2016年11月21日星期一
2016年9月22日星期四
Fuse Test Report(WENZHOU SHUGUANG FUSE CO.,LTD)
SGS1(Made-in-china.com Test Report)
SGS2(Made-in-china.com Test Report)
High Voltage Fuse Link Test Report
17KV Lightning Arrester Test Report
33KV Lightning Arrester Test Report
High Voltage Current-Limiting Fuse(XRNP-12KV)
High Voltage Current-Limiting Fuse(XRNT-12KV)
High Voltage Current-Limiting Fuse(XRNT-24KV)
XRNT-24KV(NEIC Test Report)
High Pressure Drop Type(SGS Test Report)
Fuse Wire(SGS Test Report)
J Type Fuses(SGS Test Report)
J Type Fuse Base(SGS Test Report)
Partial Export Products(GTS Test Report)Above
Partial Export Products(GTS Test Report)Below
Partial Export Products(PVOC Test Report)
Outdoor High Voltage Drop Cut Fuse(RW-12KV)
http://www.shuguangfuse.com/down.asp
SGS2(Made-in-china.com Test Report)
High Voltage Fuse Link Test Report
17KV Lightning Arrester Test Report
33KV Lightning Arrester Test Report
High Voltage Current-Limiting Fuse(XRNP-12KV)
High Voltage Current-Limiting Fuse(XRNT-12KV)
High Voltage Current-Limiting Fuse(XRNT-24KV)
XRNT-24KV(NEIC Test Report)
High Pressure Drop Type(SGS Test Report)
Fuse Wire(SGS Test Report)
J Type Fuses(SGS Test Report)
J Type Fuse Base(SGS Test Report)
Partial Export Products(GTS Test Report)Above
Partial Export Products(GTS Test Report)Below
Partial Export Products(PVOC Test Report)
Outdoor High Voltage Drop Cut Fuse(RW-12KV)
http://www.shuguangfuse.com/down.asp
Fuse Test Report(WENZHOU SHUGUANG FUSE CO.,LTD)
SGS1(Made-in-china.com Test Report)
SGS2(Made-in-china.com Test Report)
High Voltage Fuse Link Test Report
17KV Lightning Arrester Test Report
33KV Lightning Arrester Test Report
High Voltage Current-Limiting Fuse(XRNP-12KV)
High Voltage Current-Limiting Fuse(XRNT-12KV)
High Voltage Current-Limiting Fuse(XRNT-24KV)
XRNT-24KV(NEIC Test Report)
High Pressure Drop Type(SGS Test Report)
Fuse Wire(SGS Test Report)
J Type Fuses(SGS Test Report)
J Type Fuse Base(SGS Test Report)
Partial Export Products(GTS Test Report)Above
Partial Export Products(GTS Test Report)Below
Partial Export Products(PVOC Test Report)
Outdoor High Voltage Drop Cut Fuse(RW-12KV)
http://www.shuguangfuse.com/down.asp
SGS2(Made-in-china.com Test Report)
High Voltage Fuse Link Test Report
17KV Lightning Arrester Test Report
33KV Lightning Arrester Test Report
High Voltage Current-Limiting Fuse(XRNP-12KV)
High Voltage Current-Limiting Fuse(XRNT-12KV)
High Voltage Current-Limiting Fuse(XRNT-24KV)
XRNT-24KV(NEIC Test Report)
High Pressure Drop Type(SGS Test Report)
Fuse Wire(SGS Test Report)
J Type Fuses(SGS Test Report)
J Type Fuse Base(SGS Test Report)
Partial Export Products(GTS Test Report)Above
Partial Export Products(GTS Test Report)Below
Partial Export Products(PVOC Test Report)
Outdoor High Voltage Drop Cut Fuse(RW-12KV)
http://www.shuguangfuse.com/down.asp
2016年7月25日星期一
11kV lightning arrestor and exploding disconnecter.
2015年12月15日发布
This is a lightning arrester from an 11kV power distribution line with an interesting feature to clear itself electrically when sustained current flows through it.
Inside a robust fibreglass insulated core is a stack of MOV's (Metal Oxide Varistors) which have a combined voltage to handle the regular peak voltage of the 11kV supply (presumably 15.5kV peak) plus a safety margin. However, when a higher voltage transient occurs on the line the MOV voltage is exceeded and they temporarily develop a lower resistance which shunts the transient to ground to protect other components on the line.
If an excessive over-voltage occurs or the MOVs start to break down after passing a modest amount of transients then there is a disconnecter attached to the bottom of the unit that will literally detonate and blow the ground cable off the end of the unit for safety. The primary function of this is to prevent the lightning arrester from passing significant current from the normal 11kV supply when it fails.
