PS-ZD20T Three-Phase Winding Resistance Tester
DC resistance of transformers is tested for semi-finished and finished products, delivery, installation, handover, preventive tests, and is used to identify manufacturing defects such as improper material selection for transformer coils, welding issues, loose connections, strand or wire breakage, as well as hidden risks after operation. To support quick DC resistance measurements, we developed the PS-ZD20T three-phase winding resistance tester for YN-connected windings, enabling simultaneous ene
- Categories:Transformer Test
DC resistance of transformers is tested for semi-finished and finished products, delivery, installation, handover, preventive tests, and is used to identify manufacturing defects such as improper material selection for transformer coils, welding issues, loose connections, strand or wire breakage, as well as hidden risks after operation. To support quick DC resistance measurements, we developed the PS-ZD20T three-phase winding resistance tester for YN-connected windings, enabling simultaneous ene
- 1. Display: Colorful lattice LCD, showing menus, test data, and records.
2. Buttons: Used to operate the functions indicated on the LCD, or to return the entire unit to its initial energization state.
3. Measurement terminals: Under three-channel measurement mode, Ia, Ib, Ic, and Io are current output and input channels; Ua, Ub, UC, and Uo are voltage input channels. Under single-channel measurement mode, I+ and I- are current output and input channels; U+ and U- are voltage input channels.
4. Power switch and socket: Includes a power switch for the entire unit and a 220 V AC power plug (with a built-in 5 A protective fuse).
5. Earthing: Earthing rod for grounding the enclosure of the entire unit; assigned to the protective earth (PE) circuit.
6. USB interface: Connection between the instrument and a USB flash drive (U disk).
7. RS232 communication interface: Communication between the instrument and the host computer.
8. Printer: Prints information such as resistance value results and test current.
Output current | Automatically selected (maximum 20 A) |
Range | 0–100 Ω |
Accuracy | ±(0.2% + 2 digits) |
Minimum resolution | 0.1 μΩ |
Working temperature | −20 to 40 °C |
Ambient humidity | ≤80% RH, non-condensing |
Altitude | ≤1,000 m |
Working power supply | AC 220 V ±10%, 60 Hz ±1 Hz |
Dimensions | L 400 mm × W 340 mm × H 195 mm |
Net weight | 8 kg |
