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KDHG-518A Touch Screen CT/VT Analyzer | Fully Automatic Transformer Tester
KDHG-518A Touch Screen CT/VT Analyzer | Fully Automatic Transformer Tester

KDHG-518A Touch Screen CT/VT Analyzer | Fully Automatic Transformer Tester

Applications:

The KDHG-518A Touch Screen CT/VT Analyzer is a versatile, next-generation testing instrument designed for the power industry. It is used for the comprehensive testing of various types of Current Transformers (CTs), including protection, metering, and TP class, as well as electromagnetic and capacitive Voltage Transformers (VTs). This device is essential for power plants, substations, and electrical testing laboratories to ensure the accuracy, safety, and reliability of transformer installations by performing a wide range of diagnostic tests.

  • Response within
    24 hours

  • Free warranty
    12 month

  • On-line training
    Support

Profile:

The KDHG-518A is a high-performance, fully automatic analyzer developed by Wuhan Kaidizhengda Electric Co., Ltd. Based on advanced ARM technology and a user-friendly graphical touch screen interface, this device automates complex testing procedures for high efficiency and reliability. It utilizes an advanced low-frequency testing method to accurately measure CTs with knee point voltages up to 60kV. The analyzer can store up to 1,000 sets of test data, which can be transferred to a PC via Bluetooth for detailed analysis and automatic generation of Word reports. Its compact and lightweight design (under 9kg) makes it highly portable for field use.

Features:

  • Comprehensive CT/VT Testing: Supports a full range of tests for CTs (excitation, ratio, polarity, winding resistance, burden, ratio/phase error) and VTs (excitation, ratio, polarity, winding resistance).
  • Automatic Parameter Calculation: Automatically calculates and displays key CT parameters, including knee point voltage/current, 10% (5%) error curves, Accuracy Limit Factor (ALF), Instrument Security Factor (FS), secondary time constant (Ts), remanence factor (Kr), and inductance.
  • Multi-Standard Compliance: Meets various national and international standards, including GB1208 (IEC60044-1), GB16847 (IEC60044-6), GB1207, GB20840, and IEC61869, automatically selecting the appropriate standard for analysis.
  • Advanced Low-Frequency Testing: Employs an advanced low-frequency testing principle, capable of testing CTs with a knee point voltage as high as 60kV.
  • User-Friendly Touch Screen: Features an intuitive, full-color graphical user interface for easy operation and data visualization.
  • Data Management & Reporting: Can store 1,000 sets of test data (non-volatile memory). Data can be uploaded to a PC via Bluetooth for analysis and automatic Word report generation.
  • One-Key Operation: Simplifies the testing process with a one-key function to automatically complete CT resistance, excitation, ratio, and polarity tests with a single wiring setup.
  • Portable and Lightweight: Weighs less than 9kg, making it easy to transport and use in various field environments.

Parameter:

The technical specifications of the KDHG-518A are defined by its high-precision measurement capabilities and versatile testing functions.
Parameter Specification
Model Number KDHG-518A
Power Supply AC 220V ±10%, 50Hz
Output 0~180Vrms, 10Arms, 20A (Peak)
Voltage Measurement Accuracy ±0.2%
CT Ratio Measurement Range: 1~30000, Accuracy: ±0.2%
VT Ratio Measurement Range: 1~10000, Accuracy: ±0.5%
Phase Measurement Accuracy: ±5min, Resolution: 0.5min
Secondary Winding Resistance Range: 0~300Ω, Accuracy: 0.2%±2mΩ
Secondary Burden Measurement Range: 0~300VA, Accuracy: 0.2%±0.2VA
Operating Environment Temperature: -10°C~50°C, Humidity: ≤90%
Dimensions (W*D*H) 355mm × 285mm × 150mm
Weight < 9kg