Detector 20A Automatic DC Winding Resistance Tester Meter Power Transformer Test Equipment

• After-sales Service: Warranty Certificate
• Warranty: 1 Year
• Display Type: LCD
• Model NO.: JH2820
• Certification: ISO9001
• Customized: Customized
• Resolution: 0.1 U Ohm
• Range: 1.0-20K Ohm
• Accuracy: 0.2%
• Working Temperature: 0-40c
• Working Humidity: Less Than 90% Rh
• Host Size: 330mm(L)*260mm(W)*170mm(H)
• Host Weight: 5.0kg
• Transport Package: Carton Box Wooden Case
• Specification: 380*250*85mm
• Trademark: JH
• Origin: Wuhan, China
• Production Capacity: 1000
• Package Size: 30.00cm * 25.00cm * 20.00cm
• Package Gross Weight: 10.000kg

Product Description

Product overview:

The DC resistance of transformers is a necessary measurement item for semi-finished and finished products in transformer manufacturing, factory testing, installation, major repairs, changes to tap changers, handover testing, and preventive testing by power departments. It is possible to check the welding quality of the winding joints and whether there is a turn to turn short circuit in the winding. It can also detect whether the various positions of the voltage tap changer are in good contact, whether the actual position of the tap changer matches the indicated position, whether the lead wire is broken, and whether there are broken wires when multiple wires are wound together. This instrument adopts a new power technology, which has the characteristics of small size, light weight, large output current, good repeatability, strong anti-interference ability, and complete protection function. The whole machine is controlled by a high-speed microcontroller, with a high degree of automation and automatic discharge and discharge alarm functions. The instrument has high testing accuracy, easy operation, and can achieve rapid measurement of transformer direct resistance.

Features:

1. This tester has 6 output currents (maximum 20A; minimum<10ma), suitable="" for="" measuring="" the="" dc="" resistance="" of="" various="" transformers.="">
2. The measuring range of this tester is 0.001 Ω to 20K Ω.
3. The whole machine adopts high-speed ARM control, with high degree of automation and easy operation.
4. The instrument adopts programmable switch power supply technology, with a wide measurement range.
5. The protection function is complete, which can reliably protect the impact of back electromotive force on the instrument, and the performance is more reliable.
6. Fast response speed, stable instrument measurement data, and automatic data refresh during the testing process.
7. Intelligent power management technology ensures that the instrument always operates at its minimum power state, effectively reducing internal heat generation and saving energy.
8. The instrument is equipped with an uninterruptible clock inside.
9. The instrument is equipped with an uninterruptible power storage device that can permanently store data.

Technical parameters:

 

Model	JH2820
Resolution	0.1 u ohm
Range	1.0-20K ohm
Accuracy	0.2%
Working temperature	0-40C
Working humidity	less than 90% RH
Host size	330mm(L)*260mm(W)*170mm(H)
Host weight	5.0Kg

Common problem

1. Is your company a sales company or a manufacturer?
Our company is an industrial and trade enterprise, with our own factory and lab, self-produced and self-sold. We were founded in 2013 and have 12 years of production experience, which has reliable production lines, test rooms and R&D centers.

2. Whether the goods are in stock, whether they can be customized, and how long the delivery time?
After the goods have been ordered, it takes about 7 working days for production if there are no accidents.

3. Is the quality guaranteed?
In order to ensure quality, we use imported components in large quantities. After three times of quality inspection, the goods can be sent out, and the export is in well package with fast shipping.

4. What are the after-sales terms?
We offer free consulting service, 1 year warranty, and adopt various methods such as email communication, video calls, technology door-to-door, aiming to solve any after-sales problems in a timely manner.

5. What are the cooperative countries or regions?
Products have been successfully exported to the United States, Brazil, Australia, Russia, the Netherlands, Indonesia, Bangladesh, Iran, India, Saudi Arabia, Mongolia, Japan and other countries and regions. In the United States, India, Vietnam and other regions have cooperative distributors, can provide thoughtful services.

6.Is customization supported?
We support customization in language use according to your requirement if the quantity ordered reaches.