EL test string power supply

EL test string power supply

Model:FT-150010
Brand:fengtu
EL test series power supply is used in the total inspection project of photovoltaic power station, which can increase the speed and efficiency of large-scale detection by connecting series branch....

1.Introduction to EL test string power supply products

EL test string power supply is also called string type EL power supply. EL test string power supply is used in the full inspection project of photovoltaic power stations. It can be powered through the string branch circuit to increase the speed and efficiency of large-scale inspection. When paired with a string camera, It can realize an efficient test mode for string detection when the string is powered on. The EL test string power supply is developed by our company based on the reverse power-on characteristics of photovoltaic power station strings. It converts alternating current into direct current and inputs it into the panel to stimulate electroluminescence, thereby testing the internal defects of EL.

FT-150010 is a research and development program-controlled power supply that controls the electrical performance and safeguard measures of EL test string power supply through the program software system. Its pro version is configured with high-quality software, using higher-quality imported electronic components and an open programming host to better ensure the stability and safety of string detection.


2. Technical parameters of EL test string power supply

1. ELEL test string power supply for photovoltaic use

Specification FT-150030 FT-150050 FT-150010
Electric energy parameters 0~1500V; 0~3A 0~1500V; 0~5A 0~1500V; 0~10A
quality Programmable linear domestic Program-controlled custom import Program-controlled custom import
Scenes EL detector single block/string test EL detector single block/string test EL detector + drone EL test
Voltage output 0~1500V 0~1500V 0~1500V
Voltage accuracy 1V 0.001V 0.001V
Compensation voltage 12V 96V 96V
Current output 0~3A 0~5A 0~10A
Current accuracy 0.1A 0.001A 0.001A
Power accuracy ±0.1A;±1V ±0.001A; ±0.001V ±0.001A; ±0.001V
Power output 0~4.5KW 0~8KW 0~16KW
Power stability ±0.1% ±0.002% ±0.002%
Output accuracy ±0.1% ±0.001% ±0.001%
Output efficiency >80% >95% >95%
Output linear regulation rate ±0.5% ±0.005% ±0.005%
Output load regulation ±0.5% ±0.005% ±0.005%
Input voltage 220VAC 380VAC 380VAC
input frequency 50/60Hz 50/80Hz 50/100Hz
Input power factor >0.75 >0.5 >0.5
Power on time Manual control Program-controlled scheduled automatic power-on and automatic power-off
Insulation withstand voltage input to output 2500VDC
Insulation withstand voltage output to shell 500VDC
OVP adjustment range 0-100% front panel adjustment (or digital interface)
OVP adjustment accuracy ±1% of nominal value

2. ELEL test string power supply/programmable control system

Specification FT-150030 FT-150050 FT-150010
Programmable control system Control current and voltage output and monitor power supply working status The program control panel can directly set various program control indicators of the power supply.
Programmable remote interface RS-485C, analog interface (0-10V)
Program control panel - The power panel can be programmed to control power on and off times, scheduled power on, protection thresholds, etc.
Reverse current protection - The reverse current impedance threshold can be set to prevent string current backflow.
Short circuit protection Photovoltaic string reverse connection short circuit protection to prevent photovoltaic modules from diode breakdown
Programmable buffer protection - Cache-type photovoltaic groups are connected and powered off in series to prevent large currents from penetrating the photovoltaic panels.
Programmable steady-state output - Adaptively matches current and voltage according to different power components in the string (to avoid breakdown of component diodes)
Digital voltage programming accuracy - ±0.001% ±0.001%
Digital current programming accuracy - ±0.001% ±0.001%
Programmable rise time - 0~10s can be set
Programmable fall time - 60ms (no load); 250ms (10% load); 2.5s (full load)
Voltage fluctuation control 0.1V/ms~10V/ms 0.001V/ms~0.002V/ms
Current fluctuation control 0.1A~0.2A 0.001A~0.01A, or 1NF
Fluctuation control minimum time 5ms 0.1ms
Panel display Digital display insulated control panel Host program control panel
Panel control - The power supply current and voltage protection limit value OVP can be set
Photovoltaic EL power-on characteristics High and low current switching test (manual switching) High and low current switching test (automatic switching by program)
Number of components powered on simultaneously Can simultaneously complete the detection of power supply access for 1 to 32 photovoltaic panels (within 1500V)
Photovoltaic power access port Combiner box/inverter/string port/module port
Steady state output module - Stable power supply ensures uniform electrical energy parameters of each component in the string (to prevent photovoltaic panel breakdown)
Thermostatic control module Air cooling continuous heat dissipation and temperature control Programmable electronic temperature control of 45°C ensures 24-hour uninterrupted work
Overload protection - The overload threshold can be set, and the output will automatically stop when overloaded to prevent the power supply circuit breaker transformer from being burned.
Output short circuit automatic protection Protects power failure and personal danger caused by power station line or component string breakage, and the power supply automatically cuts off the power
Input voltage automatic protection - Protects power components from burning due to excessive input voltage fluctuations
Phase loss protection Can protect power supply damage and accidents caused by three-phase open circuit
Internal overheating protection Dynamic heat dissipation according to the internal temperature ensures that the power supply will not be burned due to excessive temperature.
High voltage isolation protection Ensure the safety of operators working with high-voltage electricity on the shell and panel of the machine
input line 2 meters (6 square meters)
Wiring AC220 Three-phase three-wire + ground wire
volume and weight 430x88x450mm; 13kg 17kg 26kg

Note: The EL test string power supply is a high-power DC output power supply, which is high-voltage equipment. The program control system is customized for photovoltaic power station scenarios, which can better ensure the safety of manual construction on site. However, high-voltage equipment is still high-risk and high-risk equipment. Please strictly follow the operating instructions and standardize wiring and operation. If the power supply is protected, contact the manufacturer as soon as possible to solve the problem. Do not perform wiring operations without authorization to prevent danger! ! !

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