KDZD3683 Distribution Transformer Copper Aluminum Material Discrimination Tester (Transformer Material Analyzer) is a new generation multifunctional transformer comprehensive tester developed by our company, which integrates transformer winding copper aluminum material analysis and judgment, capacity measurement, no-load loss measurement, load loss measurement, DC resistance measurement, transformation ratio, turn ratio measurement, and transformer code level judgment.


The instrument comes with a high-performance rechargeable lithium battery, which can work without the need for an external power source. The battery can be fully charged once and can continuously measure 200 units; Internal digital synthesis of three-phase standard sine wave signals eliminates the need for external three-phase testing power supply, voltage regulator, current boosting and other auxiliary equipment when measuring transformer capacity and short-circuit losses, simplifying wiring;


The instrument integrates a high and low winding copper and aluminum material analysis and diagnosis system. By integrating the number of turns of the transformer winding and the data of the transformer itself, a probability distribution model that affects the material of the transformer coil is established, and the probability function for coil material analysis is determined. Based on the measured values such as transformer capacity, high and low voltage coil turns ratio, package height, and package thickness, the copper aluminum factor of the coil is calculated to accurately determine the material of the transformer coil.

 

1. Determination of winding material:
The instrument integrates a winding copper aluminum material analysis and diagnosis system, using non-destructive testing method. By integrating transformer ratio data and transformer body appearance data, a probability distribution model affecting transformer coil material is established. Based on transformer capacity, high and low voltage coil turns ratio, package height, package thickness and other measurement values, the copper aluminum parameters of the coil are calculated to accurately analyze and determine the copper and aluminum materials of the transformer winding.
2. Capacity measurement:
The instrument is equipped with a rechargeable lithium battery and a three-phase pure sine wave inverter power supply. The output voltage is automatically adjusted and has functions such as soft start, soft stop, overcurrent, and low-voltage protection. It can measure the capacity and determine the model of the distribution transformer without the need for an external power supply. At the same time, it displays the transformer impedance voltage and load loss converted to rated temperature and rated current.
3. DC resistance test:
The DC resistance measurement integrates small and medium-sized transformers and voltage transformers, using power technology with multiple current levels, wide measurement range, fast measurement speed, and the ability to automatically select current based on load, resulting in higher measurement accuracy.
4. Load loss measurement:
Display three-phase voltage, three-phase current, and three-phase power, automatically calculate the impedance voltage percentage of the transformer, convert it to the load loss at rated temperature and rated current, automatically determine the iron core model of oil immersed or dry-type distribution transformers, and have an alarm adaptive prompt function during the testing process, which is convenient for on-site users to use.
5. Measurement of no-load loss:
The instrument displays three-phase voltage, three-phase current, and three-phase power, automatically calculates the no-load current of the transformer converted to rated voltage and waveform distortion corrected no-load loss, and displays the model of the iron core of the oil immersed or dry-type distribution transformer.
6. Measurement of no-load and load losses of three-phase transformers using single-phase power supply:
Can be used to inspect single-phase defects in transformers or for situations where there is no three-phase power on site. The instrument can record data from three single-phase measurements and calculate the no-load current, no-load loss, impedance voltage, and load loss of the transformer based on different connection methods.
7. Within the allowed measurement range of the instrument, it can be directly measured. If it exceeds the measurement range, external voltage and current transformers can be connected. The instrument can set the transformation ratio of the external voltage and current transformers and directly display the values of the applied voltage and current.
8. Ratio and turn ratio measurement: By knowing the auxiliary winding, quickly and accurately measure the transformer ratio and turn ratio.
9. Adopting a 7.0-inch, 800 * 480 resolution, 1200 ultra-high brightness, wide temperature range, wide viewing angle, and clear visibility under sunlight industrial grade color LCD screen.
10. Dual use of AC and DC, powered by lithium battery or 220V AC charger with adaptive power supply.
11. Intelligent charging and discharging management, remaining battery display, low battery voice alarm, automatic backlight adjustment, saving battery power.
12. Clock and date display without power failure; The data storage methods are divided into local storage and USB storage. Local storage can store 1000 pieces of test data, and local storage can be converted to USB storage; It can be edited and printed directly on the computer.
13. Micro embedded thermal printing function, fast and silent.
14. Intelligent human-computer interaction interface: With complete electronic assistance, all operations have wiring diagrams and text descriptions, making the operation intuitive and simple,
15. Intelligent voice assistant prompt function, real-time monitoring of abnormal situations during the testing process, and issuing voice prompts for users to make accurate and quick adjustments.
16. It has a specially designed on-site low-voltage short-circuit connection, which does not require screws and wrenches, and can firmly short-circuit the tested transformer terminal for easy on-site testing.
17. Internally, it can integrate Bluetooth communication module and WIFI hotspot module, which can be connected to mobile phones or tablets for communication, operate the instrument through dedicated APP software, download test data, etc.
18. Small size, light weight, easy to carry and use.

1. Input characteristics
Active part: Voltage measurement range: 0~10V
Current measurement range: 0~10A
Passive part:
Voltage measurement range: 0~750V wide limit (can be connected to an external voltage transformer).
Current measurement range: 0~100A internal automatic switching range (can be connected to an external current transformer).
2. Measurement accuracy:
Voltage, current, frequency: ± 0.2%
Power: ± 0.5% (Cos Φ>0.1), ± 1.0% (0.02)
3. Analysis of winding materials: copper, aluminum
4. Capacity measurement range: 30kVA~125000kVA
5. DC resistance test:
Output current: 0-12A
Measurement range: 0.5m Ω -25K Ω
Test accuracy: 0.2%
Resolution: 0.1
6. Applicable transformers:
Voltage levels: 10KV, 20KV, 35KV, 66KV, 110KV, 220KV, 330KV
Oil immersed transformer type: S9 \ S11 \ S13 \ S15 \ non-standard transformer
Dry type transformer types: SCB type, SGB type, photovoltaic type
7. Transformer ratio test: accuracy ± 0.2%
8. Transformer turn ratio test: accuracy ± 0.2%
9. Intelligent electronic ruler: measuring range of 0mm-150mm, accuracy of 0.01mm
10. Temperature acquisition: Range: -50 ℃~+70 ℃, accuracy: 0.1 ℃
11. Power supply: AC 85-264VAC and built-in lithium battery
12. LCD display: 7 inches, 800 * 480 resolution, 1200 brightness
13. Charging power supply: 85-264VAC
14. Printer: Micro embedded printer
15. Keyboard: Multi functional embedded keyboard input
16. Calibration method: automatic
17. Working temperature: -10 ℃~40 ℃
18. Environmental humidity: 10%~85%
19. Storage temperature: -20 ℃~50 ℃
20. Dimensions: 320mm × 270mm × 145mm
21. Weight: 7.1kg (excluding testing line)