How to rationalize Cummins diesel generator power supply system

The purpose of using diesel generators is to use diesel generators to generate electricity. If there is a problem with the power supply system of the diesel generators, how do we deal with it?

In AC power supply systems, automatic switching devices are gradually promoted and mechanical manual switching functions are available for emergency use. In the large-capacity AC power supply system, it is recommended to use two sub-power supply systems (transformer and oil machine) respectively for power supply. The contact cabinets between the sub-power supply systems are used as stand-by for each other. The oil machine should not run in parallel as far as possible.

Important points should strive to introduce two high voltage lines of different substations to improve power supply. If the large-capacity low-voltage circuit breaker is damaged, it takes a long time to determine the cause of the fault and maintain the circuit breaker. In this case, start the emergency plan in time and use a temporary cable to connect the circuit breaker to the temporary power supply to prevent the battery from shining due to insufficient time.

The capacity of a single set of high-frequency switching power supply should not be too large. Determine the number of power modules to be started based on the environment and faults. Do not start more power modules in an office with overall destructive factors. Battery charging current is limited to 0.1C10. The rated current of the DC fuse should not be more than twice of the maximum load current to ensure that the fuse is blown in time when the load is short circuited, avoiding a large transient voltage drop of the entire DC power supply system.

Large-capacity UPS is a difficult task in power supply maintenance and management. Therefore, measures should be taken to reduce the zero-ground voltage of the UPS output to below 1V. The UPS battery should be a 2V valve-controlled sealed battery. For UPS equipment, pay attention to important indicators such as input power factor and harmonic content, especially coordinate with the oil engine, oil engine capacity and UPS capacity ratio should be more than 2 times, to ensure that the oil engine and UPS can work normally.

Jiangsu Meao Power Technology Co., Ltd. is an important manufacturer of diesel generators. The company mainly manufactures and sells diesel generator sets with power of 3-3000kW, mobile power station of 24-600kW, Marine emergency diesel generator set of 24-800kW, gas generator set, heavy oil generator set and all kinds of imported series, special series (trailer, static speaker, mobile lighthouse, container, etc.) diesel generator At the same time, we are engaged in generator set maintenance and after-sale service of generator set accessories.