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Multilayer small-size mutually inverse type non-inductive resistor

A non-inductive resistance, reciprocal technology, applied in the direction of resistors, non-adjustable metal resistors, spiral coil/spiral disk resistance elements, etc., can solve the problem of large resistance size, and achieve the effect of reducing the overall length

Inactive Publication Date: 2015-10-28
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above problems, the present invention provides a multi-layer small-volume reciprocal non-inductive resistor, which effectively solves the problem that the resistor size is too large in the development process of the closed compact impulse voltage generator

Method used

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  • Multilayer small-size mutually inverse type non-inductive resistor
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  • Multilayer small-size mutually inverse type non-inductive resistor

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Embodiment Construction

[0023] The technical solutions of the present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0024] like figure 1 As shown, the non-inductive resistor 2 of the present invention is arranged in the compact impulse voltage generator 1, and the resistance value of the non-inductive resistor 2 is calculated according to the wavefront resistance and the half-peak resistance in the impulse voltage generator as follows:

[0025] T f ≈2.33(R d +R f )C 1 C 2 / (C 1 +C 2 );

[0026] T t ≈0.693(R d +R t )(C 1 +C 2 );

[0027] where T f is the front time, T t is the half-peak time, R d is the total damping resistance inside the shock generator, R f is the resistance value of segmented non-inductive wave front resistance, R t is the half-peak resistance value, C 1 is the capacitor of the impulse voltage generator, C 2 is the total capacitance of the sample.

[0028] like Figures 2 to 4 As shown, a multi-layer small-v...

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Abstract

The invention relates to the technical field of impulse voltage generators, in particular to a multilayer small-size mutually inverse type non-inductive resistor. The multilayer small-size mutually inverse type non-inductive resistor comprises a resistance insulating barrel and resistance wires, an inductance adjusting area is arranged at the end of the resistance insulating barrel, resistance wire winding grooves and resistance transposition grooves are formed in the resistance insulating barrel, and the resistance wires are wound in the resistance wire winding grooves and the resistance transposition grooves in a matched mode. The multilayer small-size mutually inverse type non-inductive resistor is mainly applied in a closed compact type impacting device, is surrounded by gas with high insulating property, and therefore the space between resistance grooves can be quite small. The resistor adopts a multilayer winding structure, the space of the insulating barrel is utilized fully, and the overall length of the resistor is reduced, insulating rings are mounted between two layers of resistance wires, and the insulating intensity of each layer is guaranteed. The number of the resistance grooves for winding the resistor is an even number, the winding direction of each layer of resistor is opposite, the winding directions of adjacent resistance discs are opposite, certain adjusting grooves are reserved, and inductance generated in resistor winding process is adjusted to make residual inductance to be reduced to the minimum.

Description

technical field [0001] The invention relates to the technical field of impulse voltage generators, in particular to a multi-layer small-volume reciprocal non-inductive resistor. Background technique [0002] Impulse voltage generator is an important test device for electrical equipment, which can generate lightning impulse voltage full wave, lightning impulse voltage cut-off wave and operating impulse voltage wave. With the development of ultra-high voltage and ultra-high voltage projects in my country, the high-voltage level of power equipment continues to increase, and the volume and weight of the corresponding impulse voltage generators also continue to increase. For example, the total height of the traditional 4800kV impulse generator is 17.2m, and the floor area is 6.07× It is 6.6m and weighs about 30t, which not only increases the manufacturing and transportation costs of the test equipment, but also puts forward higher requirements for the height and area of ​​the labo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01C3/02H01C3/16
CPCH01C3/02H01C3/16
Inventor 吴义华蔡炜聂德鑫万启发詹浩凡勇房体友胡婷
Owner STATE GRID CORP OF CHINA
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