What Is a Standby Generator?
Under normal circumstances, the power required by the user is supplied by the mains. When the mains power is limited or the power supply is interrupted for other reasons, the generator set is provided to ensure the basic production and life of the user. This type of generator set is standing in important power consumption units such as telecommunications departments, hospitals, industrial and mining enterprises with tight power supply, airports and television stations. This type of unit maintains standby status at any time and can provide continuous power supply to non-constant loads.
- With the development of science and technology, some power users and electrical equipment have higher and higher requirements for the reliability of power supply. In order to ensure the reliability of power supply, some important users, such as hospitals, data centers, and communication hubs, in their power supply systems, in addition to dual power supply, have internal backup generators, and even some have
- First, the unit cannot work normally
- 1) Power supply is dangerous. Due to the unreliable reasons of the unit itself, the unit cannot supply power to the system, the standby power supply function fails; or the power supply quality of the unit is not good
- Backup generator set
- 2) Environmental danger. Refers to the harmful effects of the environment as working conditions or influencing factors on the unit's work. If the generator set located in the basement is flooded, the unit cannot work normally.
- 3) Guarantee conditions are dangerous. There is a danger that the unit cannot work normally due to human error during use and maintenance. For example, due to negligence of work, a large amount of water enters the fuel tank of the unit and the unit cannot work normally.
- 4) Software is dangerous. The software itself is safe, and it is dangerous when it is integrated with hardware for monitoring. If the unit is included in centralized monitoring, the danger caused by accidental start-up of the unit due to unintentional or unauthorized operation.
- Second, the impact of the unit on the environment and people
- 1) Thermal danger. Thermal hazards arise from uncontrolled heat flow, high temperature, low temperature, or temperature changes. These hazards can cause injury or damage to people and equipment, and can also induce other harmful effects. If the unit's civil exhaust chimney is integrated with other buildings, if there is high temperature flue gas leakage, there will be thermal danger.
- 2) Risk of vibration. Vibration will adversely affect equipment and people, causing damage to equipment or buildings, and human damage. If the vibration isolation measures of the generator set installed on the building floor are not good, the vibration of the unit will generate a load that is not considered in the building design calculation of the floor structure.
- 3) Noise hazard. Excessive noise can cause physical or mental illness.
- 4) Risk of fire. Fire is a common hazard. Unintentional fires can have more severe effects than other hazards. A common fire situation in a generator set is that high-temperature components or gases ignite flammable substances, such as fuel leaks and injections on high-temperature components, or high-temperature exhaust leaks from the units, igniting adjacent flammable materials.
- 5) Electrical danger. Electrical hazards prone to generating units are divided into 7 main categories: electric shock, ignition of explosives, heat and overheating, start-up accidents caused by negligence, failure to operate as required, electric explosion, static electricity.
- 6) Mechanical danger. Mechanical hazard refers to the possible mechanical hazards of all mechanical equipment. Common dangers of the generator set are: flying parts or flying around wounding the human body, sharp corners or sharp edges scratching the human body. [2]