Formula of high pressure AC zinc oxide resistance chip

A zinc oxide resistor, high-voltage AC technology, applied in the direction of varistors, varistor cores, etc., can solve the problems of low energy tolerance and aging performance of resistors, and achieve uniform and stable internal structure, energy resistance The effect of improved resistance and excellent aging performance

Active Publication Date: 2011-09-14
FUSHUN ELECTRIC PORCELAIN MFG CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, with the construction of 750kV and 1000kV ultra-high voltage AC transmission lines, the requirements for the performance of resistors are higher and stricter. The energy tolerance and aging performance of existing resistors are low, which cannot meet the requirements at all.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Formula of high pressure AC zinc oxide resistance chip
  • Formula of high pressure AC zinc oxide resistance chip
  • Formula of high pressure AC zinc oxide resistance chip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: comprise following component and weight percent:

[0024] Bi 2 o 3 : 5.07%; Sb 2 o 3 : 5.47%; Co 2 o 3 : 1.16%; MnCO 3 NiO: 1.31%; Aluminum nitrate: 0.03%; Glass powder: 0.02%; ZnO: 85.98%.

Embodiment 2

[0025] Embodiment 2: comprise following component and weight percent:

[0026] Bi 2 o 3 : 5.23%; Sb 2 o 3 : 5.60%; Co 2 o 3 : 1.12%; MnCO 3 NiO: 1.30%; Aluminum nitrate: 0.04%; Glass powder: 0.02%; ZnO: 85.69%.

Embodiment 3

[0027] Embodiment 3: comprise following component and weight percent:

[0028] Bi 2 o 3 : 5.22%; Sb 2 o 3 : 5.65%; Co 2 o 3 : 1.12%; MnCO 3 NiO: 1.00%; NiO: 130%; Aluminum nitrate: 0.04%; Glass powder: 0.02%; ZnO: 85.65%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
Login to View More

Abstract

The present invention discloses a high-voltage AC zinc oxide resistance chip. The formulation comprises the following additives and a main material ZnO by weight percentage: 4.5 to 5.5 percent of Bi2O3, 5.0 to 6.0 percent of Sb2O3, 0.8 to 1.2 percent of Co2O3, 0.9 to 1.1 percent of MnCO3, 1.0 to 1.5 percent of NiO, 0.02 to 0.04 percent of aluminum nitrate, 0.010 to 0.050 percent of glass dust and 85.0 to 87.5 percent of ZnO. The resistance chip has the following characteristics and advantages: 1, the resistance chip is a new formulation system using the zinc oxide, dibismuth trioxide, diantimony trioxide, nickel protoxide, cobalt sesquioxide and manganous carbide as main compositions, so that the internal structure of the resistance chip is more uniform and stable, and the energy endurance capability is greatly improved; and 2, the nickel protoxide and the glass dust are introduced into the resistance chip so that the stability and the aging performance of the resistance chip is more excellent.

Description

1. Technical field [0001] The invention belongs to the technical field of resistor sheets for lightning arresters, and in particular relates to a high-voltage AC zinc oxide resistor sheet, which is used for preparing resistor sheets for ultra-high voltage AC transmission arresters. 2. Background technology [0002] Zinc oxide resistors were first developed in the 1960s, and have developed rapidly because of their superior pressure-sensitive properties. They are divided into DC and AC according to their uses. AC zinc oxide resistors are the core components of AC zinc oxide arresters and are widely used in AC power transmission systems. It is based on the composition of zinc oxide and other multi-element metal oxides, and is sintered at high temperature. It is a chip resistor with good nonlinear volt-ampere characteristics, and its performance level restricts the grade of the arrester. In recent years, with the construction of 750kV and 1000kV ultra-high voltage AC transmissi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): H01C7/112C04B35/453
Inventor张海滨吕宏叶立茂郭文杰于新江
OwnerFUSHUN ELECTRIC PORCELAIN MFG CO LTD