To achieve the fault detection and clearing, the disconnecter has a resistor in it that has enough mass to pass transients without heating up excessively, but when sustained current through it causes it to heat up it ignites an explosive charge that physically blows the assembly apart and lets the ground cable fall down away from the arrester, thus breaking the circuit.
At this point the arrester should be investigated, as the base is not designed to have a sustained open circuit 11kV leakage across it via the MOVs.
One of the most intriguing things about the insulator is that the water shedding disks are made of a silicone rubber material that makes the unit quite rubbery and floppy feeling, but makes it resistant to impact, thermal and UV damage.
In the video I deliberately trigger the explosive charge by applying 240V across a disconnecter. The internal resistance of around 75 ohms allowed about 3A to pass giving an internal dissipation of about 750W. This caused the unit to detonate after a few seconds. I did the experiment with the disconnecter under water to absorb the impact, contain the bits and avoid making a huge explosion in the neighbourhood.
Inside a robust fibreglass insulated core is a stack of MOV's (Metal Oxide Varistors) which have a combined voltage to handle the regular peak voltage of the 11kV supply (presumably 15.5kV peak) plus a safety margin. However, when a higher voltage transient occurs on the line the MOV voltage is exceeded and they temporarily develop a lower resistance which shunts the transient to ground to protect other components on the line.
If an excessive over-voltage occurs or the MOVs start to break down after passing a modest amount of transients then there is a disconnecter attached to the bottom of the unit that will literally detonate and blow the ground cable off the end of the unit for safety. The primary function of this is to prevent the lightning arrester from passing significant current from the normal 11kV supply when it fails.
To achieve the fault detection and clearing, the disconnecter has a resistor in it that has enough mass to pass transients without heating up excessively, but when sustained current through it causes it to heat up it ignites an explosive charge that physically blows the assembly apart and lets the ground cable fall down away from the arrester, thus breaking the circuit.
At this point the arrester should be investigated, as the base is not designed to have a sustained open circuit 11kV leakage across it via the MOVs.
One of the most intriguing things about the insulator is that the water shedding disks are made of a silicone rubber material that makes the unit quite rubbery and floppy feeling, but makes it resistant to impact, thermal and UV damage.
In the video I deliberately trigger the explosive charge by applying 240V across a disconnecter. The internal resistance of around 75 ohms allowed about 3A to pass giving an internal dissipation of about 750W. This caused the unit to detonate after a few seconds. I did the experiment with the disconnecter under water to absorb the impact, contain the bits and avoid making a huge explosion in the neighbourhood.
2016年6月25日星期六
2016年6月24日星期五
温州市曙光熔断器有限公司-户外封闭式喷射熔断器(www.fusechina.cn)
Company websit: www.FuseChina.cn
International Business Dept.
Sales Manager: Ms.marry
Email: shuguang1@china-shuguang.com
MOBILE:+86-18358778817
TEL:0086-577-61728726
FAX:+86-577-61728721
2016年6月11日星期六
WENZHOU SHUGUANG FUSE CO.,LTD
WENZHOU SHUGUANG FUSE CO.,LTD
ADD:No.431 daxing west road Linshi town,YueQing City,Zhejiang Province
Aimee
Tel: +86-577-61728726
Fax: +86-577-61728721
Mobile: +86-18358778817
E-mail:shuguang1@china-shuguang.com
Skype: mary srolan
Website: www.fusechina.cn www.shurong.cn
2016年6月3日星期五
Contract WENZHOU SHUGUANG FUSE CO.,LTD
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About WENZHOU SHUGUANG FUSE CO.,LTD
| Wenzhou Shuguang
Electrical Co.,Ltd. Wenzhou Shuguang Fusc Joint production
Manufactory professionally products and markets various fuses.Sinceit is
establishment,it has been following the business guideline to conduct ghe
technology,improve the quality and satisfy the customers' and developing the new
products.We have a high-quality employee team,advanced technology and complete
testing facilitywhich bring the design,processing,manufacturing and after-sale
service together. In recent years,our factory developed rapidly and achieved
greatly in economic and social effects. Wecontinuously inensify the quality
management system and pay great attention to the technology flow as well as
develop the new products. The fine quality materials,precise testion facility
are the backing force in the quality control system.Our major products
high-voltage fuse,metal oxide lightening conductor, indoor wall bushing and
insulator etc., are tested by authority and the result came to be up to the
technical standard.The products are sold to whole country.The stable quality
guarantee and compltet after-sale service help us possess the market.
Our principle is efficient,premium, practical,crcative' . We heartily welcome the customer svisit us and make cooperation. www.fusechina.cn |
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