XHZ 2-in-1 Distribution Transformer Test System for On-Site DC Resistance & Ratio Testing
Price:
Negotiable
MOQ:
1 Unit
Delivery Time:
5-8 work days
Brand:
XZH TEST
Product Description
The XHZ is a 2-in-1 distribution transformer test system that combines DC resistance and transformation ratio measurement in a single instrument with one wiring connection. Designed for power engineering, installation and maintenance teams, it completes distribution transformer handover tests, routine maintenance and on-site fault diagnosis quickly and accurately, reducing test time and improving commissioning efficiency.
Target Audience
Designed for field engineering, commissioning & maintenance teams:
Power engineering and installation companies performing transformer handover tests
Distribution network O&M teams conducting routine maintenance and fault diagnosis
On-site commissioning engineers testing Yn, Y and Δ winding transformers
Key Features
One wiring connection for both DC resistance and transformation ratio tests
Three-phase automatic DC resistance testing for Yn, Y and Δ type windings
Automatic unbalance rate calculation for fast on-site judgment
7-inch industrial touch screen with jog dial for convenient field operation
Built-in 7.8AH lithium battery and charger for all-day field work
Wired and wireless communication interfaces for future function expansion
Embedded Linux OS with A7+M4 dual-core architecture for smooth operation
Built-in printer and USB storage for instant on-site reporting
Applications
Distribution transformer handover and acceptance tests
Routine maintenance and on-site fault diagnosis
DC resistance and ratio tests of Yn, Y and Δ windings
PT/CT transformer ratio measurement
Technical Specifications
| Parameter | Specification |
|---|---|
| DC Resistance Output Current | 20A / 10A / 5A / 1A / 0.1A / ≤10mA |
| DC Resistance Range | 0.5mΩ~100mΩ (20A); 1.0mΩ~300mΩ (10A); 10mΩ~ (5A) |
| DC Resistance Accuracy | ±(reading ×0.2% + 2) |
| Ratio Measurement Range | 0.9 ~ 5000 |
| Ratio Accuracy | ±(reading ×0.1% + 2) (≤500); ±(reading ×0.2% + 2) (>500, ≤3000) |
| Ratio Resolution | 0.0001 ~ 0.01 (range dependent) |
| Power Supply | Built-in 7.8AH lithium battery, AC220V charging |
| Operating Temperature | -10°C ~ 50°C; humidity ≤90% (non-condensing) |
| Display | 7-inch capacitive touch screen, full touch + jog dial |
| Dimensions / Weight | 318×280×204mm; 6.5kg |
FAQ
Can the XHZ complete both DC resistance and ratio tests with one wiring?
Yes. The XHZ is a 2-in-1 system; DC resistance and transformation ratio tests share the same wiring connection, so you only connect the test wires once to complete both tests, saving significant on-site time.
What winding types can it test?
It supports Yn, Y and Δ type windings. The DC resistance test adopts three-phase automatic testing and automatically calculates the unbalance rate; the ratio test supports three-phase, single-phase and Z-type transformers.
How long can it run in the field on battery?
It is powered by a built-in 7.8AH large-capacity lithium battery with a built-in charger (AC220V), providing long-lasting power for a full day of on-site testing.
Is it portable for on-site commissioning?
Yes. The mainframe weighs 6.5kg with dimensions of 318×280×204mm, and features a 7-inch touch screen, making it easy to carry and operate in substations and field sites.
How do I generate on-site test reports?
Test results can be printed directly through the built-in printer or saved to USB storage. The Record Query function lets you retrieve stored data by test type and time for commissioning reports.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Xi'an Xu&Hui Electromechanical Technology Co., Ltd.
Location
Building B8-01, Phase I, Ronghao Industrial City, No. 2098, Weiyang 9th Road, Gaoling District, Xi'an, China
Contact Person
Serena