YZR series three-phase asynchronous motors for lifting and metallurgyDetailed product description：

YZR series three-phase asynchronous motor for lifting and metallurgy

Overview:
The YZR series is the latest designed electric motor with high overload capacity and mechanical strength, especially suitable for driving various types of metallurgical and lifting machinery or other similar equipment. The YZR series is a wound rotor motor.
The electric motor can operate normally under the following environmental conditions:
(1) The temperature of the cooling medium shall not exceed 60 ℃ (for metallurgical motors) or 40 ℃ (for lifting motors)
(2) Altitude not exceeding 1000 meters
(3) Frequent and significant mechanical vibrations and impacts.
3. The electric motor can work normally under the following load conditions
(1) Frequent starting and reversing
(2) Frequent electrical or mechanical braking
The rated frequency of the motor is 50 Hz and the rated voltage is 380 volts
5 Connection Method: The stator winding with a power of 132 kW and less should be connected using the Y connection method, while the rest should be connected using the △ connection method.
Model description of YZR series three-phase asynchronous motors for lifting and metallurgy:



7 Output power and speed
The rated output power and synchronous speed under the benchmark working system (S340%) are shown in the following table: (specifications inside the thick wire frame for cage type motor manufacturing)

Rated power (KW)	Maximum torque/rated torque
≤5.5 ＞5.5～11 ＞11	two point three two point five two point eight

The guaranteed value of the ratio of the maximum torque to the rated torque of YZR series motors at rated voltage under the 8-standard working system is shown in the following table:

base			synchronous speed
			one thousand	seven hundred and fifty	six hundred
112M			one point five
one hundred and thirty-two	M1		two point two
	M2		three point seven
one hundred and sixty	M1		five point five
	M2		seven point five
	L		eleven	seven point five
180L			fifteen	eleven
200L			twenty-two	fifteen
225M			thirty	twenty-two
two hundred and fifty		M1	thirty-seven	thirty
		M2	forty-five	thirty-seven
two hundred and eighty		S	fifty-five	forty-five	thirty-seven
		M	seventy-five	fifty-five	forty-five
three hundred and fifteen		S		seventy-five	fifty-five
		M		ninety	seventy-five
three hundred and fifty-five		M1			ninety
		L1			one hundred and ten
		L2			one hundred and thirty-two
four hundred		L1			one hundred and sixty
		L2			two hundred

The guaranteed values of the maximum torque and locked rotor torque to rated torque ratio of YZ series motors at rated voltage under the 9-standard working system are shown in the following table:

Rated power (KW)	Maximum torque/rated torque	Locked rotor torque/rated torque
≤5.5 ＞5.5～11 ＞11	two two point three two point five	two two point three two point five

Work schedule and technical data:
The rated voltage of the motor is 380V and the rated current is 50Hz.
Electric motors are suitable for intermittent periodic loads. According to the different properties of the load, the working system of electric motors can be divided into:
(1) Intermittent Periodic Working System (S3):
It is a series of identical working cycles, each cycle including a period of constant load operation and a period of stop and power-off (see figure below). In this type, the starting current of each cycle should not have a significant impact on the temperature rise of the motor; Every 10 minutes is a work cycle, which means starting six times per hour.


N operating time under rated conditions
R stop and power-off time
The highest temperature reached by Qmax during the working cycle
Load duration rate
CDF=

(2) Intermittent periodic working system with starting (S4):
It is a series of identical work cycles, each cycle including a starting time, a constant load operation time, and a stopping and power-off time (see the figure below); The number of starts per hour is divided into 150, 300, and 600 times.


D Start time
R stop and power-off time
N operating time under rated conditions
R stop and power-off time
The highest temperature reached by Qmax during the working cycle
Load duration rate
CDF=

(3) Intermittent periodic working system with electric braking (S5):
It is a series of identical work cycles, each cycle consisting of a starting time, a constant load operation time, a fast electric braking time, and a stopping and power-off time (see the figure below).



