| Prod Model: |
GDB-III |
| Power Input: |
AC220V±10%, 50Hz±1Hz |
| Turns Ratio Range: |
1~10000 |
| Group Difference Range: |
1~12 |
| Turns Ratio Accuracy: |
0.2%, 0.5%, 1% |
| Turns Ratio Resolution: |
0.0001 |
| Angle Resolution: |
0.01° |
Product Description
General Information
GDB-III Transformer Turns Ratio Tester is designed for three phase transformer of power system, especially for Z type winding transformer, rectifier transformer, Scott,inverse Scott and balance transformers in railway electrical system.
GDB-III input single phase power supply, and produce three phases or two phases power supply by inner power modules, output to the high voltage site of the transformer. High and low voltage are sampling at the same time, then the transformer connection groups, turn ratio, deviation, phase difference can be calculated.
Easy to use, GDB-III is the ideal transformer turn ratio tester for electrical power system ,transformer manufactures and railway electric system.
Features
- Large LCD screen, full English menu and English printing out.
- Especially suit to test the turn ratio and phase difference of the special type transformer.
- Especially suit test the rectifier transformer which with phase shift ,and intuitively display the angle of the phase shift.
- Automatically produce amplitude stability ,phase constant,three phases(120°) or two phases power supply .
- Directly measure the voltage ratio and the phase difference of high and voltage site .
- Test three phases at the same time in the true sense.
- The testing parameter can be setted in one time, after convert the tapping switch, then to test directly. Automatically judge the tapped position and the standard turn ratio after converting.
- Fast speed testing, only 8 seconds to test one group of data.
- The testing result is not affected by the power supply frequency and amplitude fluctuations.
- Protection function of over-current and high-low voltage reverse connecting.
- The whole process can be completely controlled by the PC, save data ,print the testing report .
- Testing result can be automatically saved, up to 99 data can be stored.
- Built-in user's manual, easy to read at any time .
Specifications
Turns Ratio Range 1~10000
Group Difference Range : 1~12
Turns Ratio Range Accuracy: Turns Ratio Range 1~1000:0.2degree
Turns Ratio Range: 1000~2000:0.5degree
Turns Ratio Range: 2000~5000:1degree
Turns Ratio Resolution: 0.0001
Angle Resolution : 0.01°
Power Supply: 220V±10% ,50Hz±1Hz
Working Temperature : -20~40 degree
Relative Humidity : ≤85%,no condensation
Overall: 320mm×400mm×170mm
Instrument Weight: 7kg
| Power Supply | AC220V± 10%, 50Hz± 1 |
| Turns Ratio Range | 1: 1000 |
| Display | LargeLCDscreen |
| Accuracy | 0.2% |
| Test Voltage | HV: AC190V |
| LV: AC0.19V~190V(varywithratio) |
Working Condition | Ambienttemperature0~40º C |
| Ambienthumidity< 85%RH |
| Dimension | Main unit: 42*34*19cm |
| Accessorybag: 31*23*9cm |
| Weight | Main unit: 9.5kg |
| Accessorybag: 2kg |
HV Hipot Co. Is a high-tech enterprise professionally engaged in R & D, manufacture, and marketing of power testing products, instrumentations, power industry automation systems, which are supplied for national power companies, metallurgy petrochemical corpations, factories and public institution.
Established in 1997, we have developed Resonance hipot tester, Partial-discharge tester, Power-frequency AC/DC hipot tester, Intelligent control systems, HV circuit breaker tester, Relay protection tester successively, which achieved qualifications and honors of "High-tech enterprise certification", "ISO9001 quality management system certification", "Electrical Measuring&Testing Association of Hubei Province".
In the last years, the company have participated actively in project R&D of High voltage test and Energy saving&environmental protection with State grid corporation, HV research institution and Wuhan University.
We own 18 technicians, who form a strong R & D team and high-quality sales team. Years of experience and strong R&D support made us become a leader in the field of power on-line testing. The domestic market have been expanded to many provinces and cities nationwide, and our products have been recognized by diverse range of industrial sectors. The business is increasing every year.
Meanwhile, we have also been actively marketing in international market. Until now, our products have been exported to Australia, Russia, India, Pakistan, Vietnam, Middle East. The reliable performance and competitive price of our products have obtained us high praise from our overseas customers.
With the spirit of "professionalism, integrity, responsibility, innovation", we will always develop better products and provide our customers with high quality products and satisfactory services.
