Transformer capacity characteristic tester

Product actual shot

Product Introduction

Transformer capacity characteristic testerIt is an instrument for measuring the capacity of distribution power transformers, measuring transformer no-load and short-circuit losses, and has harmonic analysis function, which facilitates the analysis of on-site power grid quality. The circuit design of the instrument is exquisite and the idea is *. The instrument adopts * six channel synchronous AC sampling and digital signal processing technology internally, successfully solving the problems of low power factor measurement and synchronous measurement and calculation of multiple signals under mains power conditions. At the same time, the instrument measurement introduces necessary calibration (such as voltage calibration, current calibration, temperature calibration, frequency calibration), which makes its performance *, function *, small size, light weight, simple and convenient operation, accurate and reliable data, and can replace traditional instrument testing methods. It can display and record all measurement data that users are concerned about, and can be used as a high-precision communication indicator instrument on site. The instrument is powered by a large capacity lithium battery to ensure an extended usage time, greatly improving work efficiency and reducing labor intensity.

Features

1. Measurement of load loss:
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.
2. Measurement of no-load losses:
The instrument displays three-phase voltage, three-phase current, and three-phase power. The instrument displays the distortion rate of the applied power waveform, automatically calculates the no-load loss of the transformer converted to rated voltage and corrected for waveform distortion, and displays the model of the iron core of the oil immersed or dry-type distribution transformer.
3. Single phase measurement:
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.
4. Measurement of zero sequence impedance:
The measurement of zero sequence impedance is applicable to transformers with neutral points in star shaped connections on the high voltage side. The instrument can record zero sequence impedance, zero sequence reactance, zero sequence inductance, impedance angle, and zero sequence resistance.
5. Capacity measurement:
The instrument is equipped with a rechargeable lithium battery and can output a three-phase sine wave inverter power supply. The output voltage is automatically adjusted and has soft start and soft stop functions. It can measure the capacity and determine the model of the distribution transformer without the need for any external power supply. At the same time, it displays the impedance voltage of the transformer and the load loss converted to rated temperature and rated current.
6. 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.
7. The instrument has harmonic analysis function, which can measure the content and total distortion rate of multiple harmonics, and has original waveform and bar chart display.
8. The instrument adopts a large screen LCD display, which can display three-phase voltage, three-phase current, three-phase power, three-phase average voltage, average current, three-phase total power and related data on the same screen. Display a Chinese menu with Chinese prompts and simple operation.
9. Dual use of AC and DC: lithium battery power supply or 220V AC charger power supply adaptive.
10. Intelligent charging management, remaining battery display, low battery alarm, automatic backlight adjustment, saving power.
11. Clock and date display without power failure; The data storage methods are divided into local storage and USB storage. Local storage can store 200 pieces of test data, and local storage can be converted to USB storage; The USB flash drive stores data in Word format, which can be directly edited and printed on a computer.
12. Thermal printer printing function, fast and silent.
13. The human-computer interaction interface is more user-friendly: the status bar at the top of the screen displays the real-time status of the USB drive insertion, and when operating unconnected devices, corresponding unconnected prompt information is displayed.
14. Small size, light weight, easy to carry and use.

technical indicators

1. Basic measurement accuracy: Voltage, current ± (reading x 0.2%+2 words) Power (0.2 ≤ cos π≤ 1) ± (reading x 1.0%+2 words) Capacity ± (reading x 10%+2 words)
2. Capacity measurement range: 30kVA to 65000kVA
3. Voltage measurement range: AC 50V~850V
4. Current measurement range: AC 0.5A~100A
5. Working temperature: -10 ℃ to 40 ℃
6. Environmental humidity: 10% to 85%
7. Storage temperature: -20 ℃ to 50 ℃
8. Dimensions: 320mm × 270mm × 145mm
9. Weight: 5kg (excluding testing line)

Yangzhou Guohao Electric is a professional manufacturerTransformer capacity characteristic testerOur manufacturer offers high-quality products at affordable prices. If you have any product needs, please feel free to contact us by phone!