EPS emergency power supply can be said to be an emerging industry that has developed rapidly in the past two years. Compared with the mature UPS, there are similarities and differences. The same point is that they all have the function of continuously supplying AC power to the load in the event of a mains failure (interruption), using IGBT inverter technology and pulse width modulation (PWM) technology.
The difference is that in addition to providing uninterrupted power supply, UPS also has the function of improving the quality of the mains, while the EPS emergency power supply mainly solves the emergency power supply problem during the mains failure; UPS mainly provides power protection for the IT industry equipment, EPS Emergency power supply is applicable to various industries; UPS power supply mode requires short switching time (0~10ms), EPS emergency power supply is relatively wide (0~0.25s); UPS mainly carries computer load, and EPS emergency power supply The load is mixed; the UPS has higher requirements for the operating environment, and the EPS emergency power supply is required to adapt to various environments; the UPS is mainly used for general user monitoring, the EPS emergency power supply is mainly used for emergency power supply, and the fire protection is required; For the main purpose, the EPS emergency power supply is aimed at preventing major disasters. It can be visually analogized that UPS is mainly based on “saving data†and EPS is mainly “saving peopleâ€. Generally, the EPS power is large, and the inverter inside the machine is in a standby state.
In view of the main design idea of ​​EPS emergency power supply, it provides a safe and reliable emergency power supply when the utility power is suddenly interrupted, and effectively avoids the personal injury and property loss in the event of disaster. Therefore, the design of EPS should focus on its safety, reliability, applicability and rationality. There are:
1) The power-off conversion time is generally in the millisecond level (2 milliseconds - 250 milliseconds), depending on the load characteristics to ensure the timeliness of power supply;
2) Strong load adaptability, including capacitive, inductive, hybrid load, and strong overload capacity and impact resistance;
3) There are multiple outputs to prevent the output from forming a single fault;
4) There are fire linkage and remote control signals, which can be manually and automatically converted;
5) Strong environmental adaptability, suitable for all kinds of harsh environments, measures to prevent high and low temperature, damp heat, salt spray, dust, vibration and rat bites;
6) Long service life, fast battery charging and management capabilities;
7) Energy saving, high operating efficiency and low operating cost;
8) Unattended, automatic operation function;
9) The alarm function is complete, and it can provide alarms of various abnormal conditions in time;
10) There is a strong start function to prevent the battery link from being activated after being protected;
11) No smoke, no noise, no pollution, etc.; 12) Simple maintenance and low maintenance cost.
The difference is that in addition to providing uninterrupted power supply, UPS also has the function of improving the quality of the mains, while the EPS emergency power supply mainly solves the emergency power supply problem during the mains failure; UPS mainly provides power protection for the IT industry equipment, EPS Emergency power supply is applicable to various industries; UPS power supply mode requires short switching time (0~10ms), EPS emergency power supply is relatively wide (0~0.25s); UPS mainly carries computer load, and EPS emergency power supply The load is mixed; the UPS has higher requirements for the operating environment, and the EPS emergency power supply is required to adapt to various environments; the UPS is mainly used for general user monitoring, the EPS emergency power supply is mainly used for emergency power supply, and the fire protection is required; For the main purpose, the EPS emergency power supply is aimed at preventing major disasters. It can be visually analogized that UPS is mainly based on “saving data†and EPS is mainly “saving peopleâ€. Generally, the EPS power is large, and the inverter inside the machine is in a standby state.
In view of the main design idea of ​​EPS emergency power supply, it provides a safe and reliable emergency power supply when the utility power is suddenly interrupted, and effectively avoids the personal injury and property loss in the event of disaster. Therefore, the design of EPS should focus on its safety, reliability, applicability and rationality. There are:
1) The power-off conversion time is generally in the millisecond level (2 milliseconds - 250 milliseconds), depending on the load characteristics to ensure the timeliness of power supply;
2) Strong load adaptability, including capacitive, inductive, hybrid load, and strong overload capacity and impact resistance;
3) There are multiple outputs to prevent the output from forming a single fault;
4) There are fire linkage and remote control signals, which can be manually and automatically converted;
5) Strong environmental adaptability, suitable for all kinds of harsh environments, measures to prevent high and low temperature, damp heat, salt spray, dust, vibration and rat bites;
6) Long service life, fast battery charging and management capabilities;
7) Energy saving, high operating efficiency and low operating cost;
8) Unattended, automatic operation function;
9) The alarm function is complete, and it can provide alarms of various abnormal conditions in time;
10) There is a strong start function to prevent the battery link from being activated after being protected;
11) No smoke, no noise, no pollution, etc.; 12) Simple maintenance and low maintenance cost.
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