Low-voltage three-phase asynchronous motor energy efficiency rating and test procedure
Motor energy efficiency evaluation mainly refers to or quotes GB/T1032 three-phase asynchronous motor test method, then which method is used for low-voltage three-phase asynchronous motor energy efficiency test? And what are the method steps?
First, the energy efficiency test mainly has the following standard methods:
(1): Method A - Input-Output Method
(2): Method B - loss analysis and input-output method for indirect measurement of stray loss
(3): C method - loss analysis and feedback method Introduction to measuring stray loss
(4): E method - loss analysis and direct method to measure load stray loss
(5): E1 method - loss analysis and recommended load stray loss
(6): F method - equivalent circuit and direct method to measure load stray loss
(7): F1 method - equivalent circuit and recommended load stray loss
(8): G method - reducing voltage load method and direct method to measure load stray loss
(9): G1 method - reduce voltage load method and recommended load stray loss
(10): H method - circle chart method
Second, low-voltage three-phase asynchronous motor energy efficiency test method - B method:
GB/T18613 small and medium-sized three-phase asynchronous motor energy efficiency limit value and energy efficiency rating for motor energy efficiency test reference G / BT1032 three-phase asynchronous motor test method B method - measuring input power and output power loss analysis method.
Third, the test B method steps:
(1): Determine if the power supply meets the requirements
(2): Determine the accuracy of the meter range meets the requirements
(3): Motor inspection, nameplate data check; wiring diagram, wiring method check, etc.
(4): Determination of cold DC resistance
(5): Thermal test
(6): Load test
(7): No-load test
