YLKK Series Three Phase Asynchronous Motor

YLKK Series Three Phase Asynchronous Motor Introduction

YLKK series high voltage three phase asynchronous motor is a new type of special motor for all kinds of pump independently developed by our company. Motor than YL series high voltage motor, higher level door, larger axial force, also the products through the machine base by a full plate welding and a rotor punching sheet using special groove shape design, the rotor adopts domestic advanced fixing technology, independent research and development of the bearing device and end ring the application of whole body molding and other new technology, making the product structure is strong, the stability is high, can meet the current pumps to bear large axial force motor, and protection grade requirements of vertical high pressure of demand.

The power grade, electric property, mounting dimensions and tolerance are coincident with national standard GB755 Rotating Electric Motor Rating and Property, International Electrical Committee standard IEC34-1 Rotating Electric Motor Rating and Property and machinery industry standards etc.

The protections grade of this series of motor is IP23 in accordance with the standard of GB4942.1 and IEC34-5 Enclosure Protection Class of Rotating Electrical Machine. If the users need other protection class, we may also provide relevant products.

The cooling methods of this series of motor is IC01 in accordance with the standards of GB/T1993 and IEC34-6 Cooling Methods of Rotating Electrical Machine. If the users need other cooling methods, we may also provide relevant products.

The structure and Installation method of this series of motor is IMV1, and complies with the the specifications of GB997 and IEC 34-7 Motor Structure and Mounting Type Code.

YLKK Series Three Phase Asynchronous Motor Features

The frame is made of steel plate being welded up into form of square tank shape with light weight and firm rigidity.

Stator is an outer-press-assembly structure.

The stator is made of F grade insulation and corona proof material, a special banding technique is used for winding end part fastening.

The whole stator has been treated with VPI technology to make stator with a robust body and good electric and moisture proof.

The rotor can be developed into casting aluminum rotor or copper bar rotor.

The copper cage rotor guide bar and end ring are welded by intermediate frequency, and the copper guide bar diameter groove is treated with solid technology to make it have high reliability.

It can withstand a lot of axial force.

YLKK Series Three Phase Asynchronous Motor Type Description:

The motor type is composed of the product code and size code in accordance with the regulations of GB4831. The product code is represented by the motor series code, the meanings are as the below:
YLS——Vertical type squirrel cage rotor induction motor;
YLST——Vertical type squirrel cage rotor induction motor undertakes axial thrust;
YLKS——Vertical type squirrel cage rotor induction motor with air-water cooler;
YLKST—— Vertical type squirrel cage rotor induction motor with air-water cooler and undertakes axial thrust;
YLKK——Vertical type squirrel cage rotor induction motor with air-air cooler;
YLKKT——Vertical type squirrel cage rotor induction motor with air-air cooler and undertakes axial thrust;

YLKK Series Three Phase Asynchronous Motor Operation Conditions:

(1) Sea level is not over 1000m;
(2) The highest ambient temperature is not exceed 40℃; the lowest ambient temperature for the motor with rolling bearing is -15℃, and for the motor with sliding bearing, the lowest ambient temperature is 5℃;
(3) For the YLKS and YLKST series of motors, the temperature of cooled water in the cooling inlet is 5~33℃;
(4) In moist month, the monthly overage highest relative humidity is 90%, at the same time, the monthly overage lowest temperature is not over 25℃;
(5) The frequency of power source is 50Hz±l%;
(6) The variation of work voltage is not over rated voltage±5%;
(7) Motor rating is continuous operation system SI;
(8) YLST, YLKKT, YLKST series of motors may undertake axial thrust 3~60t.

YLKK Series Three Phase Asynchronous Motor Construction Description

The medium sized motor employs the internationally popular box structure, and the frame and end cover is welded with steel plate featuring the good stiffness and light weight. After removing the protective cover (or cooler), we may observe and touch the inside of the motor, which is convenient for the installation and maintenance of the motor. The stator employs the external pressing structure. The stator winding employs the F-level insulation material and anti-corona material. The fixing of winding terminals employs the reliable special binding process. The whole stator employs the vacuum pressure impregnation F-level solventless paint (VPI) for treatment. Thus, the motor has the excellent and reliable insulation performance and the ability of damp-proof and shock resistance.

The squirrel rotor employs both cast aluminum and cooper, running reliably.

As for the motor wether undertakes axial thrust and the size of axial pushing power, there are rolling bearings or sliding bearings to be used for upper bearing structure of motor. But only rolling bearing for lower bearing structure. The motor employs the rolling bearing structure has the oil filling and exhausting equipment without stopping the machine.

The main terminal box employs the sealed structure, and the protection class is IP54. The inlet holes of terminal box may be switched to the upper, down, left and right directions. The box has the separate grounding terminals.

Comparison Of Different series High Voltage Motors

YLKK Series Three Phase Asynchronous Motor Technical Parameter