Street Lighting Power Efficiency Control System

Detailed Product Description
Working principle of SLM-T:
1) Researched and developed successfully by using non-polar set point
adjustments and voltage regulating technology for high impedance
2) Input voltage is inputted to SCM by limited sampling, low voltage filtering,
signal reshaping, A/D conversion
3) SCM sends out the control signal, after signal is amplified and the power
driving switched, it will adjust the output voltage
4) Compared with the currently used tune-reactance voltage regulation
technique all over the world, this technology does have its advantage
a) Will not produce harmonic waves and can start the load directly
b) No limitation to load current surge coefficient
c) Thevenin input network has a high impedance state
d) Suppresses transient input voltage and current
e) Good effects during the actual application in the field and have good
stability under load running

SLM-T technical data:
1) Supply voltage: AC 380V
2) Frequency: 50Hz
3) Control voltage: AC 220V
4) Working voltage: AC 205V-AC 240V
5) Output voltage (voltage wave form): no distortion
6) Content of harmonic: <1%
7) Environmental temperature
8) Operating temperature: -10 - 45°C (at altitudes below 2km)
9) Storage temperature: -25 - 60°C
10) Protection:
a) Overload protection when load current: ≥1.25Ie
b) Over-temperature protection when temperature rises above 80
(Ta=25°C)
c) Under-voltage protection when output voltage <180V
d) Insulation: 2.5kV insulation between power supply control circuit
and external shells
11) Applicable range:
a) Applies to street lamps, lighting lamps and lanterns
b) Gas discharge lamps such as high voltage sodium lamps, mercury
lamps, halogen lamps

Key characteristics of SLM-T products:
1) Microcomputer used for control, easy to use and user-friendly
2) Runs on its own, can be switched on/off by customer's auto-control system
3) Warm-up time can fully satisfy the load start-up
4) Step-to control power saving rate (power saving rate I, II, III, IV)
5) Auto-alarm by system bypass when the current is 1.25 times than the
rated current
6) Auto-alarm by system bypass when output voltage is under 180V
7) Load current auto-inspecting function
8) System switches to full voltage output when no load current is detected
9) System switches to warm-up state when load current is detected
10) Manual forced bypass function, failure bypass function

SLM-T protection functions:
1) Over load protection
2) Over temperature protection
3) Output under voltage protection

Application Scope:
Municipal street lighting saving and protection, suitable for multi-types of lamps
with capacitors and electronic energy saving lamps etc
Dock / port lighting, container yard lighting, logistics center lighting, station
/ stop lighting, gas station lighting etc
Freeway lighting and tunnel lighting
Square / plaza and airport lighting
Underground garage 24h-self-adaption lighting
Large-size billboard lighting
Secure lamp and equipment