Product Overview
Dari Electric HCVA-IV Transformer multifunctional fully automatic comprehensive tester is a new generation of innovative CT and PT testing instruments launched into the market after extensive market research, rigorous professional testing, and certification by authoritative departments. The device adopts high-performance data processors and microcomputer control architecture, advanced manufacturing processes, ensuring stable and reliable product performance, complete functions, high automation, and high testing efficiency, leading domestically. It is a professional testing instrument for testing current transformers and voltage transformers in the relay protection and high-voltage insulation industries. The transformer volt-ampere characteristic comprehensive tester is a fully automated PT and CT characteristic testing instrument. The tests that can be completed include: CT volt-ampere characteristic test, PT volt-ampere characteristic test, CT polarity test, PT polarity test, CT ratio and polarity test, and PT ratio and polarity test, automatically calculating the error curve at any point for CT, CT/PT ratio error and other result parameters.
The instrument automatically collects, analyzes, stores, and prints test data, and can also store data via USB drive. In addition, the display uses an 8-inch color large screen with high resolution of 1024*768, full touch operation, and can display test curves in real time, allowing immediate observation of test conditions so that test personnel can judge product faults in real time. The test report not only provides detailed test curves but also lists test data arranged according to preferred number series, and indicates the test time and print time, so it can be saved as original test data. Due to its large output capacity and complete functions, this product is very suitable for on-site testing and calibration of various specifications of CT and PT.
Product Features
1. Fully automatic tester
Simply set the maximum output voltage and maximum output current, and the instrument will automatically increase voltage or current from zero to perform various tests. During the test, it automatically records test data, plots volt-ampere characteristic curves, 10% and 5% error curves, and automatically calculates the knee point value. This eliminates tedious steps such as manual voltage adjustment, manual recording and sorting, and curve drawing, greatly improving testing efficiency. Test results can be stored in the instrument, printed on-site or later, or transferred to a computer via USB for processing and printing. Operation is fast, simple, and easy to master.
2. Comprehensive functions
The functions of the device are as follows:
CT test: volt-ampere characteristic curve PT test: volt-ampere characteristic curve
Automatic calculation of curve knee point Automatic calculation of curve knee point
5% and 10% error curves 5% and 10% error curves
Ratio, polarity Ratio, polarity
Ratio error, phase error measurement Ratio error, phase error measurement
Secondary loop load test, Secondary loop load test
Secondary winding AC withstand voltage Secondary winding AC withstand voltage
Secondary DC resistance test Secondary DC resistance test
Primary current flow test
3. Output hold
It has a voltage boost hold function for metering detection and secondary AC withstand voltage tests. It has a current boost hold function for secondary loop inspection.
4. True RMS sampling
All voltage and current signals are sampled as true RMS values. Please use a true RMS meter for calibration.
5. Single power supply, easy operation
Only a single input power supply, AC220V, is required, abandoning the outdated method of some manufacturers that require a 380V power supply to meet technical requirements.
6. USB storage
Test data can be transferred to a PC via USB for processing, display, printing, and storage of data and curve reports, greatly facilitating report compilation for users.
7. Date and clock
The instrument has a built-in system time, and the device automatically records the test time during testing for easy storage and review of test records.
8. Non-contact testing, high safety
The instrument uses non-contact testing methods to ensure high safety for operators.
