In DL/T 724-2000 "Technical Code for Operation and Maintenance of Battery DC Power Supply Devices in Electric Power Systems," Article 5.3, and in GB/T19826-2005 "General Technical Conditions and Safety Requirements for DC Power Supply Equipment in Electric Engineering," Articles 5.2 and 6.3, clear regulations and technical requirements are specified for the voltage stabilization accuracy, current stabilization accuracy, ripple factor, charger efficiency, and other technical indicators and testing methods of charging devices. The test content mainly involves adjusting the AC input voltage of the charger within ±10% of the rated voltage using a voltage regulation device (such as a transformer) and varying the DC output voltage and output current of the charger within specified ranges (voltage adjustment range from 90% to 115% of the rated value, current adjustment range from 0% to 100% of the rated value) through a load adjustment device (such as a discharge resistor). Voltage, current, and ripple values are measured within the adjustment range, and calculations are performed to obtain the voltage stabilization accuracy, current stabilization accuracy, ripple factor, charger efficiency, etc.

The comprehensive DC power supply tester is a product derived based on relevant national requirements for the operation and maintenance procedures of DC power supplies. It primarily includes functions such as voltage stabilization accuracy measurement, current stabilization accuracy measurement, ripple factor measurement, etc. Additionally, it comes with comprehensive DC power supply tester data analysis software to perform various analyses on measurement data uploaded to a computer.

This is a specialized software for DC power supply testing and analysis.

• Utilizes ARM and DSP processors along with 16M bytes of FLASH memory.
• Features a touchscreen interface for simpler and more convenient operation.
• Capable of saving and recalling measurement data or uploading it to a PC for further analysis.
• Modular structure ensures rational design and reliable operation.
• Operates with a Chinese menu, making it easy to learn and use.
• Supports updating the instrument's software using a USB drive.
• Comprehensive analysis of measurement data can be performed on a PC using the DC power supply comprehensive tester data analysis software.
• Equipped with a large LCD screen displaying a fully Chinese interface, allowing for human-machine dialogue operation, which is user-friendly.
• Fully automatic testing: Simply set relevant test parameters based on charger technical specifications, and the device will automatically adjust AC voltage, load resistors, perform parameter tests, automatically record test values, and stop the test upon completion.
• Complete communication capabilities include RS232 and USB interfaces. Data can be transferred to a computer for database management, enabling long-term historical data storage and analysis. Data can also be transferred via USB drives, allowing for immediate saving, editing, and printing anytime.
• Powerful data processing functions allow for multiple measurement results from the DC power supply comprehensive tester to be displayed as curves, generate reports, and conduct comprehensive calculations and analyses, providing accurate judgments.
• Employs a three-phase automatic CNC voltage regulator: Offers high output precision and power, with high voltage stability, achieving a single-phase current up to 20A.
• Modular combination structure: Uses a modular combination structure that is compact and lightweight, facilitating vehicle transportation and mobile testing at various substations.

Three-Phase Voltage Regulator and Discharge Measurement Load

Three-Phase Voltage Regulator

• Power: 15KVA
• Rated Current: 50A
• Operating Temperature: -20℃ to +55℃

Discharge Measurement Load

• Power Supply: AC220V±15% at a frequency of 50Hz
• Rated Discharge Current: ≤50A (customizable current)
• DC Voltage (Vdc): 0～280V, accuracy ±0.5%
• Ripple Voltage (Vpp): 0～10V, accuracy ±0.5%
• DC Current Measurement: 0～50A, accuracy ±1%
• Discharge Current: 0～50A

Additional Specifications

• Memory Capacity: 128Mbit FLASH
• Display: 320×240 color graphic LCD with touchscreen
• Communication Interface: USB

Dimensions and Weight

• Main Unit Dimensions: 500×360×420(mm)
• Main Unit Weight: 15Kg
• Voltage Regulator Dimensions: 260×350×600(mm)
• Voltage Regulator Weight: 18Kg

Applicable Voltage Levels

• 110V and 220V