Profile:
KDHG-518B is an advanced CT/PT analyzer utilizing high-performance DSP and ARM technology for reliable and automated testing. Based on the low-frequency method, it outputs only 180V to test CTs with knee-point voltages up to 65KV. The unit features a 5.7-inch transflective LCD, stores up to 2000 test records, and comes with PC software for detailed analysis and Word report generation. All CT tests except load use the same wiring connection.
Features:
1. Comprehensive testing for protection CTs (including TP class), metering CTs, and protection PT electromagnetic units;
2. Automatically calculates knee-point voltage/current, 10%/5% error curve, ALF, FS, Ts, Kr, and inductance parameters;
3. High-precision ratio and phase error measurement: ratio accuracy ±0.05%, phase accuracy ±2min, supports 0.2S class CT testing;
4. Wide CT ratio range: 1-50000;
5. Based on low-frequency test principle: outputs max 180V AC and 12Arms (36A peak) to test CTs with knee-point up to 65kV;
6. Compliant with GB20840.1 (IEC60044-1), GB20840.2 (IEC60044-6), GB20840.3 standards;
7. Stores up to 2000 test sets with non-volatile memory; data export via U disk for PC analysis and Word report generation;
8. 5.7-inch graphic transflective LCD visible in direct sunlight;
9. Simple one-key testing: completes CT DC resistance, excitation, ratio, and polarity tests with same wiring (except load test);
10. Portable design weighing less than 9kg with aluminum carrying case included.
Parameter:
Test purpose: protection CT, protection PT
Output: 0~180Vrms, 12Arms, 36A(peak)
CT ratio measurement
The value ranges from 1 to 50000
Accuracy: ±0.2%
PT ratio measurement
The value ranges from 1 to 50000
Accuracy: ±0.2%
Phase measurement
Range: ±2min
Accuracy: 0.5min
Secondary winding resistance measurement
The value ranges from 0 to 300 ohms
Accuracy: 0.2%±2mΩ
Ac load measurement
Range: 0 to 1000VA
Accuracy: 0.2%±0.02VA
Input voltage: AC220V±10%, 50Hz
Working environment: Temperature :-10C~50℃, humidity :≤90%
Size, weight: Size 340mm x220mmx330mm weight <9kg
Aluminum case size: 430mm x270mm x500mm
