ARCAD Newsletter Issue 2 - Short Circuit Analysis

ARCAD, INC. In This Issue Short Circuit Analysis Accuracy vs Precision About MVA Method Quick Links Testimonials Software Review Contact Us Arc Flash Software Download, install and try out ARCAD software FREE before purchasing the program registration key. Issue #2 - Short Circuit Analysis Dear Lady or Gentleman, We're sending you this emailer to remind you of the ARCAD online solution for short circuit analysis. Typical PC-based commercial software has more interfaces and graphic content, which make them more appealing and expensive. ArcAd's on-line tool is user friendly and performs error propagation analysis - very important but widely ignored issue. For a nominal investment, its worth considering. About ARCAD Online Short Circuit Calculator We offer online tool for short circuit analysis. As we are aware, none of the competition offers similar services online. Advantages: no need for software installation, no risk associated with virus threat system can be accessed, operated, shared from anywhere, anytime, any platform connected to Internet and anybody with granted access access to most recent services and updates routine data backup [ Read More ] Error Propagation Analysis and Why is it Important ? "If it can't be quantified, then it's not engineering, but only a guess" Vern Lindberg   Error in science and engineering does not mean a mistake. It rather means inevitable uncertainty that happens because of empirical measurements and cannot be perfectly corrected. All measurements in practice and even in principle have some error associated with them; no measured quantity can be determined with infinite precision and zero deviation. Without proper error analysis, no valid scientific conclusions can be drawn. In fact, wrong results can happen if error analysis is ignored.    [ Read More ] About MVA Method for Short Circuit Analysis The MVA method is a modification of the Ohmic method where the impedance of a circuit equals the sum of the impedances of components constituting the circuit. Using the admittances, it follows that the reciprocal of the system impedance is the sum of the reciprocals of the admittances of the components. By very definition, the circuit component admittance is the maximum current or KVA at unit voltage which would flow through the circuit or component to a short circuit or fault when supplied from a source of infinite capacity. In practice, the MVA method is used by separating the circuit into components and calculating each component with its own infinite bus.   [ Read More ] For more information call ARCAD, INC. at 416-551-3457 email to sales@arcadvisor.com or visit us at www.arcadvisor.com   Sincerely, - Michael Furtak, C.E.T. President & Founder ARCAD, INC.   Purchase any of the ARCAD Arc Flash Analytic software packages and get one month access to ARCAD Online Short Circuit Calculator for FREE!         Offer Expires: February 10 2012

Newsletter Issue #1 - Arc Flash Awareness

ARCAD, INC. In This Issue Our Products & Offerings What is Arc Flash ? Safety and Liability Quick Links Testimonials Product Review Contact Us Arc Flash Software Download, install and try out ARCAD software FREE before purchasing the program registration key. Issue #1 - Arc Flash Awareness Dear Lady or Gentleman, The ARCAD, INC. Arc Flash Newsletter is a quick update on arc flash issues and the company solutions addressing these issues. This newsletter is free and will bring you up to date on the issues that surround arc flash. Visit us at www.arcadvisor.com for complete product offerings including free online arc flash, short circuit calculators, and PC-based software for arc flash hazard analysis and labelling. About ARCAD, INC. products and services ARCAD, INC. helps maintenance workers, business owners and employers to create safer working environments for individuals who service electrical systems by providing information about the importance of electrical and industrial safety, the dangers associated with an electrical arc flash, and On-Line and PC based software tools for Short Circuit and Arc Flash Hazard Analysis. [ Read More ] What causes an arc flash ? An arc flash happens when electric current flows through air gaps between conductors. Insulation failure and accidents caused by touching a test probe to the wrong surface or slipped tool are the most common causes of an arcing fault. The fault current magnetic fields make conductors to separate producing an arc. In other words, arc flash is caused by uncontrolled conduction of electrical current from phase to ground, phase to neutral, and/or phase to phase accompanied by ionization of the surrounding air. The heat energy and intense light at the point of the arc is called arc flash. [ Read More ] Why should you be concerned about arc flash? The primary reason to be concerned about arc flash is for the safety of the personnel. Short circuits and arc faults are very dangerous and potentially fatal to personnel. Exposure to an arc flash frequently results in a variety of serious injuries such as severe burns, damaged eyesight, ruptured eardrums, collapsed lungs and in some cases - death.   The number two reason to be concerned about arc flash hazards is liability and government regulations. OSHA regulations apply to every worker that may approach or be exposed to energized electrical equipment. Failure for an employer to conform and follow OSHA requirements can lead to employee injuries, fines, penalties, and expensive law suits. [ Read More ] For more information call ARCAD, INC. at 416-551-3457 email to sales@arcadvisor.com or visit us at www.arcadvisor.com   Sincerely, Michael Furtak, C.E.T. ARCAD, INC. Spend $400 or more on ARCAD stocked products and get Arc Flash Analytic 4.1 software FREE   Must mention ESAVINGS promotional code in comments field upon checkout or by email to sales@arcadvisor.com         Offer Expires: January 10 2012

the new DC Arc Flash Analytic software program.

ARCAD, INC. has introduced the new DC Arc Flash Analytic (DCAFA V1.0) software program for arc flash and shock hazard analysis in DC power systems including but not limited to photovoltaics, battery banks, rectifiers and telecommunications equipment.

The program takes system voltage, available short circuit current, gap between electrodes, circuit time constant, electrode material, protective device type and rating or a preset arc duration value, and determines incident energy released by arc flash, hazard risk category at working distance and flash protection boundary.

For systems with variable gap between electrodes, for example when gap is not fixed and distance between electrodes is anticipated to increase by separation of contacts, the program will examine power and energy released by an arc as a function of arcing voltage and current, arc duration, electrode materials and calculate maximum incident energy that could be released by the arc within two (2) seconds time interval. A person exposed to an arc flash will move away quickly if it is physically possible and two seconds is generally accepted as a reasonable maximum time for arc flash calculations.

Among various key capabilities, the DCAFA V1.0 performs analysis using metric or imperial units, saves input configurations and calculation results for future reference or printing, and generates customized arc flash warning labels in electronic formats.

More information about the product is available on this page: http://www.arcadvisor.com/arcflash/dc-arc-flash-calculator.html.