Transformer Low Voltage Short Circuit Impedance Tester for Winding Deformation Diagnostic Analysis|XHZK1620

Short-circuit impedance is a fundamental parameter for assessing transformer winding integrity. The short-circuit impedance method is the traditional and most reliable approach for detecting winding deformation, and per GB1094.5-2003 and IEC60076-5:2000 standards, the variation of short-circuit reactance is the sole criterion for determining whether transformer windings have sustained mechanical deformation. The XHZK1620 Low Voltage Short Circuit Impedance Tester implements this critical diagnostic method with automated precision, eliminating the need for complex external equipment.

Powered entirely from a single-phase 220V AC source (or a small 500VA online UPS when mains power is unavailable), the XHZK1620 completes three-phase measurement in a single automated sequence—connect once, start once, and the instrument automatically measures and displays short-circuit impedance, short-circuit reactance, and three-phase impedance voltage for all phases. With 0.2-grade voltage/current accuracy, automatic frequency correction, and 1000+ result non-volatile storage, it is the definitive portable solution for transformer winding condition assessment in manufacturing, commissioning, and preventive maintenance applications.

• Single-Phase 220V Operation: Complete three-phase measurement using only standard mains power—no external voltage regulators or auxiliary equipment required. Compatible with small 500VA online UPS for field sites without grid access
• One-Click Automated Measurement: Single wiring connection, single start command—the instrument automatically sequences through all three phases and displays results without operator intervention
• Dual Power Mode: Internal power mode uses instrument's built-in supply; external power mode accepts voltage regulator input for specialized test requirements
• Comprehensive Parameter Display: Simultaneously measures and displays voltage, current, power, and frequency for each test phase alongside impedance and reactance values
• Automatic Frequency Correction: Real-time compensation for mains frequency fluctuations eliminates measurement errors caused by unstable grid conditions
• 0.2-Grade Precision: High-accuracy voltage and current measurement (0.2 grade) with 0.5-grade impedance and power analysis for reliable winding deformation assessment
• 1000+ Result Storage: Built-in non-volatile memory with perpetual calendar and clock—measurement data preserved indefinitely without power
• Large LCD Display: High-contrast screen with Chinese/English menu navigation and intuitive operation prompts for international deployment
• Built-in Thermal Printer: Immediate on-site printing of test results for documentation and reporting
• Portable & Lightweight: Compact 8kg design (350x270x170mm) with rugged construction for reliable field and laboratory use