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Help CenterThlxd-zm-50a, Thlxd-zm-120a Tunnel Lighting Energy Saver, Intelligent Street Lamp Voltage Regulation and Energy Saving Device
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THLXD-ZM-50A, THLXD-ZM-120A Tunnel Lighting Energy Saver, Intelligent Street Lamp Voltage Regulation Energy Saving Device. Its function is to operate mercury lamps and high-pressure sodium lamps at a reduced voltage during the second half of the night, and convert incandescent lamps to direct current operation. This device has been installed on multiple street lamp lines successively. After years of actual operation, it has been proven that the use of this device is successful. The energy-saving effect of mercury lamps and high-pressure sodium lamps is over 25%, and that of incandescent lamps is over 40%. Moreover, the average service life of incandescent lamp bulbs is increased by 6 - 7 times. Practice has proven that this energy-saving device requires less investment and produces quick results. Generally, the entire investment can be recovered within half a year.
Tunnel Lighting Energy SaverThe differences among various circuit types lie in the amplifier circuit and the sampling circuit. Generally, they can be divided into three categories: magnetic amplifier circuits, electron tube amplifier circuits, and semiconductor amplifier circuits. Among them, the power voltage regulation and stabilization device using an electron tube amplifier circuit is called an electronically regulated power voltage regulation and stabilization device.
The electronically regulated power voltage regulation and stabilization device consists of two major parts: an AC circuit and a DC control circuit.
The AC circuit includes an autotransformer controller (N1, N2) and a variable reactor N3.
The DC control circuit mainly includes circuits for sampling, amplification, and protection.
When the output voltage changes for some reason, after sampling and amplification, the current passing through the DC coil of the magnetic amplifier, the inductance and reactance of the AC coil of the magnetic amplifier, and the current passing through the variable reactor N3. The boosting effect of the autotransformer controller is enhanced, thereby causing the output voltage to rise and compensating for the previous output voltage. Conversely, when the output voltage rises, the step-down effect of the autotransformer controller is enhanced, and it can also automatically compensate for the previous rise in the output voltage.
Tunnel lighting energy saver parameter design
Let the input voltage be Ua～Ub.
The output power is P2.
The output voltage is U2.
The input voltage U1=(Ua＋Ub)/2.
The load current IL=P2/U2
Core cross-sectional area: Select a core with a power of 2×P2 (check the table).
Take the saturation magnetic induction intensity BS=2.1T.
For non-saturation, take B1=0.8Bs.
The primary turns N1=(U1×104)/4.44fBPSC.
The secondary turns N2=(U2×104)/4.44fBPSC.
The total number of turns of the resonant winding: NCT = the number of primary turns.
NCT=(UC×104)/4.44fBPSC (where UC is the operating voltage of the capacitor). Since a part is shared, then NC=NCT－N2.
The initial compensation winding Nk=0.1N2
Resonant capacitor reactive power PC = 2P2
Resonant winding current IC = PC/UC
Capacitance C = IC/2πfU2
Output winding current I22 = IL2＋IC2
Primary winding wire diameter d12 = 1.132I1/J
Output winding wire d22 = 1.132I2/J
Resonant winding wire diameter dC2 = 1.132IC/J
Compensation winding wire linear diameter Dk2 = 1.132IL/J
THLXD-ZM-50A, THLXD-ZM-120A Tunnel lighting energy saver, Intelligent street lamp voltage regulation energy-saving device product advantages
1. Intelligent automatic control system
Soft start/Full voltage start: Users can choose soft start or full voltage start according to different types of lamps to ensure the normal start of lamps and extend their service life. The start time is adjustable.
Highly intelligent energy saving: According to different lighting fixtures and their working conditions, the energy-saving rate can reach 20%-40%.
Voltage stabilization and constant voltage: The energy-saving control cabinet dynamically tracks the input voltage and automatically adjusts the energy-saving gear to make the lamps work in a constant voltage state, so as to ensure the normal operation of the lamps and achieve the maximum energy-saving effect.
Multi-layer protection function: It has the functions of low current bypass, low voltage bypass, overload (overcurrent) bypass, automatic bypass in case of failure and alarm. Users can select “On/Off” these functions through the DIP switch by themselves.
Bypass system: Dual circuits for power saving and bypass.
Manual/Automatic adjustment: Both bypass and power-saving levels can be adjusted manually and automatically. Even if the power-saving control cabinet malfunctions, the normal operation of the lighting power supply system can be guaranteed.
Automatic memory recovery function after power failure: Automatically restore all settings before the power failure.
Remote control interface: It has RS-485 or RS-232 interfaces for computer and remote automation control; it can be used for remote control upgrade and on-site computer program modification.
Optional functions: Multi-period voltage regulation function, celestial clock automatic tracking control of switch time function, anti-theft alarm function, etc.
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