Our company has developed a portable and practical device for on-site testing of current transformers at the right time-current transformer field calibrator; this instrument is a transformer tester developed on the basis of detailed analysis of the mathematical model of the transformer , When performing transformer verification, there is no need for voltage regulators, large current boosters, standard transformers and load boxes. Just bring this instrument to measure the ratio and angle differences of current transformers according to national standards. It can measure the ratio difference and angle difference of any percentage between 1% and 120% of the current; it can directly measure the transformation ratio of current transformer and voltage transformer; it can qualitatively measure the ratio difference and angle difference of voltage transformer; it can measure current on site It is especially convenient to verify the actual secondary load of the voltage transformer. The instrument uses high-precision, automatic linear adjustment of DC and AC power; high-speed, high-reliability digital processing module; high measurement accuracy, high stability of the pre-measurement circuit to ensure the accuracy and high stability of the instrument measurement. In addition, the instrument also has a user-friendly man-machine interface, prompts wiring and operation, and has the functions of saving any measurement parameters and printing measurement results.
Features
1. The current transformer field calibrator also has the functions of recursive method to measure current transformer error and potential difference method to measure voltage transformer error, which is convenient for on-site verification of metering devices.
2. On-site verification of current transformers does not require standard current transformers, current transformers, load boxes, voltage regulating control boxes and large current wires. Very simple test wiring and operation are used to achieve current transformer verification, which greatly reduces the work. Strength and improve work efficiency, it is convenient to carry out on-site transformer field verification work.
3. The current transformer field calibrator has a standard voltage transformer equivalent to the same transformation ratio of the measured current transformer, and its accuracy can reach level 0.05, which can accurately measure the transformation ratio and no-load of the measured current transformer error. Then combine the test results of impedance and admittance to calculate the error of the transformer.
4. Adopt the different frequency power supply test close to the power frequency to prevent on-site power frequency electromagnetic radiation and series interference.
5. The measurement range is wide, ranging from 5A/5A~25000A/5A or 5A/1A~6300A/1A.
6. With current transformer ratio, secondary winding direct resistance test function.
7. Using 800×480 high-resolution large-screen color LCD display, with humanized interface and operation design, making the operation more convenient and faster.
8. Using precise software algorithms, the accuracy of measurement data is further improved.
9. It can intelligently judge the status of external wiring, prompting wiring error, transformation ratio, polarity error, etc.
10. Automatically round up the test data and judge whether it is out of tolerance. The out-of-tolerance data is displayed in bright colors, and the out-of-tolerance is displayed in the lower right corner of the window. The data characteristics of the transformer are intuitive and clear.
11. Directly issue on-site verification conclusions, qualified or out of tolerance.
12. The large-scale memory can store up to 2000 pieces of field test data.
13. Equipped with a micro printer, the test data can be printed out on site; you can also use RS232 or USB interface to connect to the computer to upload the data and print the data certificate through the management software.
14. The use of engineering plastic mold chassis is shock-proof and pressure-proof to ensure the safety of on-site operators and equipment.
Features
1. The current transformer field calibrator also has the functions of recursive method to measure current transformer error and potential difference method to measure voltage transformer error, which is convenient for on-site verification of metering devices.
2. On-site verification of current transformers does not require standard current transformers, current transformers, load boxes, voltage regulating control boxes and large current wires. Very simple test wiring and operation are used to achieve current transformer verification, which greatly reduces the work. Strength and improve work efficiency, it is convenient to carry out on-site transformer field verification work.
3. The current transformer field calibrator has a standard voltage transformer equivalent to the same transformation ratio of the measured current transformer, and its accuracy can reach level 0.05, which can accurately measure the transformation ratio and no-load of the measured current transformer error. Then combine the test results of impedance and admittance to calculate the error of the transformer.
4. Adopt the different frequency power supply test close to the power frequency to prevent on-site power frequency electromagnetic radiation and series interference.
5. The measurement range is wide, ranging from 5A/5A~25000A/5A or 5A/1A~6300A/1A.
6. With current transformer ratio, secondary winding direct resistance test function.
7. Using 800×480 high-resolution large-screen color LCD display, with humanized interface and operation design, making the operation more convenient and faster.
8. Using precise software algorithms, the accuracy of measurement data is further improved.
9. It can intelligently judge the status of external wiring, prompting wiring error, transformation ratio, polarity error, etc.
10. Automatically round up the test data and judge whether it is out of tolerance. The out-of-tolerance data is displayed in bright colors, and the out-of-tolerance is displayed in the lower right corner of the window. The data characteristics of the transformer are intuitive and clear.
11. Directly issue on-site verification conclusions, qualified or out of tolerance.
12. The large-scale memory can store up to 2000 pieces of field test data.
13. Equipped with a micro printer, the test data can be printed out on site; you can also use RS232 or USB interface to connect to the computer to upload the data and print the data certificate through the management software.
14. The use of engineering plastic mold chassis is shock-proof and pressure-proof to ensure the safety of on-site operators and equipment.
Mobile version
15388193573
