Sweep Frequency Response Analyzer

HTBX-H Sweep Frequency Response Analyzer

Internal structure fault detection of power transformers essential tools

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Product Introduction

Transformer winding deformation test instrument Based on the measurement of the characteristic parameters of transformer internal winding, the internal fault frequency response analysis (FRA) method which is being developed in developed countries is adopted to make an accurate judgment of transformer internal fault.

After the design and manufacture of transformer is completed, the line coil and internal structure are determined. Therefore, for a multi-winding transformer line coil, if the voltage grade is the same and the winding method is the same, the corresponding parameters (Ci, Li) of each line coil should be determined. Therefore, the frequency domain characteristic response of each line coil is determined accordingly, and the frequency spectrum of the corresponding three-phase line coil is comparable to some extent.

The distribution parameters of transformer windings will change when short-circuit between turns and phases occurs in the test process, or collision occurs in the transportation process, resulting in the relative displacement of the line coil, and the deformation of the line coil caused by electromagnetic tension in the short-circuit and fault state during the operation process. Then it influences and changes the original frequency domain characteristics of the transformer, that is, amplitude change of frequency response and resonance frequency offset. The transformer winding test instrument developed according to the response analysis method is such a novel non-destructive testing equipment for transformer internal faults. It is suitable for the internal structure fault detection of 63kV ~ 500kV power transformer.

product names:Electric power transformer winding deformation test instrument、Transformer winding deformation detector、Transformer winding deformation meter、Transformer winding deformation analyzer

Product Parameters

scanning way:(The instrument has a linear sweep measurement system and a segmented sweep measurement system )

Linear sweep distribution Sweep measuring range (1kHz)~(2MHz)
Sectional sweep measurement distribution Sweep measuring range (0.5kHz)~(1MHz)
Range of amplitude (-100dB)~(+20dB)
Accuracy of amplitude measurement ±1dB
Sweep accuray 0.01%
signal input impedance 1MΩ
signal output impedance 50Ω
In phase test repetition rate 99.5%
Dimensions 300×340×120mm3
Dimensions of Aluminum Alloy Packaging Box 310×400×330mm3
Weight 10kg

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Product Certificate

Enterprise products in strict accordance with international and national standards and rules of industry production, through the national, provincial and municipal electric power research institute and electric power authorities detection, measuring center, fully passed the ISO9001 international quality management system certification, the licence for manufacturing measuring instruments of the People's Republic of China, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, GB/T28001-2011 occupational health and safety management system requirements.

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