MS‑D110A Transformer DC Resistance Tester
MS‑D110A Transformer DC Resistance Tester
Product Description
MS‑D110A Transformer DC Resistance Tester for transformer winding resistance test. 10A output, 7‑inch touch screen, Bluetooth & USB data storage, auto‑discharge, for substation field maintenance.
Overview
The MS‑D110A Transformer DC Resistance Tester is professional test equipment for transformer factory acceptance, site installation, overhaul, tap‑changer inspection and preventive maintenance.
It detects winding joint welding quality, turn‑to‑turn short‑circuit, tap‑changer contact condition, broken leads and parallel‑conductor faults. Adopting advanced power supply technology, this unit delivers fast, repeatable and reliable resistance measurement for medium‑small transformers and voltage transformers. Built‑in auto‑discharge and multi‑level protection ensure high safety for field inductive‑load testing.
Key Features
- 7‑inch high‑brightness full‑touch color LCD, clear display under strong sunlight; support Chinese / English UI switch
- Multiple test current gears: AUTO, <20mA, 40mA, 200mA, 1A, 5A, 10A; max output voltage 24V
- Copper & aluminum winding temperature conversion function for resistance temperature correction
- Mobile APP control via Bluetooth; RS232, USB interfaces for data export; built‑in micro thermal printer
- Store up to 1000 groups test data with power‑off memory and perpetual calendar clock
- Multiple safety protections: back‑EMF impact, disconnection, power‑failure & overheat protection with alarm prompt
- Auto discharge function for inductive loads; supports magnetic‑assist test for Y(N)‑d‑11 transformer groups
- Compact portable design, suitable for substation on‑site testing
Technical Specifications
| Item | Parameter |
|---|---|
| Test Current | AUTO, <20mA, 40mA, 200mA, 1A, 5A, 10A |
| Measuring Range & Accuracy | 0.5mΩ‑0.8Ω (10A) ~ 1Ω‑500Ω (40mA): ±(0.2%+2words)100Ω‑100kΩ (<20mA): ±(0.5%+2words) |
| Minimum Resolution | 0.1μΩ |
| Display | 7‑inch touch color LCD, 4‑digit valid resistance readout |
| Data Storage | 1000 sets |
| Power Supply | AC 220V±10%, 50Hz±1Hz |
| Max Power Consumption | 200W |
| Working Environment | 0℃‑40℃, RH＜90%, non‑condensing |
| Dimension | Host: 360×290×170 mm; Cable case: 360×290×170 mm |
| Weight | Host: 6 KG; Cable case: 5 KG |
| Standard Test Cable | 10 m (customizable length available) |
Application
Transformer manufacturing factory test, hand‑over test, substation overhaul & preventive test, tap‑changer condition inspection for power utilities.
Warranty
1‑year free repair for quality defects; lifetime technical support and after‑sales service.
