NDSH-V Transformer Short-Circuit Impedance and No-Load Tester-Wuhan Nanxing Electric Power Technology Co., Ltd.

Phone: 400-027-8938

Mobile: 133 9714 9829

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NDSH-V Transformer Short-Circuit Impedance and No-Load Tester

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Transformer Testing Series

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NDSH-V变压器短路阻抗空负载测试仪

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Product Details

■ Product Overview

Transformer short-circuit impedance / The no-load tester is a next-generation transformer parameter testing instrument independently developed by our company. It is used for on-site and laboratory testing of distribution transformers, 35KV An instrument for measuring the short-circuit impedance of power transformers at or above the specified class. The device features a large‑screen color LCD display, a Chinese‑language menu with on‑screen prompts, and touch‑screen operation, making it simple and convenient to use. It is equipped with a high‑speed thermal printer and includes data‑logging functionality, facilitating easy storage and printing of measurement results. ; Saved data can be accessed via U Save the data to a computer. The instrument is compact and lightweight, making it easy to carry and highly convenient for field use. Employing this device can significantly boost work efficiency and reduce labor intensity. With its refined design, superior performance, and robust functionality, it is the preferred choice for users.

■ Product Features

The instrument features a built-in adjustable power supply output, suitable for both single-phase and three-phase transformers. , With just a single wiring connection, the instrument can perform measurements for all winding pairs, making testing and wiring straightforward.

Meet the requirements of DL/T1093-2008 The tests and algorithms specified in the “Guidelines for Reactance-Based Detection and Diagnosis of Winding Deformation in Power Transformers.”

《 DL/T1093-2008 》Clearly stipulates :5.4.1a “In principle, single-phase parameters are tested using the single-phase method.” ;5.4.1e “When abnormal test results are detected, all windings shall be retested using the single-phase method.” This instrument employs a single-phase measurement approach and, during the three-step voltage‑boost procedure for three‑phase transformers, can automatically calculate the short-circuit impedance, reactance, and inductance of each phase.

The instrument employs phase-locked loop technology to perform synchronous sampling of AC signals, ensuring accurate measurement data.

The instrument can measure voltage, current, power, frequency, and more.

The standalone device offers a wide measurement range for voltage and current and supports external connections. CT 、 PT Further expand the measurement range.

It features built-in non-volatile memory for long-term storage of measurement data and includes a built-in printer.

Test data can be imported into a computer for convenient further analysis or storage.

All menus and operation prompts are in Chinese, making the interface simple and intuitive.

Transflective large‑screen LCD, providing clear visibility even in direct sunlight.

■ Product Specifications

Technical Specifications	Detailed specifications
Measurement accuracy	Voltage / Electric current :0.2 level
Power	COS phi >0.1:0.5 level ;COS φ≤ 0.1:1.0 level
Impedance	COS phi >0.1:0.5 level ;COS φ≤ 0.1:1.0 level
Voltage measurement range	AC 3V~300V
Internal power output range	Voltage 0~250V , electric current 0~10A
Current measurement range	AC 0.2A~20A
Operating temperature	-10 °C ~50 °C
Operating humidity	0~80%
Power supply	AC220V ± 10% 50Hz ± 1Hz
External dimensions	360x220x150mm
Instrument weight	5Kg

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NDSH-V Transformer Short-Circuit Impedance and No-Load Tester

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