Single-Phase Motor

Single Phase Capacitor Start Motor

Single-phase capacitor starts motor uses the latest design from high-quality material relevant to IEC standard, developed with good performance, reliable operation, safety, aesthetic appearance, low noise, slight vibration, lightweight, simple structure with easy maintenance. They are suitable for air compressors, pumps, refrigeration, medical instruments, equipment, and other fully loaded starter machines.

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Single-phase capacitor starts motor uses the latest design from high-quality material relevant to IEC standard, developed with good performance, reliable operation, safety, aesthetic appearance, low noise, slight vibration, lightweight, simple structure with easy maintenance. They are suitable for air compressors, pumps, refrigeration, medical instruments, equipment, and other fully loaded starter machines.

Technical Parameters:

Motor type Power Voltage Current Frequency Speed Efficiency Power factor Cos Irl/

Irated

TLR/

Trated

Noise
Kw HP V A Hz R/min % LwdB(A)
YC7U2 0.18 0.25 220 1.89 50 2800 60 0.72 12 3.0 70
YC7122 0.25 0.33 220 2.4 50 2800 64 0.74 15 3.0 70
YC80M1-2 0.37 0.5 220 3.11 50 2800 65 0.77 21 2.8 75
YCM80M2-2 0.55 0.75 220 4.65 50 2800 68 0.79 29 2.8 75
YC90S-2 0.75 1.0 220 6.09 50 2800 70 0.8 37 2.5 75
YC90L-2 1.1 1.5 220 8.68 50 2800 72 0.8 60 2.5 78
YC100L1-2 1.5 2.0 220 11.38 50 2820 74 0.81 80 2.5 83
YC100L2-2 2.2 3.0 220 16.46 50 2820 75 0.81 120 2.2 83
YC112M-2 3.0 4.0 220 21.88 50 2840 76 0.82 150 2.2 87
YC132S-2 3.7 5.0 220 26.64 50 2840 77 0.82 175 2.2 87
YC7114 0.12 0.16 220 1.88 50 1400 50 0.58 9 3.0 65
YC7124 0.18 0.25 220 2.49 50 1400 53 0.62 12 2.8 65
YC80M1-4 0.25 0.33 220 3.11 50 1400 58 0.63 15 2.8 65
YC80M2-4 0.37 0.5 220 4.24 50 1400 62 0.64 21 2.5 70
YC90S-4 0.55 0.75 220 5.49 50 1400 66 0.69 29 2.5 70
YC90L-4 0.75 1.0 220 6.87 50 1400 68 0.73 37 2.5 70
YC100L1-4 1.1 1.5 220 9.52 50 1420 71 0.74 60 2.5 73
YC100L2-4 1.5 2.0 220 12.45 50 1420 73 0.75 80 2.5 78
YC112M-4 2.2 3.0 220 17.78 50 1420 74 0.76 120 2.2 78
YC132S-4 3.0 4.0 220 23.61 50 1440 75 0.77 150 2.2 82
YC132M-4 3.7 5.0 220 28 50 1400 76 0.79 175 2.2 82

Product Properties:

Protection Class: IP44/IP54

Insulation Grade: B

Cooling Way: IC411

Duty Type: S1

Capacitor Start Induction Motor Working Principle

  • When the stator windings are energized from a 1-phase supply, the primary and starting winding carry two different currents. The two currents have 90° time-phase and 90° space differences.  These two currents produce a rotating magnetic field that starts the motor.
  • The primary and auxiliary windings are connected in parallel during motor starting. A start capacitor stays in the circuit long enough to rapidly bring the motor up to a predetermined speed, which is usually about 70 to 80 % of the full speed.
  •  Then the auxiliary winding is disconnected from the supply, often by a centrifugal switch, and the motor remains powered by a single winding creating a pulsating magnetic field. In this sense, the auxiliary winding in this design can be regarded as a starting winding since it is only used during motor startup.
  • The motor will not work correctly if the centrifugal switch is broken. If the switch is always open, the start capacitor is not part of the circuit, so the motor does not start. If the switch is always closed, the start capacitor is always in the circuit, so the motor windings will likely burn out. If a motor does not start, the capacitor is far more likely the problem than the switch.

Capacitor Start Induction Motor Features

  • The starting winding of a capacitor starts the motor heats up less quickly and is well suited to applications involving either frequent or prolonged starting periods.
  • The power rating of such motors lies between 120 W and 7-5 kW.
  • The capacitor starts motor develops a much higher starting torque of about 3 to 4.5 times of the total load torque. To obtain a high starting torque, the two conditions are essential that are as follows:
  • The Starting capacitor value must be significant.
  • The valve of the starting winding resistance must be low.

Capacitor Start Induction Motor Application

  • These motors are used for loads of higher inertia where frequent starting is required.
  • They are used on a wide range of belt-drive applications like small conveyors, large blowers, and machine tools.
  • They are used in pumps and compressors.
  • They are used in refrigerators and air conditioner compressors.
  • They are also used for many direct-drive or geared applications.

What Are The Differences Between A Three Phase And A Single Phase Motor?

Single-phase and three-phase motors are two different electrical mechanisms to produce mechanical energy for electronic appliances. We are here to explain some distinguishing factors between these two effective motors.

(1) A single-phase motor contains a single frequency. Here, an alternator having a single winding delivers the source voltage. On the contrary, a three-winding alternator generates AC voltage having a uniform frequency in the case of a three-phase motor.
(2) Single-phase motors require lesser maintenance compared to three-phase motors.
(3) Its manufacturing cost is comparatively low.
(4) A motor operating via single-phase power can produce pulsating torque. But, three-phase motors are capable of generating uniform torque.
(5) Series operation is easier and more effective for a 1 But, 3 motor’s compatibility with parallel operation is impressive.
(6) Three-phase industrial motors are usually applied to industrial sectors. On the other hand, 1induction motors have superior uses in residential electronic appliances and commercial types of electronic equipment as well.
(7) A single-phase motor can’t deliver the same effectiveness and power factor in electronic applications similar to a three-phase system.