A multi-parameter integrated sensor for monitoring generator armature windings

Abstract

The invention relates to a multi-parameter integrated sensor for monitoring an armature winding of a generator, and the sensor comprises a clamping device which is provided with a measurement element.The clamping device comprises an upper clamping part and a lower clamping part, which can be folded together. After folding, an accommodation space is formed at the center of the clamping device, andthe accommodation space wraps and hoops the winding. The upper and lower clamping parts are folded together to generate a clamping force for a stator winding, thereby enabling the measurement elementto sense the dynamic parameters generated in the working process of the winding. The measurement element is connected with a data collector, and the data collector collects the dynamic parameters collected by the measurement element. The sensor can obtain the current, temperature and three-direction vibration signal of a specific branch circuit or a specific coil in different operation states, soas to obtain the real-time fault state information of different wire rods of the generator winding, thereby achieving the purposes of facilitating the installation and disassembly, saving time and reducing a large amount of repeated labor.

Description

technical field [0001] The invention relates to an integrated integrated sensor for simultaneous monitoring of a specific branch of a stator winding, a specific coil current, temperature, and three-way vibration signals under different operating states of a generator, and belongs to the technical field of monitoring. Background technique [0002] Parameters such as current, temperature and vibration acceleration of the stator winding are important parameters that affect the stable operation of the generator. Real-time monitoring of these important parameters is conducive to ensuring the safe operation of the generator and diagnosis of faults. [0003] At present, there are many sensors for monitoring the generator stator winding at home and abroad, but most of them only use a single sensor to monitor a certain parameter. If you want to monitor the three parameters of current, temperature and vibration acceleration at the same time, you need to simultaneously Install three ty...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many sensors for monitoring the generator stator winding at home and abroad, but most of them only use a single sensor to monitor a certain parameter. If you want to monitor the three parameters of current, temperature and vibration acceleration at the same time, you need to simultaneously Install three types of sensors, and the installation and disassembly of sensors used in some monitoring processes is very troublesome, so when dealing with large-scale or high-frequency monitoring tasks, this method is very cumbersome, and the workload is particularly heavy, which cannot adapt to the current fast-paced environment. Production line safety monitoring requirements

At the same time, due to the difference in installation position and installation angle, there are often large measurement errors among multiple sensors

[0004] In addition, there is a more important problem that the current data measured at the machine end is mostly the current data of a certain phase, and it is difficult to measure the current of a specific branch or a specific coil; at present, the vibration of the winding is mostly Measurement systems based on fiber optic acceleration sensors mostly measure radial vibration, and are insufficient for tangential and axial vibration data acquisition.

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