BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Canada/Mountain BEGIN:DAYLIGHT DTSTART:20190310T030000 TZOFFSETFROM:-0700 TZOFFSETTO:-0600 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:MDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20191103T010000 TZOFFSETFROM:-0600 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:MST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20190527T165131Z UID:613EED83-3166-407A-A56B-4BB5B26DEA21 DTSTART;TZID=Canada/Mountain:20190509T130000 DTEND;TZID=Canada/Mountain:20190509T170000 DESCRIPTION:Presented by: Dev Paul\n\nLunch will be provided between 12pm a nd 1pm.\n---------------------------------------------------------------\n \nThe tutorial will provide handouts consisting of technical material on t he design and application of HRG system applied to the Industrial and Comm ercial Power Systems.\n\nThis tutorial is intended for both the experience d engineers much familiar with the HRG design as well as for the younger e ngineers starting their career in the power system design. How such an HRG design enhances safety of maintenance personnel and minimizes equipment h azard will be the main focus once the instructor provides clarifications o n the fundamentals of HRG design.\n\nOne of the most confusing and challen ging technical information of using HRG design is the flow of system charg ing current directions during phase-ground fault condition. This tutorial will go in details of this system charging current and related capacitive component of the ground fault current during fault condition.\n\nGround fa ult current has both the magnitude and the phase angle with respect to the voltage responsible for the ground fault current flow. This appears to be overlooked which caused published literature showing inconsistent power f actor of the ground fault current for the HRG design. Also the word chargi ng current appears to be causing confusion to application engineers who ar gued with the presenter that the charged capacitance between the power sys tem components to ground becomes generators to provide capacitive componen t of fault current during phase-ground fault conditions. Presenter will pr ovide brief and concise clear understanding of this “system charging cur rent” and its flow during normal operation and during phase to ground fa ult condition.\n\nFor clarification purposes\, the tutorial will include t hree-line presentation of a MV power system requiring HRG design to explai n how system charging current flows in the reverse direction in the two un -faulted phase conductors before this current returns to the faulted phase to ground location. Clearly\; this capacitive current flow towards the po wer system neutral in the two un-faulted phases in the reverse direction t o the system charging current flow under normal power system operations. U pon reaching the system neutral this current traverses by the faulted phas e conductor to the phase to ground fault location. At the power system neu tral\, the currents in the two un-faulted phases are added together by pha sor diagram such that it becomes equal to total system charging current. B y Kirkoff current law\, current entering into the neutral (-3ICO) becomes 3ICO. This is how in the fault current phasor diagram\, system charging cu rrent is presented as 3ICO\, whereas capacitive component of the fault cur rent are presented as -3ICO such that the two currents has 180° phase ang le difference.\n\nTutorial will cover the following topics:\n\n- History o f HRG grounding method\n- Development of automatic monitoring devices to i dentify phase-ground fault for faster isolation of faulted section of powe r system for power system reliability.\n- Application of HRG grounding to low-voltage (LV) power systems\n- Application of HRG grounding to medium-v oltage (MV) power systems\n- Clarification of HRG limitations “voltage n ot to exceed 4.16 kV and phase-ground fault current not to exceed 10A (sys tem charging current 7.2A)” included in the IEEE/IAS Std. 142-2007.\n- D amage at the fault location due to resistive component of fault current on ly.\n- Arcing fault\, impact of arc-fault resistance on fault damage. Cond ition of maximum damage at the fault location.\n- Application of voltage p olarized directional current relays suitable for HRG application identifyi ng which phase has fault\, which feeder parallel feeder has fault\, and wh ich parallel feeders are un-faulted by virtue of forward fault direction a nd reverse fault direction sensed by the protection relay.\n- Review of sy stem charging current and capacitive component of fault current\n- Explana tion of “how system charging current direction reverses during phase-gro und fault condition”.\n- Phasor diagram must present leading power facto r of phase-ground fault current and its correct voltage and current phasor diagrams\n- Why do we need to use HRG grounding and not use solidly groun ded or low-resistance grounding methods?\n- Practical examples of power sy stems isolation of phase-ground faults to minimize possibility of ground f ault hazard if the fault is not isolated in the minimum practical time int erval and possibility of phase fault involving other phases bypassing the HRG causing higher fault current and possible damage.\n- Difference betwee n HRG grounding for the mining power systems and the general industrial po wer systems\n- Complete list of IEEE standards and Text books as reference material covering HRG\n- Recent technical papers on HRG grounding by the author\n- Open discussion\n----------------------------------------------- ----------------\n\nRegistration consists of two parts - vTools and PayPal . Follow the "Register Now" link below\, and complete the information. The system will then take you to a PayPal page to enter your payment informat ion. When you have successfully registered and paid\, you will receive 2 c onfirmation emails\, 1 from IEEE and 1 from PayPal. Your registration is n ot complete until your payment has been received\, and you have received b oth confirmation emails.