Product Description
The DC resistance of transformers is a necessary test item for semi-finished and finished products in transformer manufacturing, including factory testing, installation, overhaul, change of tap changer, handover testing, and preventive testing by the power department. It can check the welding quality of the winding joints and whether there is any inter turn short circuit in the winding. It can also check whether the contact at various positions of the voltage tap changer is good, whether the actual position of the tap changer matches the indicated position, whether the outgoing wire is broken, and whether there are broken strands when multiple wires are wound together. In order to meet the needs of rapid measurement of transformer DC resistance, our company has developed the ZSR10A transformer DC resistance tester. This instrument adopts a new power supply technology, which has the characteristics of small size, light weight, high output current, good repeatability, strong anti-interference ability, and complete protection functions. The entire 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, simple operation, and can achieve rapid measurement of transformer direct resistance.
Features
1. The instrument can be fully controlled through dedicated software using a mobile phone, and the test data is stored in a fixed format on the phone, making it easy to query data at any time.
2. The maximum output voltage of the instrument is 24V, which facilitates the selection of a larger test current for high resistance values and improves the testing speed.
3. The instrument adopts a new power supply technology, with multiple current ranges and a wide measurement range. It can automatically select the current according to the load and is suitable for DC resistance measurement of small and medium-sized transformers and voltage transformers.
4. It has multiple protection functions such as back electromotive force impact, wire breakage and power outage during testing, power overheating, etc. It can reliably protect the impact of back electromotive force on the instrument and synchronously sound an alarm.
5. With any temperature conversion function made of copper and aluminum materials, touch to input any winding temperature and conversion temperature.
6. Intelligent power management technology ensures that the instrument operates at the minimum power state, effectively saving energy and reducing heat generation.
7. Seven inch high brightness touch color LCD, clear display under strong light, full touch screen operation, and free switching between Chinese and English.
8. The instrument comes with a perpetual calendar clock and power down storage, which can store 1000 sets of test data and can be viewed at any time.
9. The instrument has Bluetooth communication, RS232 communication, and USB interface for computer communication and USB data storage.
10. Equipped with a panel mounted micro printer, it can print measurement results in English.
Technical specification
| Item |
Technical indicators and parameters |
Remarks |
| Test current |
AUTO,<20mA,40mA,
200mA,1A,5A,10A |
|
Measuring range and accuracy |
0.5mΩ~0.8Ω (10A)
1mΩ-4Ω (5 A)
5mΩ-20Ω ( 1 A)
100mΩ-100Ω (200mA)
1Ω-500Ω (40mA)
±(0.2%+2 readings) |
|
100Ω-100KΩ (<20mA)
±(0.5%+2 readings) |
|
| Minimum resolution |
0.1μΩ |
|
| Display |
Seven-inch touch color LCD |
Resistance display effective digits are 4 digits |
| Data storage |
1000groups |
|
| Working environment |
Ambient temperature:0ºC~40ºC Relative humidity: <90%RH,No condensation |
|
| Power supply |
AC 220V±10V,50Hz±1 Hz |
Fuse 2A |
| Maximum power consumption |
200W |
|
| Dimensions |
360*290*170(mm) |
|
| Weight |
Host:6 KG Wire box:5 KG |
|
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Packaging: Wooden case filled with foam
Shipping: by Air, Sea, Express, etc.
Shipping time: 7-15 days if it's in stock.
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XZH TEST is a professional cable fault detection equipment manufacturer. We are a young team. Our development philosophy is humanized management, intelligent cloud-based products, and internationalized operations. Our development mission is to make electrical equipment free from undetectable failures.
Since its inception in 2013, our company has grown to become one of the largest manufacturer of underground cable fault detection equipment in China. An ISO 9001 and CE certified company, we produces a broad range of testing equipment.
What we can do
We have the ability to innovate new products and technologies.
We can provide complete system solutions for your project.
We provide online and offline practical and theoretical training.
We provide instrument repair and calibration.
FAQ:
1. Are you a trading company or a manufacturer?
We are a professional manufacturer with more than 10 years of experience. We can strictly control the quality of parts and finished products.
2. What is the delivery time and inventory?
If our best-selling products are in stock, it will be 5-8 working days for shipment. But for mass production and customized production, the time will take 2-4 weeks.
3. What are your payment terms?
Payment ≤ USD 2000, 100% T/T prepayment. Orders over USD 2000 can be negotiated.
4. How long is your product warranty?
We provide 1 year warranty for the equipment.
5. How do you ensure quality?
The product links include R&D, manufacturing, commissioning and technical support, following strict and scientific management principles. Therefore, we can support strong production and R&D capabilities, and can produce high-quality products at competitive prices to meet customers' high requirements.
6. What support can I get?
We will provide training support, marketing support, technical support and supply chain support. You can contact us for more information.
7. Where is your factory? Can I visit your factory?
We are located in Xi'an, Shaanxi, China. We are close to Xi'an Xianyang International Airport, which is about 2 and half hours by plane from Shanghai and Guangzhou. All customers from all over the world are welcome to visit us.
8. How to become your dealer?
Every company interested in power system instruments can contact us without hesitation, including website letters, emails, telephones, etc. We will contact you quickly according to your company information and cooperation intentions.
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