KDZRS-40A Three-Phase DC Resistance Tester (With Demagnetization Function)

KDZRS-40A Three-Phase DC Resistance Tester (With Demagnetization Function)

Applications:

Designed specifically for DC resistance measurement of windings in large power transformers, instrument transformers, generators, and motors, this instrument is suitable for manufacturing, installation, commissioning, and preventative maintenance. It is particularly suitable for star-connected transformers requiring simultaneous three-phase testing, significantly reducing measurement time. This equipment helps technicians detect winding defects such as poor welding, loose connections, missing strands, and broken wires, ensuring operational reliability and improving maintenance efficiency.

Response within
24 hours
Free warranty
12 month
On-line training
Support

Profile
Features
Parameter

Profile:

KDZRS-40A is a high-current three-phase DC resistance tester capable of simultaneously testing transformers with a neutral point. It offers an output current of up to 40A, a resolution of 0.0001μΩ, and covers a resistance range of 200μΩ to 200Ω in both three-phase and single-phase modes. The device features a one-time demagnetization function to eliminate residual magnetism and is equipped with comprehensive back EMF protection and a 5.0-inch touchscreen. Built-in memory can store 500 test records and supports USB export and thermal printing.

Features:

1. Simultaneously measures the three-phase resistance of a transformer with a neutral point, significantly reducing test time;
2. Features a one-time demagnetization function to eliminate residual magnetism in the transformer core;
3. Wide resistance measurement range with a resolution up to 0.0001μΩ and multiple current ranges;
4. Comprehensive back EMF protection enhances equipment safety;
5. Can perform longitudinal testing of DC resistance of on-load tap changers in a single operation;
6. High measurement accuracy, interference and shock resistant, and portable;
7. Equipped with a 5.0-inch 65K color touchscreen for intuitive and easy operation;
8. Built-in large-capacity non-volatile memory, capable of storing up to 500 sets of data;
9. Built-in high-speed miniature thermal printer for on-site printing of test results;
10. Built-in high-precision real-time clock to display the current time;
11. Supports USB storage for convenient data export.

Parameter:

Three-phase test:
40A (2*20) Test range: 500μΩ ~ 200mΩ Accuracy: ± (0.2% reading +1.0μΩ)
20A (2*10) Test range: 1mΩ ~ 500mΩ Accuracy: ± (0.2% reading +0.001mΩ)
10A (2*5) Test range: 10mΩ ~ 1.0Ω Accuracy: ± (0.2% reading +0.01mΩ)
2A (2*1) Test range: 100mΩ ~ 5.0Ω Accuracy: ± (0.2% reading +0.1mΩ)
0.2A (2*0.1) Test range: 1Ω ~ 50Ω Accuracy: ± (0.2% reading +0.001Ω)

Single-phase test:
40A test range: 200μΩ ~ 500mΩ Accuracy: ± (0.2% reading +0.5μΩ)
20A Test range: 500μΩ ~ 0.8Ω Accuracy: ± (0.2% reading +1μΩ)
10A test range: 1mΩ ~ 2.0Ω Accuracy: ± (0.2% reading +0.001mΩ)
5A Test range: 10mΩ ~ 4.0Ω Accuracy: ± (0.2% reading +0.01mΩ)
1A Test range: 100mΩ ~ 20Ω Accuracy: ± (0.2% reading +0.1mΩ)
0.1A Test range: 1Ω ~ 200Ω Accuracy: ± (0.2% reading +0.001Ω)

Resolution: 0.0001μΩ, 5 significant digits
Host size: 420mm×250mm×340mm
Weight: 15kg

Conditions of use
Ambient temperature: -10℃ ~ 50℃
Ambient humidity: ≤85℅RH
Power supply: AC220V ±20% mains (50Hz)

Kaidi Zhengda Electric

Products

KDZRS-40A Three-Phase DC Resistance Tester (With Demagnetization Function)

Profile:

Features:

Parameter:

Contact Us

Kaidi Zhengda

Contact Us

About Us

Compnay Info

Quick Contact

+86-027-83551828

Kaidi Zhengda Electric

Products

KDZRS-40A Three-Phase DC Resistance Tester (With Demagnetization Function)

Profile:

Features:

Parameter:

Contact Us

Kaidi Zhengda

Related Products

KD305Y Insulation Resistance Tester

KD2682 Insulation Resistance Tester

KD2671C Insulation Resistance Tester

KD2671B Insulation Resistance Tester

Contact Us

About Us

Compnay Info

Quick Contact

+86-027-83551828