\n\nSpeaker(s): Dev Paul\, \n\nBldg: Fairmont Pall iser Hotel\, 133 9th Avenue SW\, Calgary\, Alberta\, Canada\, T2P 2M3 LOCATION:Bldg: Fairmont Palliser Hotel\, 133 9th Avenue SW\, Calgary\, Albe rta\, Canada\, T2P 2M3 ORGANIZER:dale@innovativepower.ca SEQUENCE:4 SUMMARY:High-Resistance Grounding (HRG) of Industrial and Commercial Power System URL;VALUE=URI:https://events.vtools.ieee.org/m/197631 X-ALT-DESC:Description: <br /><p>Presented by: Dev Paul</p>\n<p>Lunch will be provided between 12pm and 1pm.</p>\n<hr />\n<p>The tutorial will provid e handouts consisting of technical material on the design and application of HRG system applied to the Industrial and Commercial Power Systems.</p>\ n<p>This tutorial is intended for both the experienced engineers much fami liar with the HRG design as well as for the younger engineers starting the ir career in the power system design. How such an HRG design enhances safe ty of maintenance personnel and minimizes equipment hazard will be the mai n focus once the instructor provides clarifications on the fundamentals of HRG design.</p>\n<p>One of the most confusing and challenging technical i nformation of using HRG design is the flow of system charging current dire ctions during phase-ground fault condition. This tutorial will go in detai ls of this system charging current and related capacitive component of the ground fault current during fault condition.</p>\n<p>Ground fault current has both the magnitude and the phase angle with respect to the voltage re sponsible for the ground fault current flow. This appears to be overlooked which caused published literature showing inconsistent power factor of th e ground fault current for the HRG design. Also the word charging current appears to be causing confusion to application engineers who argued with t he presenter that the charged capacitance between the power system compone nts to ground becomes generators to provide capacitive component of fault current during phase-ground fault conditions. Presenter will provide brief and concise clear understanding of this &ldquo\;system charging current&r dquo\; and its flow during normal operation and during phase to ground fau lt condition.</p>\n<p>For clarification purposes\, the tutorial will inclu de three-line presentation of a MV power system requiring HRG design to ex plain how system charging current flows in the reverse direction in the tw o un-faulted phase conductors before this current returns to the faulted p hase to ground location. Clearly\; this capacitive current flow towards th e power system neutral in the two un-faulted phases in the reverse directi on to the system charging current flow under normal power system operation s. Upon reaching the system neutral this current traverses by the faulted phase conductor to the phase to ground fault location. At the power system neutral\, the currents in the two un-faulted phases are added together by phasor diagram such that it becomes equal to total system charging curren t. By Kirkoff current law\, current entering into the neutral (-3ICO) beco mes 3ICO. This is how in the fault current phasor diagram\, system chargin g current is presented as 3ICO\, whereas capacitive component of the fault current are presented as -3ICO such that the two currents has 180&deg\; p hase angle difference.</p>\n<p>Tutorial will cover the following topics:</ p>\n<ol>\n<li>History of HRG grounding method</li>\n<li>Development of aut omatic monitoring devices to identify phase-ground fault for faster isolat ion of faulted section of power system for power system reliability.</li>\ n<li>Application of HRG grounding to low-voltage (LV) power systems</li>\n <li>Application of HRG grounding to medium-voltage (MV) power systems</li> \n<li>Clarification of HRG limitations &ldquo\;voltage not to exceed 4.16 kV and phase-ground fault current not to exceed 10A (system charging curre nt 7.2A)&rdquo\; included in the IEEE/IAS Std. 142-2007.</li>\n<li>Damage at the fault location due to resistive component of fault current only.</l i>\n<li>Arcing fault\, impact of arc-fault resistance on fault damage.&nbs p\;Condition of maximum damage at the fault location.</li>\n<li>Applicatio n of voltage polarized directional current relays suitable for HRG applica tion identifying which phase has fault\, which feeder parallel feeder has fault\, and which parallel feeders are un-faulted by virtue of forward fau lt direction and reverse fault direction sensed by the protection relay.</ li>\n<li>Review of system charging current and capacitive component of fau lt current</li>\n<li>Explanation of &ldquo\;how system charging current di rection reverses during phase-ground fault condition&rdquo\;.</li>\n<li>Ph asor diagram must present leading power factor of phase-ground fault curre nt and its correct voltage and current phasor diagrams</li>\n<li>Why do we need to use HRG grounding and not use solidly grounded or low-resistance grounding methods?</li>\n<li>Practical examples of power systems isolation of phase-ground faults to minimize possibility of ground fault hazard if the fault is not isolated in the minimum practical time interval and possi bility of phase fault involving other phases bypassing the HRG causing hig her fault current and possible damage.</li>\n<li>Difference between HRG gr ounding for the mining power systems and the general industrial power syst ems</li>\n<li>Complete list of IEEE standards and Text books as reference material covering HRG</li>\n<li>Recent technical papers on HRG grounding b y the author</li>\n<li>Open discussion</li>\n</ol>\n<hr />\n<p><em>Registr ation consists of two parts - vTools and PayPal. Follow the "Register Now" link below\, and complete the information. The system will then take you to a PayPal page to enter your payment information. When you have successf ully registered and paid\, you will receive 2 confirmation emails\, 1 from IEEE and 1 from PayPal. <strong>Your registration is not complete until y our payment has been received\, and you have received both confirmation em ails.</strong></em></p> END:VEVENT END:VCALENDAR