NDBYC-2000 Series On-Load Tap Changer Tester-Wuhan Nanxing Electric Power Technology Co., Ltd.

Phone: 400-027-8938

Mobile: 133 9714 9829

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NDBYC-2000 Series On-Load Tap Changer Tester

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Transformer Testing Series

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Product Details

■ Product Overview

The on-load tap changer tester is a comprehensive measuring instrument used to assess and analyze the electrical performance parameters of on‑load tap changers in power transformers and specialized transformers within power systems. It employs computer control and, through a specially designed measurement circuit, can measure such parameters as transition time, transition waveform, transition resistance, and three‑phase synchronism. Depending on requirements and site conditions, users may perform measurements directly from the tap changer leads or by connecting directly to the transformer’s three‑phase bushings and neutral point.

■ Product Features

Light‑intensity oscilloscope function; the instrument features three channels for simultaneous recording. A 、 B 、 C Three-phase, the instrument can automatically capture and display the transient process, including changes in transition resistance and time. It is unaffected by weather conditions and offers significantly superior performance compared to optical oscilloscopes.

It boasts robust comprehensive capabilities, enabling the measurement of various parameters of on‑load tap changers within a single instrument. These include switch selection, the presence or absence of break points throughout the switching process, transition waveforms, transition times, transition resistances, and three‑phase synchronism. Paired with dedicated function keys, it allows for analysis of time intervals and resistance values in the waveform.

Print output. The instrument is equipped with a high-speed, front‑paper‑change, panel‑mounted printer.

It features excellent anti-interference performance. The all‑aluminum alloy enclosure, together with built-in power‑line noise filters and anti‑interference circuitry, ensures reliable measurements even in environments with poor power quality and strong electromagnetic interference.

■ Product Specifications

Technical Specifications	Detailed specifications
Output current	1.0A、0.5A、0.2A
Open-circuit voltage	24V
Measurement accuracy	Transition resistance : ± (5% Reading ± 0.1Q)
Transition period	± (0.1% Reading ± 0.2ms)
Sampling rate	20kHz
Storage method	Local Storage

■ Product Selection Specification Table

Model number	Test current	Measurement accuracy	Measurement range	With printing	With battery	Mobile phone APP	Structure Form
2000	1.0A.0.5A.0.3A , Three speed settings available	± ( Reading x5%+5 characters )	1.0A file 0.1-10 Omega 0.5A File 5-20 Omega 0.3A File 10-40 Omega	There is	None	None	Box-type
2002	1.0A、0.5A0.3A、 Three speed settings available	± ( Reading x5%+5 characters )	1.0A file 0.1-10 Omega 0.5A File 5-20 Omega 0.3A File 10-40 Omega	There is	None	None	Box-type
2012	3A/1A file 0.6A/0.2A file	Transition resistance :+5% Reading ± 0.1Q Transition period : ± 0.5% Reading ± 0.2mS	1.0A file 0.4-20 Omega 0.2A File 10-100 Omega	There is	None	None	Box-type
2013S	1.0A、0.5A、0.2A	Transition resistance : ± (5% Reading ± 0.1Q) Transition period : ± (0.1% Reading ± 0.2ms)	0.3Ω~5Ω ( 2.0A ) 1Ω~20Ω ( 1.0A ) 5Ω~40Ω ( 0.5A ) 20Ω~100Ω ( 0.2A ) Transition period :0~320ms	There is	There is	There is	Handheld
2012A	1.0A、0.5A、0.2A	Transition resistance : ± (5% Reading ± 0.1Q) Transition period : ± (0.1% Reading ± 0.2ms)	0.3Ω~20Ω ( 1.0A ) 5Ω~40Ω ( 0.5A ) 20Ω~100Ω ( 0.2A ) Transition period :0~320ms	There is	None	There is	Box-type
2012B	1.0A、0.5A.0.2A	Transition resistance : ± (5% Reading ± 0.1 Omega ) Transition period : ± (0.1% Reading ± 0.2ms)	0.3Ω~20Ω ( 1.0A ) 5Ω~40Ω ( 0.5A ) 20Ω~100Ω ( 0.2A ) Transition period :0~320ms	There is	There is	There is	Box-type
2013A	2.0A、1.0A. 0.5A、0.2A	Transition resistance : ± (5% Reading ± 0.1Q) Transition period : ± (0.1% Reading ± 0.2ms)	0.3Ω~5Ω ( 2.0A ) 1Ω~20Ω ( 1.0A ) 5Ω~40Ω ( 0.5A ) 20Ω~100Ω ( 0.2A ) Transition period :0~320ms	There is	None	There is	Box-type
2013B	2.0A、1.0A 0.5A、0.2A	Transition resistance : ± (5% Reading ± 0.1Q) Transition period : ± (0.1% Reading ± 0.2ms)	0.3Ω~5Ω ( 2.0A ) 1Ω~20Ω ( 1.0A ) 5Ω~40Ω ( 0.5A ) 20Ω~100Ω ( 0.2A )	There is	There is	There is	Box-type
J	0mA~100mA. 0A~10A	0.5 level	Three-phase four-wire 0~500V( Adjustable voltage )	There is	None	None	Box-type
JZ	0.5A、1A ( Two options available )	0.2 level	0.5A File 0-20 Omega 1A File 0-10 Omega	There is	None	None	Box-type

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NDBYC-2000 Series On-Load Tap Changer Tester

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