ring asynchronous motor for heavy industrial transmission.

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Product Introduction

Shenyang Electric Machine Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of wound type induction motor in China. As we have world-leading production equipment and strong manufacturing capabilities, we warmly welcome you to buy premium wound type induction motor at competitive price from our factory. Also, quotation is available.

This series of wound type induction motors covers standard frame sizes from H355 to H1120, with power range covering 160kW to 5000kW. It supports global mainstream 50Hz/60Hz frequency and low/high voltage customization including 380V, 660V, 6kV and 10kV. The whole machine adopts optimized double-layer short-distance distributed winding structure, with winding distribution coefficient optimized above 0.92, which effectively suppresses harmonic magnetomotive force and reduces additional operational loss. Equipped with F/H class insulation system and IP54/IP55 dustproof and waterproof protection grade, it adapts to S1 continuous operation and S3 intermittent cycle operation.

Selection Guide

Parameter Item	Parameter Details
Product Series	DGAM - WA / WW Subseries Motor
Application Industries	Metallurgy / Mining / Construction Materials
Applicable Standards	IEC
Frame Range	H355 - H1120
Power Range	185 kW - 20000 kW
Rated Voltage	380 V / 3 kV / 6 kV / 10 kV
Applicable Frequency	50 Hz / 60 Hz
IP Rating	IP 54 / IP 55
Mounting Method	IM B3
Cooling Method	IC 611 / IC 616 / IC 81W / IC 86W
Bearing Type	Rolling bearing / Sliding bearing
Insulation Class	F / H
Rotor Type	Wound Rotor

Product Characteristic 1 / Product Characteristic 2
Product Characteristic 1	Designation Explanation				Product Characteristic 2			Designation Explanation
HR	Rib-cooled				E4			IE4
BO	Box-type Open				E3			IE3
BA	Box-type Air-cooled				E2			IE2
BW	Box-type Water-cooled				VF			Variable Frequency
WO	Wound rotor Open				V			Vertical Mounting
WA	Wound rotor Air-cooled				PB			Pedestal Bearing
WW	Wound rotor Water-cooled
SP	Special
Cooling Method
Product Characteristic	No.	Cooling Method		Product Characteristic	No.	Cooling Method		Product Characteristic	No.	Cooling Method
HR	1	IC411		WO	1	IC01		SP	411	IC411



	6	IC416			6	IC06			416	IC416


BO	1	IC01		WA	1	IC611			1	IC01

	6	IC06			6	IC616			6	IC06

BA	1	IC611			66	IC666			611	IC611

	6	IC616		WW	1	IC81W			616	IC616

	66	IC666			6	IC86W			666	IC666

BW	1	IC81W							81	IC81W

	6	IC86W							86	IC86W
									37	IC37
Frame Size
LV(Low Voltage‌) ≤ 1000 V			MV(Medium Voltage) 1120 V ~ 6600 V			HV(High Voltage) 10000 V ~ 13800 V


80	315		355			355
90	355		400			400
100	400		450			450
112	450		500			500
132	500		560			560
160	560		630			630
180	630		710			710
200	--		800			800
225	--		900			900
250	--		1000			1000
280	--		1120			1120
Speed Grade
Poles	Synchronous Speed			Poles	Synchronous Speed		Poles		Synchronous Speed
2	3000 rpm			10	600 rpm		18		333 rpm
4	1500 rpm			12	500 rpm		20		300 rpm
6	1000 rpm			14	428.5 rpm
8	750 rpm			16	375 rpm

Product Technology

1. Optimized Stator and Rotor Winding Process: The stator adopts formed coil integral winding structure, while the rotor applies wave winding and lap winding hard winding technology. All coils use high-purity oxygen-free copper bars with uniform wire diameter and compact arrangement.

2. VPI Vacuum Pressure Impregnation Process : The whole winding undergoes integral solvent-free VPI vacuum pressure impregnation and gradient high-temperature curing treatment. The insulation glue fully penetrates every gap of the winding, forming an integrated insulation protective layer.

3. High-Precision Slip Ring Processing Technology: The slip ring adopts integral copper alloy forging molding, processed by precision turning and mirror polishing. The circular runout is strictly controlled within 0.05mm, matching high-density wear-resistant graphite carbon brushes.

4. Rigid Structural Calibration Process: The cast iron frame is treated with secondary stress-relief annealing to eliminate internal residual stress caused by machining.

5. Strict Factory Testing Process: Each finished motor passes inter-turn pulse voltage test, insulation withstand voltage test, no-load running test and full-load temperature rise test.

Working Principle

When three-phase AC is supplied to stator windings, a rotating magnetic field is generated in the motor air gap.
The rotating magnetic field cuts the three-phase symmetrical rotor windings, inducing electromotive force and rotor current.
Different from squirrel-cage motors, the rotor windings have no internal short-circuit. They are led out via slip rings and carbon brushes to external control circuits.
External resistors or liquid rheostats are connected to the rotor circuit, which reduces starting inrush current and raises starting torque for heavy-load startup.
After startup, rotor terminals are short-circuited. The motor operates under high-efficiency asynchronous condition for continuous running.

FAQ

Q1: Why does it need more regular maintenance than cage motors?

A1: Equipped with slip rings and carbon brushes, it requires regular cleaning of carbon dust and brush wear inspection to ensure stable electrical contact.

Q2: Can it work with frequent start-stop conditions?

A2: Yes. The optimized rotor winding structure adapts to frequent start-stop and impact load working conditions with stable operation.

Q3: What standards does the motor comply with?

A3: Manufactured and tested in strict accordance with IEC 60034 international standards, with reliable quality and universal applicability. The wound type induction motors meet global industrial operation requirements.

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