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On site calibration device for current transformers
On site calibration device for current transformers
Product details
Main features
Portable, integrated, on-site verification of current levels 1 to 0.2S with ratios of 5-25000A/5A, 5-5000A/1A, only compensated for turns or fractional turns. This on-site current transformer can directly test and display the error of the verified current at 1% or 5% -120% rated current, rated load, and lower limit load. It is mainly suitable for the verification of on-site current transformers. The transformer has the functions of polarity and ratio error judgment, instrument fault self checking and alarm, overvoltage and overcurrent protection, reverse polarity display and sound alarm.
Main indicators
In-phase component (%): 0.0001~± 20.00 resolution 0.0001
Orthogonal component (min): 0.001~± 500 Resolution 0.001
Impedance (Ω): 0.0001~10.00 Resolution 0.0001
Admittance (ms): 0.0001~12.00 Resolution 0.0001
Workload: Current: T0Voltage less than 0.1 Ω (cos Φ=1) between Tx: less than 0.1VA (100V) between a and x
Orthogonal component (min): 0.001~± 500 Resolution 0.001
Impedance (Ω): 0.0001~10.00 Resolution 0.0001
Admittance (ms): 0.0001~12.00 Resolution 0.0001
Workload: Current: T0Voltage less than 0.1 Ω (cos Φ=1) between Tx: less than 0.1VA (100V) between a and x
Accuracy
0.05 level/0.02 level
Main functions
1. Adopting a 320 × 240 dot matrix touchscreen color LCD display screen, with full Chinese status display and operation interface; The wiring diagram is convenient and intuitive to display directly, and the measurement results (parameters such as ratio and angle difference) are displayed on the same screen;
2. Measurable current transformer (CT), impedance (Z), admittance (Y);
3. Automatic range switching during the measurement process;
4. It has the function of judging the polarity and transformation ratio errors of transformers;
During the measurement process, the range automatically switches and the wiring diagram is directly displayed, making it easy and intuitive to use;
6. Full point measurement can be carried out according to different accuracy requirements based on the measurement points required by the regulations;
7. Can store 1000 sets of measurement data, real-time query and browse data, and data can also be saved to a USB flash drive;
8. The instrument has fault self checking and alarm functions, as well as overvoltage and overcurrent protection functions;
9. The resolution level can be automatically switched according to the size of the measurement data, or the measurement range can be manually selected as needed.
10. When the polarity is reversed, it will display the reversed polarity and have an audible alarm function；
11. The error data can be automatically adjusted according to the latest regulations based on the accuracy of the tested transformer；
12. Equipped with a USB interface, the calibration data can be transmitted to the computer energy metering management system through a USB flash drive for data storage management and printing；
13. The instrument is small in size, light in weight, integrated, intelligent, automated, easy to operate, and portable, making it very suitable for on-site calibration.
2. Measurable current transformer (CT), impedance (Z), admittance (Y);
3. Automatic range switching during the measurement process;
4. It has the function of judging the polarity and transformation ratio errors of transformers;
During the measurement process, the range automatically switches and the wiring diagram is directly displayed, making it easy and intuitive to use;
6. Full point measurement can be carried out according to different accuracy requirements based on the measurement points required by the regulations;
7. Can store 1000 sets of measurement data, real-time query and browse data, and data can also be saved to a USB flash drive;
8. The instrument has fault self checking and alarm functions, as well as overvoltage and overcurrent protection functions;
9. The resolution level can be automatically switched according to the size of the measurement data, or the measurement range can be manually selected as needed.
10. When the polarity is reversed, it will display the reversed polarity and have an audible alarm function；
11. The error data can be automatically adjusted according to the latest regulations based on the accuracy of the tested transformer；
12. Equipped with a USB interface, the calibration data can be transmitted to the computer energy metering management system through a USB flash drive for data storage management and printing；
13. The instrument is small in size, light in weight, integrated, intelligent, automated, easy to operate, and portable, making it very suitable for on-site calibration.
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