Profile:
KDZR-ZH is a tester integrating DC resistance and turns ratio measurement functions, employing an embedded Linux operating system and an A7+M4 dual-core architecture. With a single connection, it can perform automatic three-phase DC resistance testing (including unbalance calculation) and comprehensive turns ratio testing (including blind testing) for transformers and PT/CTs. Powered by a high-capacity lithium battery and equipped with a 7-inch industrial-grade display, it provides professional transformer diagnostics.
Features:
1. Single connection completes DC resistance and turns ratio testing;
2. DC Resistance Function: Automatic three-phase testing of Yn, Y, Δ windings with unbalance calculation; 20A output for extremely low resistance testing;
3. Turns ratio function: Supports three-phase, single-phase, and Z-type transformers; PT/CT turns ratio and polarity testing; blind testing capability;
4. Multiple wired and wireless communication interfaces for expandable functionality;
5. Embedded Linux operating system for enhanced security and smooth performance;
6. A7+M4 dual-core architecture ensures real-time measurement and smooth operation;
7. Industrial-grade 7-inch large screen with a widescreen design provides a comfortable interactive experience;
8. High-capacity lithium battery with built-in charger for convenient field use.
Parameter:
Direct resistance test
Output current: 20A, 10A, 5A, 1A, 0.1A, ≤ 10mA
Measurement range:
20A gear 0.5m Ω~100m Ω;
10A gear 1.0m Ω~300m Ω;
5A gear: 10 m Ω~1.0 Ω;
1A gear: 200m Ω~6.0 Ω;
0.1A gear: 2.0 Ω~60 Ω;
≤ 10mA range: 30 Ω～ 50 k Ω
Accuracy: ± (reading x 0.2%+2 words)
Variable ratio test
Measurement range: 0.9 to 10000
Accuracy:
± (reading x 0.1%+2 words) (less than or equal to 500)
± (reading x 0.2%+2 words) (greater than 500 but less than or equal to 3000)
± (reading x 0.3%+2 words) (greater than 3000)
resolving power:
0.9～9.9999(0.0001)
10～99.999(0.001)
100～999.99(0.01)
10000 and above (1)
Usage conditions and appearance
Working power supply: built-in lithium battery, capacity 7.8AH
Charging voltage: AC220V
Operating temperature: -10 ℃ to 50 ℃
Relative temperature: ≤ 90%, no condensation
Weight/Size: 6.5kg/318 × 280 × 204mm
