High-voltage,Cable,Testing,Nor business, insurance High-voltage Cable Testing
Small offices have unique needs, and thatincludes document shredding. Designed with the smaller business inmind, the Dahle 20314 is a cross-cut shredder that offers Level 3security and brings you into compliance with federal regulations. The As we all know to live in this world we have to perform some activity by which we can earn money. There are many activities by which we can earn money and meet the standards to live in this society. And from one of them is franchise. Franc
Normal 0 false false false MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable{mso-style-name:"Table Normal";mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-parent:"";mso-padding-alt:0in 5.4pt 0in 5.4pt;mso-para-margin:0in;mso-para-margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:10.0pt;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman";mso-ansi-language:#0400;mso-fareast-language:#0400;mso-bidi-language:#0400;}High-voltage cable testing,sometimes known as HiPot (High Potential), is a method of testing used toensure adequate insulation in a myriad of applications ranging from electricmotors and printed circuit boards to transformers and industrial cables.Under normal conditions, any electricaldevice will produce a minimal amount of leakage current due to the voltages andinternal capacitance present within the product. Yet due to design flaws orother factors, the insulation in a product can break down, resulting inexcessive leakage current flow. This heavier than normal current flow throughthe diodes will cause them to overheat and fail. Users of this system may selectdual-polarity DC and cable jacket or sheath output modes. Testing theinsulation is vital in determining the safety of cables, reducing the chance ofelectrocution. Meggar testing equipment is therefore a valuable investment forany business in the power services industry.These testing devicesmaximize the dependability of motors, generators, and transformers by utilizingvariable frequency (VLF) output, enabling technicians to locate weak cables.Locating problems in an electrical problem before it becomes out-of-control canminimize maintenance costs and extend the life of the equipment being tested.Like any system, an electrical system needs the TLC that HiPot testing affords.A HiPot tester generallyconsists of three parts: a high-voltage source, a switching matrix used toconnect all points in a circuit, and an amp meter (that measures the current ina circuit). When the high-voltage is applied, an ideally insulated device leaksonly a minimal amount of current, keeping the device safe. When there is abreakdown in the dielectric, a material very resistant to electric flow, however,a dangerous amount of current escapes through the insulating material andpresents a potentially fatal situation for a service technician.Insulation resistance is not a definitemeasure of the voltage an insulation will withstand, but when properlyinterpreted affords a useful indication of the suitability of the winding forcontinued service. It should be remembered that values of insulationresistance, even on identical machines and for identical conditions, may varyover a wide range. Insulators spark-over at the lowest voltage when the cap, orelectrode surrounded by the denser field, is (+). The (+) spark-over voltagegenerally corresponds closely to the maximum a-c.This process is equallyimportant in regulating quality control in the factory. When applied tobrand-new cables, this test provides important information on how much voltagecan be delivered without damaging the product and causing dielectric breakdown,as well as the resistance of the cable insulation.A VLF hipot test is a go/no-go test andis not a diagnostic test, but is one of the best ways to check the AC integrityof an electrical asset to determine a pass or fail result. Similar to offlinepartial discharge testing, the challenge of this test is that the equipmentmust be taken out of service. Instruments for multi-pointHipot, resistance, continuity andcapacitance measurement Multi-point Hipot highvoltage cable testers verify the electrical connections in a cable.Ensuring safety andincreasing the dependability and lifetime of electrical devices is vital to anypower services company's success. With the many benefits of using high-voltagecable testing and the need to ensure safety, many would argue that using aHiPot testing system is just as important as seeing their doctor for acheck-up. Article Tags: High-voltage Cable Testing, High-voltage Cable, Cable Testing
High-voltage,Cable,Testing,Nor