Product Details

Current Transformer On-site Calibrator DARUI Electric recommends Main Features: Current Transformer On-site Calibrator combines the functions of measuring current transformer errors using the recursive method and voltage transformer errors using the potential difference method, facilitating on-site verification of metering devices. >On-site verification of current transformers does not require standard current transformers, current boosters, load boxes, voltage regulators, or high-current cables. It uses extremely simple test wiring and operation to achieve current transformer verification, greatly reducing work intensity and improving work efficiency, making on-site transformer verification convenient. Current Transformer On-site Calibrator internally contains a standard voltage transformer with the same ratio as the tested current transformer, with accuracy up to 0.05 class, accurately measuring the ratio and no-load error of the tested current transformer. Then, combined with impedance and admittance test results, it calculates the transformer error. >Uses a near-power-frequency off-frequency power supply for testing, preventing on-site power frequency electromagnetic radiation and series interference. >Wide measurement range, up to 5A/5A~25000A/5A or 5A/1A~6300A/1A. >Has functions for measuring current transformer ratio and secondary winding internal resistance. >Uses an 800×600 high-resolution large-screen color LCD display with user-friendly interface and operation design, and touch screen auxiliary operation for more convenient and faster operation. >Uses precise software algorithms to further improve measurement data accuracy. >Intelligently judges external wiring conditions, prompts wiring errors, ratio errors, polarity errors, etc. >Automatically rounds test data and determines whether it exceeds tolerance. Out-of-tolerance data is displayed in orange, and the bottom right corner of the window shows out-of-tolerance, making the data characteristics of the transformer intuitive and clear. >Directly issues on-site verification conclusions: pass or out-of-tolerance. >Large-capacity memory can store up to 1000 sets of on-site test data. >Uses RS232 or USB interface to connect to a computer to print data certificates. >Uses engineering plastic mold casing that is shockproof and pressure-resistant, ensuring the safety of on-site operators and equipment. Technical Specifications: >Current Transformer Error Measurement Section ①Overall accuracy: 1/3 of the error limit of the tested current transformer ②Test range: 5A/5A~25000A/5A or 5A/1A~6300A/1A   ③Operating range of tested current transformer: 1%～200%  ④Secondary load: 2.5VA～300VA, COSφ＝0.1～1.0  ⑤Accuracy range of tested current transformer: 1.0, 0.5, 0.5S, 0.2, and 0.2S  ⑥Resistance and admittance measurement error ≤5.0% >Measurement range: R: 0.00Ω～20.0Ω             Y: 0.000mS～100.0mS >Instrument power consumption: 20VA  >Instrument accuracy class: 0.05S class >Maximum dimensions (cm): 460×375×183 >Weight (kg): 10 Product Overview: High-voltage energy metering devices in power plants and substations, as well as energy metering devices for a large number of users, are related to the interests of power generation, transmission, supply, and users. To ensure measurement accuracy, verification must be carried out in accordance with SD109 "Verification Regulation for Energy Metering Devices" and DL/T448-2000 "Technical Management Regulation for Energy Metering Devices". Our company's LYCT-D Current Transformer On-site Calibrator is developed with high-end testing technology, large-scale electronic circuit design, and in compliance with relevant national regulations. It solves the problems of high work intensity and cumbersome operation in on-site verification of current transformers and voltage transformers, while the product is reliable in performance and powerful in function.

Product Introduction

The Current Transformer On-site Calibrator is developed with high-end testing technology, large-scale electronic circuit design, and in compliance with relevant national regulations. It solves the problems of high work intensity and cumbersome operation in on-site verification of current transformers and voltage transformers, while the product is reliable in performance and powerful in function.



Note: The above information and technical parameters are compiled and released by Yangzhou DARUI Electric Co., Ltd.