Three-phase motor phase sequence detection device and method based on signal amplification
A three-phase motor, signal amplification technology, applied in the direction of phase sequence/synchronization indication, etc., can solve problems such as damage to equipment, personal accidents, economic losses, etc.
Pending Publication Date: 2021-06-08
国能河北衡丰发电有限责任公司
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Problems solved by technology
When the motor is newly installed, replaced, or the winding is rewound and reassembled, the wrong wiring will cause the motor to reverse.
[0003] The current method is to connect the wires and test the motor for an empty test. The specific operation is to power on the motor to test the steering before it is in place. This method is time-consuming and laborious, and some occasions do not have the conditions for an empty test. Reverse rotation is not allowed. Once the wiring is wrong, the equipment will be damaged, resulting in economic losses, and serious personal accidents will occur
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[0035] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0036] Such as Figure 1-2 As shown, a three-phase motor phase sequence detection device based on signal amplification, including a power supply module, a signal acquisition and processing module and an indication module;
[0037] The power module is used to provide working power for the circuit; the power module includes a bipolar DC power supply composed of two 9V alkaline batteries, which are respectively connected with the signal acquisition and processing module and the indication module.
[0038] The signal acquisition and processing module is used to collect and process the signals sent by the detected equipment; the signal acquisition and processing module includes: a signal acquisition unit, a signal amplification unit, a signal adjustment unit, a signal conversion unit and a signal integration unit.
[0039] Spec...
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The invention provides a three-phase motor phase sequence detection device and method based on signal amplification. The three-phase motor phase sequence detection device comprises a power supply module, a signal acquisition and processing module and an indication module, the power supply module is respectively connected with the signal acquisition and processing module and the indication module and serves as a power supply; the signal acquisition and processing module is used for acquiring and processing a signal sent by detected equipment, and the signal acquisition and processing module is connected with the indication module; the signal acquisition and processing module comprises a signal acquisition unit, a signal amplification unit, a signal adjustment unit, a signal conversion unit and a signal integration unit; and the output end of the detected equipment is connected with the signal acquisition unit, the signal acquisition unit is sequentially connected with the signal amplification unit, the signal regulation unit, the signal conversion unit and the signal integration unit, and the output end of the signal integration unit is connected with the indication module. When the device and the method provided by the invention are used for detection, the step of testing the motor without load can be avoided, and the safety of personnel and equipment is enhanced.
Description
technical field [0001] The invention relates to the technical field of instruments and meters, in particular to a three-phase motor phase sequence detection device and method based on signal amplification. Background technique [0002] Three-phase motors are widely used in industrial production. Three-phase motors are divided into high-voltage motors and low-voltage motors according to voltage levels. When the motor is newly installed, replaced, or the winding is rewound and reassembled, the wrong wiring will cause the motor to reverse. [0003] The current method is to connect the wires and test the motor for an empty test. The specific operation is to power on the motor to test the steering before it is in place. This method is time-consuming and laborious, and some occasions do not have the conditions for an empty test. Reverse rotation is not allowed. Once the wiring is wrong, the equipment will be damaged, resulting in economic losses, and serious personal accidents wi...
Claims
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Login to View More IPC IPC(8): G01R29/18
CPCG01R29/18
Inventor 王明王方王正
Owner 国能河北衡丰发电有限责任公司