Product Introduction
DC resistance measurement is an indispensable test item for transformers after delivery, overhaul, and tap changer replacement. In general, using traditional methods to measure the DC resistance of transformer windings and large power inductive equipment is a time-consuming and labor-intensive task. To address this situation, shorten measurement time, and reduce the workload of test personnel, Wuhan UHV has developed the DC Resistance Tester.
The DC Resistance Tester adopts advanced power supply technology and features stable performance, rapid measurement, compact size, ease of use, high measurement accuracy, and good data repeatability. It is an ideal device for measuring the DC resistance of transformer windings and large power inductors.
The DC Resistance Tester complies with the requirements of DL/T 845.3-2004, as well as national standards GB/T 6587-86 General Outline of Environmental Tests for Electronic Measuring Instruments and GB/T 6593-86 Test Rules for the Quality of Electronic Instruments.
Product Characteristics
1. Advanced Power Supply Technology: Utilizes novel power supply technology for DC resistance testing, ensuring stable performance.
2. Rapid Measurement: Enables fast testing to improve work efficiency.
3. Compact and User-Friendly: Small volume and easy to operate.
4. High Precision and Repeatability: Offers high measurement accuracy and excellent data repeatability.
Parâmetros técnicos
| project | Technical indicators and parameters | note |
| Corrente de teste | 2.5A，5A，10A，20A，50A | / |
| Faixa de medição | 2.5A：10mΩ～8Ω | / |
| 5A： 1mΩ～4Ω | / | |
| 10A：1mΩ～2Ω | / | |
| 20A：1mΩ～1Ω | / | |
| 50A：1mΩ～500mΩ | / | |
| precisão de medição | ±0.2%(full range) | / |
| data storage | 255 | / |
| Mostrar | LCD | Resistance is 4 1/2 bits |
| Maximum resolution | 0,1mΩ | / |
| fonte de energia | AC 220V±22V，50Hz±2Hz | insurance tube5A |
| Maximum power | 1500W | Testcurrent for 10A |
| work environment | environment temperature：0℃～40℃；Relative humidity ：≤80% | / |
| Volume | 440x230x490mm3 | / |
| Peso | 16kg | with accessories |
Transport、Reservation
If the equipments need to be transported, it is suggested to use the apparatus packing cases of this company and some damping goods, in order not to bring some unwanted damage which may cause you much loss.
Do not stack or pile the equipments if wood cases are not used in the transportation. The utmost stacking layer is two when using the apparatus packing cases of this company. The faceplate of the apparatus should be upward during transportation.
Reservation
The equipment should be laid indoors in a room which is dry, dustless, ventilating and with no corrosive gas. Do not stack or pile the equipment if wood cases are not used in the transportation.
The faceplate of the equipment should be upward when reserving. Put some moisture proof goods under the equipment to prevent the equipment from wetting.
Unpacking and Checking
Make sure the arrow sign of the outer pack is upwards before unpacking. Do not beat forcibly when unpacking in order not to damage the equipment. Unpack the case and take out the equipment, keeping the outer pack and the damping goods, which is not only convenient for your future transportation and reservation but also can protect the environment.
The content of checking
Take out the equipment after unpacking, check and count the equipments and sittings according to the packing list. Please contact with our company if the number is not correct, and we will reply to you as soon as possible.
After-sales service
This product has an overall warranty of one year with three guarantees and a lifelong maintenance, if there is any quality problem of the equipment under warranty, our company will provide free maintenance. If the damage is caused by the improper manipulation or carelessness of the user, we provide preferential services.
We expect that you can give us some valuable advice for our products, so please fill out the “User feedback card” carefully after receiving the equipment and send it to our company in time. We will set up the user record for the equipment you have purchased so as to offer you quicker and better service.
