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BLDC Motor Rotor Armature Testing Machine BEMF Magnetic Detection Single Station

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BLDC Motor Rotor Armature Testing Machine BEMF Magnetic Detection Single Station

China BLDC Motor Rotor Armature Testing Machine BEMF Magnetic Detection Single Station supplier

Large Image :  BLDC Motor Rotor Armature Testing Machine BEMF Magnetic Detection Single Station

Product Details:

Place of Origin: China
Brand Name: WIND AUTOMATION
Model Number: WIND-MTS-20

Payment & Shipping Terms:

Minimum Order Quantity: 1pc
Price: Negotiable
Packaging Details: Wooden Pallet
Delivery Time: 35 working days
Payment Terms: T/T
Detailed Product Description
Condition: New Test Product: BLDC Motor Rotor Armature
Working Station: Single Station Testing Item Content Display: Dispositivos Testador
HS Code:: 9030390000 After Sales Service: Engineer Available For Oversea Service
High Light:

high voltage test equipment

,

armature tester

BLDC Motor Rotor Armature Magnetic Detection BEMF Testing Machine WIND-ATS-20
 

 

 

(1) Competitive Advantages

 

Light curtain ensure the safety during testing of rotor spining for magnetic testing

 

Rich experience for testing kinds of BLDC motor rotor

 

 

 

(2) Testing item and accuracy

 

1. BEMF Testing, back electromotive force voltage

 

2. Magnetic Detection

 

    If the rotor magnetic is strong enough

 

BLDC Motor Rotor Armature Testing Machine BEMF Magnetic Detection Single Station

 

 

When the BDLC motor rotates, each winding generates a back electromotive force voltage (BEMF),

 

which, according to Lenz's law, is in the opposite direction to the main voltage supplied to the winding.

 

The polarity of this back EMF is opposite to the excitation voltage. Therefore, the voltage drop across

 

the winding can be calculated from the supply voltage minus the back-EMF value.

 

 

The back electromotive force constant is designed using the following method: When the motor is

 

running at rated speed, the potential difference between the back EMF and the supply voltage is

 

sufficient for the motor to consume the rated current and provide the rated torque. If the motor speed

 

exceeds the rated speed, the back EMF will increase significantly, reducing the voltage drop across the

 

winding and reducing the current, resulting in a drop in the torque curve.

 


Because the motor work is mainly reflected in the RMS voltage, the back EMF test is mainly to test the

 

effective value of the back EMF. Back-EMF mainly depends on three factors:


(1) Rotor angular speed ... is the servo drag speed for the test equipment


(2) The magnetic field generated by the rotor in this problem,This is a constant when the product is fixed


(3) Number of stator winding turns This is a constant when the product is fixed,


     Back-EMF constant: Ke Unit: V/rpm or V/Krpm or V/rad/s,

 

     therefore it is recommended to test the rotation speed at 1000 rpm.

 

 

Formula:


BEMF=(E)∝ NLRBω


N: the number of turns per phase winding


L: the length of the rotor (magnet part)


R: the inner diameter of the rotor


B: rotor magnetic field density


ω: the angular speed of the motor

 
 

Contact Details
Shanghai Wind Automation Equipment Co.,Ltd

Contact Person: Ms. Emily

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