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VIND-ZH-4IN1 All-in-One Distribution Transformer Analyzer (4-in-1)
VIND-ZH-4IN1 All-in-One Distribution Transformer Analyzer (4-in-1)
The VIND-ZH-4IN1 is an intelligent 4-in-1 tester integrating DC resistance, turns ratio, insulation resistance, and energy efficiency testing. Featuring a 11AH battery and one-wire connection, it enables fully automatic field diagnostics for distribution transformers, eliminating the need for multiple instruments and rewiring.
PARAMETER
Product Overview
The VIND-ZH-4IN1 All-in-One Distribution Transformer Analyzer is a revolutionary solution designed to streamline traditional transformer maintenance. By integrating four core functions—DC Resistance, Turns Ratio, Insulation Resistance, and Energy Efficiency—into a single rugged unit, it eliminates the hassle of carrying multiple devices and the time-consuming process of rewiring. Powered by a 11AH lithium battery, this system allows technicians to perform fully automatic, one-wire-connection testing in the field, significantly boosting operational efficiency for modern power grid operations.
The VIND-ZH-4IN1 All-in-One Distribution Transformer Analyzer is a revolutionary solution designed to streamline traditional transformer maintenance. By integrating four core functions—DC Resistance, Turns Ratio, Insulation Resistance, and Energy Efficiency—into a single rugged unit, it eliminates the hassle of carrying multiple devices and the time-consuming process of rewiring. Powered by a 11AH lithium battery, this system allows technicians to perform fully automatic, one-wire-connection testing in the field, significantly boosting operational efficiency for modern power grid operations.
Technical Specifications
| Parameter | Specification |
|---|---|
| DC Resistance | Output: 20A Max; Range: 0.5mΩ ~ 50kΩ; Accuracy: ±0.2%+2d |
| Turns Ratio | Range: 0.9 ~ 10000; Accuracy: ±0.1%+2d (≤500) |
| Capacity & Loss | Voltage: 50-850V; Capacity Range: 30kVA-65000kVA; Accuracy: ±10% |
| Insulation Resistance | Voltage: 500V/1kV/2.5kV/5kV; Short-Circuit Current: 1-5mA |
| Power & Display | Battery: 11AH Li-ion; Screen: 7-inch Industrial Touchscreen |
| Physical | Dimensions: 438×318×190mm; Weight: 12kg |
Key Functional Features
- All-in-One Integration: Combines the four essential transformer testing functions (DC Resistance, Turns Ratio, Insulation, and Efficiency) into a single compact unit. This design allows for seamless switching between tests without the need to change wiring, drastically reducing setup time and the physical burden on field crews.
- Intelligent DC Resistance Testing: Supports automatic 3-phase testing for Yn, Y, and Δ windings. It features a maximum output of 20A, specifically designed to accurately measure the extremely low resistance values of distribution transformer low-voltage coils, and automatically calculates the 3-phase unbalance rate.
- Comprehensive Ratio & Polarity Analysis: Offers a wide measurement range (0.9-10000) suitable for 3-phase, single-phase, and Z-type transformers. It includes built-in PT/CT ratio and polarity testing, along with a “Blind Test” mode for unknown transformer configurations.
- Energy Efficiency Grading: Strictly adheres to the GB20052-2020 standard, the system can evaluate the energy efficiency grade of distribution transformers. It integrates capacity, load, no-load, and zero-sequence impedance testing to provide an authoritative assessment of the transformer’s performance level.
- Deep Insulation Diagnostics: Equipped with a high-power output of up to 5mA short-circuit current and selectable test voltages (500V-5000V), it supports comprehensive insulation diagnostics including IR (Insulation Resistance), DAR (Dielectric Absorption Ratio), and PI (Polarization Index).
- Rugged & Mobile Design: Powered by an embedded Linux system with a dual-core A7+M4 architecture, it ensures real-time data processing stability. The 7-inch industrial touchscreen with a “One-Knob” operation interface remains clear even under strong outdoor sunlight, making it ideal for harsh field environments.
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