Handheld Transformer Capacity Tester DYBR-2000

Product introduction
    In China, the two-part electricity price is implemented for large industrial users, that is, the electricity price is composed of kilowatt hour electricity price and basic electricity price. According to the explicit provisions of the National Development and Reform Commission, in Chapter III "Pricing Method of Sales Electricity Price" of the "Interim Measures for the Administration of Sales Electricity Price", it is stipulated that residents' living, agricultural production electricity use a single system electricity price, and industrial, commercial and other users receive more than a certain scale of transformer capacity, so the two-part electricity price is implemented. It is precisely because part of the two-part electricity price is determined by the transformer capacity, therefore, In order to seek illegitimate interests, some lawbreakers use transformers with actual capacity and nameplates that do not meet the requirements, or steal nameplates, or order transformers with non-standard capacity, to achieve the purpose of paying less electricity bills, causing serious economic losses to the state and power grid enterprises, and seriously endangering the normal operation of power supply enterprises.
    In view of the above problems of bad power users escaping basic electricity charges and increasing capacity privately, and in combination with the actual needs of users, our company independently developed a hand-held transformer capacity tester, which is convenient to carry and accurate to test, and is highly praised by users.
    The software uses a high-speed Cortex M3 processor and 24 bit high-speed ADC to measure and calculate the electrical parameters, with a fully graphical interface and a true color display resolution of 320 × 240. The man-machine interface for key operation is friendly and easy to carry.  

Functional features
1) 3.2 inch TFT color LCD screen, rich in color, full Chinese menu and operation prompts to achieve friendly man-machine dialogue.
2) Built in lithium battery, low power consumption, can be recharged repeatedly, and the standby time for one charge is more than 20h. Real time display of battery power.
3) The instrument is a hand-held device, small, portable and convenient to carry.
4) The power switch of the instrument adopts long-life membrane touch button and one button switch.
5) It can accurately measure the capacity of various distribution transformers. Passive measurement is convenient and accurate.
6) The internal power supply automatically generates three-phase high-power test power supply.
7) Capacity measurement range: 20kVA~100000kVA.
8) The user can print the test data through the Bluetooth printer at any time (optional).
9) Real time clock display.
10) A large amount of historical data can be stored for the transformer test results.

Technical indicators
1. Input Properties
Voltage measurement range: 0~10V
Current measurement range: 0~5A
2. Accuracy
Voltage: ± 0.5%
Current: ± 0.5%
Power: ± 0.5% (Cos Φ> 0.2),±1.0%(0.023. Working temperature: - 10 oC~+40 oC
4. Charging power supply: AC 160V~260V
5. Insulation:
   (1) The insulation resistance of the voltage and current input terminals to the enclosure is ≥ 100M Ω.
   (2) The working power supply input end bears power frequency 2kV (effective value) to the shell, which lasts for 1 minute.
6. Host volume: 220mm × 110mm × 80mm
7. Weight: 1kg (excluding accessories)