Three-phase unbalanced load simulation test device and method
A technology of simulating test and balancing load, applied in the direction of measuring devices, instruments, measuring electricity, etc., can solve the problem that the three-phase balanced current cannot meet the adjustment performance of the three-phase controllable reactor, and achieve the effect of reliable operation
Active Publication Date: 2022-06-17
杭州银湖电气设备有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to solve the situation that the normal use of three-phase balanced current cannot meet the test requirements for the adjustment performance of three-phase controllable reactors, and proposes a three-phase unbalanced load simulation test device and its method. Incorporating fixed capacitor banks, switching capacitor banks and adjustable reactors can artificially create a three-phase unbalanced current, and this unbalanced current is controllable, which can verify that the three-phase controllable reactor works under the condition of three-phase unbalance The ability to adjust and verify whether the response time of the YMSVC-type phase-splitting compensation device can meet user requirements
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[0035] Example: as figure 1 As shown in the figure, the structure diagram of the three-phase unbalanced load simulation test device consists of a power supply cabinet 1, a voltage regulator 2, an intermediate transformer 3, a capacitor device, an electrical signal detection device for measuring the voltage and current signals of the test bus, an adjustable reactor and a waiting The test device is composed of 7, the power cabinet 1 has a three-phase power output terminal, the three test buses are respectively electrically connected to the three-phase power output ports of the power cabinet 1, and each test bus is connected with a voltage regulator 2, an intermediate transformer 3, Capacitor device, electrical signal detection device for measuring and testing bus voltage and current signal, adjustable reactor and device to be tested 7, the power input end of voltage regulator 2 is electrically connected to a power output end of power supply cabinet 1 through a switch, and the vol...
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The invention discloses a three-phase unbalanced load simulation test device and a method thereof. Connected with a voltage regulator, an intermediate transformer, a capacitor device, an electrical signal detection device for measuring and testing bus voltage and current signals, an adjustable reactance device and a device to be tested, the power input terminal of the voltage regulator is output through a switch and a power supply cabinet The terminals are electrically connected, the power output end of the voltage regulator is electrically connected to the power input end of the intermediate transformer, and the power output end of the intermediate transformer is electrically connected to the capacitor device, the adjustable reactance device and the capacitor device respectively. This technical scheme can artificially manufacture three-phase unbalanced controllable current, and can verify the adjustment ability of the three-phase controllable reactor in the case of three-phase unbalance and verify whether the response time of the YMSVC type phase split compensation device can meet user requirements.
Description
technical field [0001] The invention relates to the technical field of power product testing, in particular to a three-phase unbalanced load simulation test device and a method thereof. Background technique [0002] In some enterprises, such as steel mills or railways, the load equipment uses a single-phase system for power consumption. Since the power grid is a three-phase system, this will lead to an unbalanced load on the three-phase line. In order to solve this problem, it is necessary to adjust the unbalanced circuit according to the actual situation. To compensate and reduce the unbalance of the three-phase system, this problem can be solved by using a three-phase controllable reactor device. Since the three-phase controllable reactor is in actual operation, the three-phase load will be inconsistent, that is, the three-phase load will be inconsistent. If the voltage is constant and the three-phase current is unbalanced, the output of the reactor will be greatly affecte...
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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 何建伟杨圣利杨富文荣峻峰张钊袁成
Owner 杭州银湖电气设备有限公司