Strong Anti-jamming Standard Calibration Instrument Calibration Device for Three-phase Turns Ratio Tester
Product Description
Strong Anti-jamming Standard Calibration Instrument Calibration Device for Three-phase Turns Ratio Tester
Product Introduction
This three-phase transformer ratio & group calibration device is a professional standard equipment in the power detection field, with 0.01 class accuracy, supporting 1.00000-10000 wide ratio range and seven connection groups, strong anti-interference and flexible dual-mode switching, providing reliable guarantee for equipment calibration.
Technical Specifications
1.General technical specifications for the entire machine
① Voltage ratio measurement accuracy class: 0.01 class
② Input voltage range: 0V to 240V
③ Output voltage ratio range: 1.00000～10000
④ Output group ratio range: 10,100,1000,
The output ratio for Y/Y and D/D modes is 10,100, and 1000 as specified above.
But if it's another connection method, it's related to √3.
In the Y/D connection, the original ratio is multiplied by √ 3, resulting in values of 17.732,173.2, and 1732.
In the D/Y connection method, the original ratio is reduced by √3,
resulting in values of 5.7735,57.735, and 577.35.
The Y/z connection method is based on the original ratio of 5.7735,57.735, and 577.35.
The D/z ratio is 3.3333,33.333,333.33, which is 1/3 of the original ratio.
⑤ Output group ratio precision: 0.05%
⑥Connection group settings: D/y, D/d, D/z, Y/y, Y/d, Y/z,
Group Calibration Section
Features and Advantages
Precision & Compliance Assurance
Voltage ratio measurement accuracy of 0.01 class and output group ratio precision of 0.05%, ensuring accurate and reliable calibration results to meet the metrological requirements of professional test equipment;
Strictly complies with GB1094.1-1996 General Rules for Power Transformers and JJG314-2010 Measurement of Voltage Transformers, adapting to mainstream global industry standards;
Passive voltage ratio standard design, no active signal interference, and data stability during calibration is superior to similar equipment.
Wide Ratio Coverage & Precise Adjustment
Output voltage ratio range of 1.00000～10000, covering the calibration needs of low-voltage to high-voltage transformers, adapting to basic ratios such as 10, 100, 1000 and derived ratios;
Equipped with seven decimal adjustment dials (10⁻⊃1; to 10⁻⁷), allowing customized precise ratio setting without complex calculations, directly corresponding to reciprocal 1/Kx adjustment;
Intelligent ratio adaptation under different connection groups (e.g., multiply by √3 for Y/D connection, divide by √3 for D/Y connection), automatically matching universal industry ratio conversion logic.
Full-Scenario Connection Group Support
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Flexible Switching Between Two Working Modes
Calibration mode: Act as a standard device to calibrate external ratio & group testers, switch to "calibration" gear to output stable standard signals;
Self-test mode: Switch to "self-test" gear, the device acts as an independent inductive voltage divider to realize self-precision verification, ensuring long-term use reliability;
Mode switching requires no complex wiring, only operated by the rear panel switch, adapting to both laboratory and on-site calibration scenarios.
Customer service
1. We provide one-year warranty, during this period, we are responsible for any mechanical failures or faulties caused by design technology or material and handle any improper erors for free; we will still provide free technical assistance beyond this period (only charge parts' cost price and traveling allowance).
2. Within guarantee period, we are liable for any faults caused by defective design or materials.
3. If there are any failures because of our products' quality in use, we will provide the phone instructions within 2 hours to help solving the problems,and we will supply on-line video technical communication if necessary.
4. We can dispatch the experienced engineer for installation and debugging after receiving the
customer's notification.
5.We wil provide fre training,installation,debugging service inChina,it is also available to send professional staff overseas for installation and debugging, only the traveling costs and labor costs will be borne by you.
6. After sale, we provide regular phone service to collect the customer's suggestions and advice.