ZWDR3220 Three Phase 20A Transformer Winding DC Resistance Tester With Degaussing Function
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- Supplier: Baoding Zhiwei Electric Power Technology Co. Limited
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Product Overview
Description
ZWDR3220 3 Phase Dc Resistance Tester
Model Number | ZWDR3220 |
Product name | DC Winding Resistance Tester |
Output current | Three-phase test: 10A+10A; 5A+5A; 1A+1A;200mA+200mA;20mA+20mA |
Single-phase test: 20A; 10A; 5A; 1A; 200mA;20mA; | |
Measurement range | Three-phase test: 10A+10A: 1mΩ～0.6Ω; 5A+5A: 2mΩ～1.2Ω; 1A+1A: 10mΩ～6Ω; 200mA+200mA: 100mΩ～30Ω； 20mA+20mA: 10Ω～200Ω； |
Single-phase test: 20A: 0.5mΩ～1Ω; 10A: 1mΩ～2Ω; 5A: 2mΩ～4Ω; 1A: 10mΩ～20Ω; 200mA: 100mΩ～100Ω; 20mA: 10Ω～20KΩ; | |
Accuracy | ±(0.2%+2 digits) |
Minimum resolution | 0.1 μΩ |
Working temperature | -10～40℃ |
Ambient humidity | ≤ 80% RH, no condensation |
Working power supply | AC220V±10%，50HZ±1HZ |
Volume | 428mm* 350mm* 230mm |
Net weight | 11.2kg. |
Functional Characteristics
1.The tester can select corresponding output current value accordingto test products, and is mainly suitable for measuring the inductive DC resistance on transformers;
2.On large transformers with a five-leg core and low-voltage windings connected in delta, the tester can be used for the test in HV & LV series excitation mode. The magnetic augment circuit of the windings can be automatically connected in the tester, to quickly and accurately test the DC resistance of the low-voltage windings;
3.The tester has a Three Phases Test function to measure the three-phase DC resistance of the star-connected windings
synchronously and calculate the three-phase unbalance rate automatically, so as to greatly reduce the measurement period and improve the test efficiency. Its phase by phase test function can also be used for phase by phase test on transformers with YN and D (Y) connections;
4.The winding material can be set according to the winding material of the transformer, such as copper or aluminum, to
distinguish the conversion temperature coefficient of different materials.
5.The tester is equipped with transformer YN winding neutral point lead line resistance detection function, can make three-phase test data closer to the single-phase test value.
6.The tester has a complete protection circuit and sound discharge alarm, to inform the clear discharge indication and reduce the misoperation;
7.The tester is equipped with a 7-inch color touch screen. to display the test data clearly in real-time;
8.The tester has Chinese and English operation interfaces, which can be configured according to the user requirements;
9. The tester is equipped with a RS232 communication port, to transmit the test data to the background, with the control software in the host computer;
10.The tester is equipped with a USB port, to transfer test data into a U disk;
11.The tester has a built-in calendar and clock, as well as saving(save 100 groups of data), review, and printing functions of test data;
12.The tester has more complete parameter settings, including test windings, Tapping Positions, test phases, Tested Sample Temperature, Conversion Temperature and others of the transformers;
13.The tester is equipped with an industrial plastic case which ensures its good portability and improvesits service life.
2.On large transformers with a five-leg core and low-voltage windings connected in delta, the tester can be used for the test in HV & LV series excitation mode. The magnetic augment circuit of the windings can be automatically connected in the tester, to quickly and accurately test the DC resistance of the low-voltage windings;
3.The tester has a Three Phases Test function to measure the three-phase DC resistance of the star-connected windings
synchronously and calculate the three-phase unbalance rate automatically, so as to greatly reduce the measurement period and improve the test efficiency. Its phase by phase test function can also be used for phase by phase test on transformers with YN and D (Y) connections;
4.The winding material can be set according to the winding material of the transformer, such as copper or aluminum, to
distinguish the conversion temperature coefficient of different materials.
5.The tester is equipped with transformer YN winding neutral point lead line resistance detection function, can make three-phase test data closer to the single-phase test value.
6.The tester has a complete protection circuit and sound discharge alarm, to inform the clear discharge indication and reduce the misoperation;
7.The tester is equipped with a 7-inch color touch screen. to display the test data clearly in real-time;
8.The tester has Chinese and English operation interfaces, which can be configured according to the user requirements;
9. The tester is equipped with a RS232 communication port, to transmit the test data to the background, with the control software in the host computer;
10.The tester is equipped with a USB port, to transfer test data into a U disk;
11.The tester has a built-in calendar and clock, as well as saving(save 100 groups of data), review, and printing functions of test data;
12.The tester has more complete parameter settings, including test windings, Tapping Positions, test phases, Tested Sample Temperature, Conversion Temperature and others of the transformers;
13.The tester is equipped with an industrial plastic case which ensures its good portability and improvesits service life.
Baoding Zhiwei Electric Power Technology Co., Ltd. is a high-tech enterprise located in the National High-tech Industrial
Development Zone of Baoding, China. The company specializes in the research and development, production, sales, and service of electric power system automation testing equipment, providing customers with one-stop services.
The company mainly produces and sells various types of testing equipment and instruments, such as oil-immersed, high-voltage, SF6 gas, and cable testing equipment, and has been deeply involved in the power industry for more than 20 years.
Development Zone of Baoding, China. The company specializes in the research and development, production, sales, and service of electric power system automation testing equipment, providing customers with one-stop services.
The company mainly produces and sells various types of testing equipment and instruments, such as oil-immersed, high-voltage, SF6 gas, and cable testing equipment, and has been deeply involved in the power industry for more than 20 years.
The company's main customer base includes national power grids, railways, power research institutes, water conservancy, chemical industry, power plants, power installation companies, transformer factories, electrical companies, training schools, and others worldwide.
The company adheres to the principle of "Wisdom Wins Innovation, Micro-Improvements See Quality," and strives to achieve the ultimate customer satisfaction.
The company adheres to the principle of "Wisdom Wins Innovation, Micro-Improvements See Quality," and strives to achieve the ultimate customer satisfaction.
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