What electrical equipment do photovoltaic booster stations typically have?

What electrical equipment do photovoltaic booster stations typically have?

The electrical equipment in photovoltaic booster stations mainly includes transformers, reactors, switchgear, and measuring equipment.

Transformers are key equipment in photovoltaic step-up stations, which achieve power transformation by changing the voltage level. The main function of transformers is to convert low-voltage direct current into high-voltage alternating current for transmission to the power grid. In photovoltaic booster stations, three-phase transformers are usually used, and their capacity is determined based on the output power of the photovoltaic panel.

Reactors are also indispensable equipment in photovoltaic booster stations, and their main function is to compensate for the input and output currents of transformers, in order to reduce the impact of current changes on the system. Reactors are generally divided into input reactors and output reactors, which are connected to the input and output terminals of transformers to minimize current fluctuations.

The switchgear includes circuit breakers, isolation switches, and load switches, which are used to control the current circuit in the photovoltaic booster station and ensure that the current can be cut off in a timely manner in the event of a fault, protecting equipment and personal safety. Among them, circuit breakers are used to automatically cut off current in abnormal situations, isolation switches are used to isolate current during maintenance, and load switches are used to control current on and off under normal conditions.

Measurement equipment is used to monitor the working status and power parameters of photovoltaic step-up substations, including voltage meters, ammeters, power factor meters, and energy meters. These devices can display various parameters of the photovoltaic booster station in real-time, so that staff can promptly detect and handle abnormal situations.

In order to ensure the normal operation and extend the service life of electrical equipment in photovoltaic booster stations, reasonable maintenance and management measures must be taken. Daily maintenance includes regular inspection of electrical equipment and its connection parts, keeping the equipment clean and dry, and conducting regular inspections and inspections of the equipment. In terms of maintenance and repair, regular power outage inspections and repairs should be carried out on electrical equipment, oil sample extraction and testing should be carried out on transformers, dust cleaning and insulation testing should be carried out on reactors, contact inspection and mechanical performance testing should be carried out on switchgear, and measurement equipment should be calibrated and verified.

In terms of maintenance tests, preventive tests should be regularly conducted on electrical equipment, such as voltage withstand tests on transformer oil, action tests on switchgear, and insulation resistance tests. In addition, it is necessary to calibrate and adjust the protective devices of electrical equipment to ensure that they can operate correctly in abnormal situations.

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