D Start time
N operating time under rated conditions
F electric braking time
R stop and power-off time
The highest temperature reached by Qmax during the working cycle
Load duration rate
CDF=

When selecting an electric motor, various starting and braking states need to be converted into equivalent full starting times per hour based on equivalent heating. Determine the rating of the motor based on the equivalent number of full starts. Typical examples of conversion are shown in the table below.

working method	Braking state				Thermal equivalent starting times
	Number of starts per hour	Number of clicks per hour	Braking frequency per hour	Braking and reversing frequency per hour
S3	six	0	0	0	six
S3	four	eight	0	0
S3	two	eight	two	0
S4	one hundred and fifty	0	0	0	one hundred and fifty
S4	one hundred	two hundred	0	0
S5	eighty	0	eighty	0
S5	sixty-five	one hundred and thirty	sixty-five	0
S5	thirty	one hundred and sixty	thirty	thirty
S4	three hundred	0	0	0	three hundred
S4	two hundred	four hundred	0	0
S5	one hundred and sixty	0	one hundred and fifty	0
S5	one hundred and thirty	one hundred and sixty	one hundred and thirty	0
S5	sixty	three hundred and twenty	sixty	sixty
S4	six hundred	0	0	0	six hundred
S4	four hundred	eight hundred	0	0
S5	two hundred and sixty	0	three hundred and twenty	0
S5	two hundred and sixty	five hundred and twenty	two hundred and sixty	0
S3	one hundred and twenty	six hundred and forty	one hundred and twenty	one hundred and twenty

Conversion method: Jogging (final speed not exceeding 25% of rated speed) four times is equivalent to one full start; Electric braking (braking to 1/3 of rated speed) is equivalent to 0.8 full starts per time.
4. The benchmark working mode of the electric motor is S3-40%, and the technical data of the electric motor under each working system are shown in the table below. The nameplate data of the electric motor is generally provided according to the standard working system, and if the user has special requirements, the data provided by the user shall be followed. When the electric motor needs to operate in a way other than the S2-S5 working system, consultation with our company is required.

The working mode and technical data of YZR series electric motors:



The structure of the electric motor: Insulation level: divided into two types: F level and H level. F-grade is suitable for general places where the temperature of the cooling medium does not exceed 40 ℃; H-grade is suitable for metallurgical sites where the cooling medium temperature does not exceed 60 ℃, and both types of motors have the same electrical performance. Protection level: IP54 for metallurgical use; The lifting capacity is IP44. Cooling method: 112-132 is natural cooling (IC0041), 160-355 is self fan cooling (IC0141), and 400 is external fan cooling with internal circulation ventilation (IC0151). Installation structure type: see the table below

Installation and installation form	code name	Available machine bases	shaft extension
	1M1001	112~160	One end cylindrical shaft extension
	1M1003	180~400	One end cone shaft extension
	1M1002	112~160	Two end cylindrical shaft extension
	1M1004	180~400	Cone axis extension at both ends
	1M3001	112~160	One end cylindrical shaft extension
	1M3003	180~315	One end cone shaft extension
	1M3011	112~160	One end cylindrical shaft extension
	1M3013	180~315	One end cone shaft extension

The shaft extension of the electric motor can be manufactured according to the size or requirements requested by the user. Transmission method: The electric motor adopts coupling or spur gear transmission. If spur gear transmission is used, the minimum diameter of the gear pitch circle should not be less than twice the shaft extension diameter. The stator outlet box of the motor is located at the top of the motor and can be connected along both sides of the motor. The rotor can be connected from both sides of the end cover. Motor component names: as shown in the following figure

Installation and external dimensions:
Installation and external dimensions of YZR series:
(1) YZR series IM1001, IM1003, IM1002, IM1004 horizontally installed motors with base feet and end caps without flanges




(2) YZR series IM3001, IM3003, IM3011, IM3013 are vertically installed motors with a base without feet and a flange on the end cover



Installation and external dimensions of YZ series:
(1) YZ series IM1001, IM1003, IM1002, IM1004 horizontally installed motors with base feet and end caps without flanges

(2) YZ series IM3001, IM3003, IM3011, IM3013 are vertically installed motors with a base without feet and a flange on the end cover