户内高压真空断路器ZN23-40.5

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产品名称: 户内高压真空断路器ZN23-40.5

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简单介绍

户内高压真空断路器ZN23-40.5 ZN23-40.5型真空断路器为额定电压40.5KV,三相交流50HZ的户内高压电器设备，适用于工矿企业，变电站等输配电系统，作控制和保护开关，尤其适用于治金、电孤炼钢等需频率操作的行业，作为控制和保护设备。

户内高压真空断路器ZN23-40.5 的详细介绍

户内高压真空断路器ZN23-40.5

● 概述
ZN23-40.5型真空断路器为额定电压40.5KV,三相交流50HZ的户内高压电器设备，适用于工矿企业，变电站等输配电系统，作控制和保护开关，尤其适用于治金、电孤炼钢等需频率操作的行业，作为控制和保护设备。

● 型号含义

● 使用环境条件
a周围空气温度：上限+40℃。下限-40℃；
b海拔高度：≤1000m(若需增高海拔，则额定绝缘水平相应提高)；
c振幅：地震烈度不超过8度；
d空气相对湿度日平均值不大于95%,月平均值不大于90%；
e无火灾、爆炸危险、严重污染、化学腐蚀及剧烈震动的场所。

● 主要技术参数

● 外形及安装尺寸

PSI Isolating Sleeves

Isolating sleeves are available in the following materials:

Mylar

Polyethylene

Phenolic

Nomex®

G-7 Silicon Glass

G-10 Epoxy Glass

G-11 Epoxy Glass

Designed to easily fit over standard size flange bolts and studs within standard size bolt holes, PSI isolating sleeves have a wall thickness of 1/32" (0.79 mm) and are used with separate isolating and steel washers. They are available for standard American bolt sizes from 1/2" (12.7 mm) to 3-1/2" (88.9 mm) as well as metric bolt sizes from 12 mm and larger.

PSI Isolating Washers

Isolating washers have a standard thickness of 18" and are available in the following materials:

High Strength Glass Clad Phenolic

G-3 High Temp. Phenolic

G-7 Silicon Glass

G-10 Epoxy Glass

G-11 Epoxy Glass

Designed to provide tough, positive isolation. PSI isolating washers are available for bolt sizes from 1/2" (12.7 mm) through 3-1/2" (88.9 mm) and are made to fit over the isolating sleeves.

PSI One-piece Sleeves & Washers

Molded from acetal resin and available for bolt diameters from 1/2" to 1-1/2" (12.7 to 38.1 mm), one-piece sleeves and washers are structurally tough but limited to applications where the flange temperature does not exceed +180°F (+80°C) and compressive loads do not exceed 18,000 psi. They are generally used as single washer sets because they're molded to specific lengths and, in many instances, are longer than the thickness of a single flange. A washer centering ring positions the steel washer on the unit properly to avoid uneven pressures on the washers. G-10 one-piece sleeve / washer assemblies are available for additional strength and convenience.

PSI Steel Washers

Steel washers are designed to fit over the isolating sleeve or the retainer ring on the one-piece sleeves and washers. The outside diameter is sized to fit within the bolt facing on ANSI standard flanges. They are made of 1/8" (3.2mm) thick plated hot-rolled steel.

Sleeve Material Physical Properties

ASTM Test	Property	Polye- thylene	Mylar	Nomex	Phenolic	Silicone Glass G-7*	Epoxy Glass G-10	Epoxy Glass G-11	1-piece sleeve & washer
D149	Volts/mil	400	4000	400	400	350	400	400	1,200
D695	Compressive strength psi	N/A	N/A	N/A	N/A	N/A	N/A	N/A	18,000
D229	% water absorption	0.01	0.8	N/A	1.6	0.10	0.10	0.10	0.22
	Operating temp ºF	-30 to +180	-75 to +300	-65 to +450	-20 to +225	Cryogenic to +450	Cryogenic to +280	Cryogenic to +320	-30 to +180
	Operating temp ºC	-34 to +82	-59 to +149	-54 to +232	-29 to +107	Cryogenic to +232	Cryogenic to +138	Cryogenic to +160	-34 to +82
D790	Flexural strength psi	7,000	13,000	20,000	16,000	20,000	55,000	55,000	1,400
D790	Cut-thru resis- tance ft-lbs	1,800	3,500	4,000	No test	No test	16,000	No test	3,400

ASTM Test	Property	Glass clad phenolic	Hi-temp Phenolic G-3	Silicone Glass G-7*	Epoxy Glass G-10	Epoxy Glass G-11	1-piece sleeve & washer
D149	Volts/mil	500	550	350-400	550	550	1,200
D695	Compressive strength psi	33,000	50,000	40,000	50,000	50,000- 80,000	18,000
D229	% water absorption	1.6	0.7	0.07	0.10	0.10	0.22
	Operating temp ºF	-65 to +300ºFº	-65 to +392ºF	Cryogenic to +450ºF	Cryogenic to +280ºF	Cryogenic to +350ºF	-30 to +180ºF
	Operating temp ºC	-54 to +149ºC	-54 to +200ºC	-Cryogenic to +232ºC	Cryogenic to +138ºC	Cryogenic to +177ºC	-34 to +82ºC

G-7 material should not be used with hydrocarbons, not even trace amounts.