Water resistor for load test in generator and generator load testing device

Abstract

The invention discloses a water resistance for a generator load test. The water inlet pipe of the working water tank is provided with a water supply pump to pump water into the water storage tank, and the outlet pipe is provided with a drainage pump to pump the water in the water tank to the spray pipe. A water receiving basin is provided below to collect the sprayed water, and a return channel is provided at the bottom of the water receiving basin to pour the collected water back into the water storage tank. Its working water tank is connected to the water supply pump and the drainage pump, and the water level in the working water tank can be adjusted by adjusting the flow of the water supply pump and the drainage pump, so as to adjust the load. Because the water level changes uniformly and slowly, its load regulation changes smoothly without sudden changes. In addition, the water discharged from the working water tank is sprayed and cooled before returning to the water storage tank. During the circulation process, the water can dissipate the heat generated by the power consumption of the generator during the load test to the outside in time. It will not vaporize, so it can maintain the stability of the load.

Description

technical field [0001] The invention relates to a water resistance used in the load test of a generator in the shipbuilding industry, and a generator load test device. Background technique [0002] At present, there are two main ways to control the load up and down of the water resistance of the generator load test device used by the shipyard, one is the dynamic pole control, and the other is the air pressure control. Among them, the moving pole control means that the hoist drives the pole plate to move up and down in the load cylinder to change the contact area between the pole plate and the water, so as to realize the load lifting, so as to provide different load conditions for the generator to test. It is a mechanical control, which is restricted by the control method. During the load adjustment process, the load fluctuates greatly. Pneumatic control is to change the air pressure of the container connected with the load cylinder, change the amount of water pressed from ...

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Problems solved by technology

However, this control method will be affected by the fluctuation of air pressure. In the case of unstable air pressure, its load will also fluctuate accordingly.

In addition, both of the above two control methods have the problem that the water in the load cylinder will be vaporized due to overheating during the test process. The gasification of water will make the load of the load cylinder change accordingly, thus affecting the stability of the load of the load cylinder, resulting in Load drift, which adversely affects the load test of the test generator

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