The street lamp power-saving control system is mainly composed of the digital control voltage stabilizing technology (AVR) with independent intellectual property rights and the programmable energy-saving control system. The adjustment mode is the electronic switch matrix of the digital control voltage stabilizer of the energy-saving control system, and the TAP of the transformer is adjusted to adjust the output power. 1. Energy-saving principle of the system: High-frequency and high-power power electronic devices are used to realize voltage amplitude modulation, but thyristor voltage regulation technology (serious harmonics) cannot be used, and transformer or reactance step-down energy-saving technology (flashing lights and extinguishing lights) is not recommended.

2. Intelligent can be set to automatically control energy saving for more than 8 periods, and multi-period voltage, energy saving rate and illumination can be adjusted by users.

3, no contact voltage regulation, it is not recommended to use contactor contacts to adjust the voltage (flashing lights).

4. The voltage regulation is stepless and continuous, and the step value of each level of regulation voltage is less than 1V. During the regulation, the lamp does not flash and does not go out, and there is no power grid flash impact.

5. When regulating voltage, the regulating speed can be set by the user to adapt to the slow change of light brightness and the stability of lamp arc.

6, turn on the light with full voltage preheating, preheating time (more than 11 minutes) can be set and adjusted by software.

7. The regulated adjustment range of the output voltage of the economizer is 161-221V.

8. adaptation range of input voltage of economizer: 161V-261V.

9, three-phase independent adjustment, can adapt to the three-phase serious imbalance.

11. It has the functions of manual bypass and fault automatic bypass, and can switch from energy-saving state to bypass and from bypass to energy-saving state. Lights cannot be flashed and turned off.

11. It has the function of unconditionally guaranteeing lighting, automatically bypassing overcurrent, overvoltage, undervoltage and overheating, and can record fault codes for maintenance. When the equipment is damaged, the lights cannot be turned off, and the life and normal operation of street lamps will not be affected when the equipment fails.

12. Energy-saving equipment shall be installed outdoors in the open air. The box body material shall be made of steel plate with a thickness of 2mm, which shall not be oxidized in 11 years. The protection level shall not be lower than IP33, and it shall be equipped with air cooling system. The switches in the box shall be made of high-quality brands.

13. Standard sine wave voltage (same as input voltage waveform) without distortion; The current harmonics of lighting load (sodium lamp bimodal current waveform) are not added, and the total harmonics of input current are not increased.

14. The power factor can only be increased but not decreased.

15. It has a monitoring switch light interface and a monitoring voltage regulating interface, and the central control room can issue voltage regulating commands and switch lights.

16. It has automatic reset function. When power transmission is resumed after power failure, full voltage will start preheating, and it will be automatically adjusted according to the working setting after starting.

17, with lightning protection device and safety grounding.

18. Other requirements and explanations.