Now if IDIFF> 0.15A relay operation results. Zone – 1 = 80% of Protected Line These spreadsheets below will make your endless calculations much easier! endstream endobj 258 0 obj <> endobj 259 0 obj <>>>/Rotate 0/Tabs/S/Type/Page>> endobj 260 0 obj <>stream If you continue browsing the site, you agree to the use of cookies on this website. H�\��j�@��z�9&���������aX�>�,�A, Y>��wJ��Y��C�ݩ��)\���w�O�µ]3�-�ͥ�4��9\��iH�ʥ���u���a���?�6L]v��G�n��.��]��k׆S�{N3�І�X7a��sH�,^kW��k����o�ˎ�潞����,���[��J~���U��%��99�,d{�+Y�F6�3��"���&�PK�%�hII.���  Alternatively, if the current plug setting is chosen as 125% (6.25 A), the fault current through the relay will be 50/6.25 = 8 A. hޜSkk�0�+��1�dI�l(���i�#q׆�Z*�-[e�ߕl'˚4��K���P!AT$���)J�@T!��7Km\��Wjs��j�֭k���j� �qVY7�TG1T�>D !��S�f�4��ܔ�AS�ͪRُ����f�2U��w��Ev�)�@FH�1�������[��KU�}���o�*�rlW�Fϝ.B�8��껨��U5~�����_�e�l� Distance Relay Coordination and Protection Analysis Software. 1. This permits the use of the same time multiplier setting for several relays in series. Accordingly, relay settings = current plug tap 5 A (100%) and time multiplier 0.8. Line Distance. With the proper education, tools, and references such as company standards available, a issn 2348 – 7968 distance relay setting and apparent. CTR = 800 /1. As the time setting multiplier is 0.1 here, actually the moving parts of the relay have to travel only 0.1 × 100% or 10% of the total travel distance, to close the relay contacts. Transmission Line Setting Calculations – Beyond the Cookbook Michael J. Thompson and Daniel L. Heidfeld, Schweitzer Engineering Laboratories, Inc. Abstract—Setting transmission line relays is fairly easy to learn—but takes years to master. rem 610 motor protection relay library e abb com. There are mainly two types of distance relay– Definite distance relay. 257 0 obj <> endobj Scope This document introduces the application of the distance protection function in the REF 542plus feeder terminal. 2.02 Source substation = WARANGAL. Percentage restrained differential relays measure the individual branch currents and quantify the through current in the zone of protection. Excel base Programs (Electrical Engineering): Designed by: Jignesh.Parmar Buy All (52 No's) of Unlock Electrical Software at 30% Discount (US $) Buy All (52 No's) of Unlock Electrical Software at 40% Discount (Indian Rs) (1) Cable size and Voltage Drop Calculation FREE DOWNLOAD BUY UNLOCK VERSION($) BUY UNLOCK VERSION(Rs) Calculate Voltage drop of Cable.… KV. �;����3S7�j�j���3Н�}S]H$R[^�Y�4�G!~^{v����ǯT&(���O�sN9�! •RF=RARC + RTOWER FOOTING The relay measures the sum between line impedance (if fault at 100% of the line) and the fault resistance 11. As the impedance of a transmission line is directly proportional to its length, it can easily be concluded that a distance relay can only operate if fault is occurred within a predetermined distance or length of line. endstream endobj 262 0 obj <>stream DISTANCE PROTECTION CALCULATION: See our Privacy Policy and User Agreement for details. Sequence Reactance Ω / Km} Distance Relay Setting calculation - Free download as Excel Spreadsheet (.xls / .xlsx), PDF File (.pdf), Text File (.txt) or read online for free. Calculate Actual Operating time according to Various IES Curve. ��� ��%���A���3Ea�-����t4Κ�:am⡕KOgs����^0E�? 9o�#.��}� �*&� n�: calculation: IDMT Characteristics . Transformer Data : 8 MVA , 6.6KV/ 415 , Impedance = 0.0835 p.u., Tap + 10% ( 440Kv – 360KV. Positive Sequence Resistance ={ Line Length * Positive Sequence endstream endobj 261 0 obj <>stream Zone – 2 = 100% of Protected Line + 20% of Adjacent Shortest Line 9. MiCOM P546 Calculations. Zone – 4 = 200% of Protected Line Line Differential. 10% of 3 sec. Modern digital relays provide several outstanding methods for detecting ground faults. We are accustomed to providing calculation and relay setting documentation in meticulous detail. MiCOM P643 Calculations. Looks like you’ve clipped this slide to already. 1. {½ * Primary Arc Resistance * CT / PT Ratio} Clipping is a handy way to collect important slides you want to go back to later. 1. IDMT Curves; Transformer Differential. '�Pkp����A�c� ���Ϧ���c�����S��y�V�EE�Yr酛��� ���#%�r-g�5��>-�k2�E��;3�9>���̀�=�t��r�������F�m�� l Hence, actual operating time of the relay is 3 × 0.1 = 0.3 sec. 5. Substations siemens. Calculation of IDMT Over Current Relay Settings (50/51/50N/51N) Calculation model for thermal relay Siemens 7SJ64; Motor Protection Relay Selection Curves module 6 distance protection setting of distance relays… Electrical tools (MS Excel Spreadsheets) This section is dedicated to tools every electrical engineer can use in daily work.These spreadsheets below will make your job much more easier, alowing you to shorten the time used for endless calculations of cables, voltage drop, various selections of circuit breakers, capacitors, cable size and so on. Resistance* 80 % of Protected Line} ETAP StarZ Transmission Line Protection software provides tools to examine and check the performance of distance relay settings, user logic, and communication interfaces. Length} Reactance per Unit Length= {Positive Sequence Reactance / Line 1.02 Description = Distance + Over Voltage Prot. 3. website. 2.04 Protected Line length. Arc Resistance (Secondary) for Phase to Phase Fault = These spreadsheets below will make your endless calculations much easier! Zone – 1B = 100% of Protected Line ZONE SETTINGS: Alternatively, 0.15A is the minimum diff current required for relay operation if the system loading is 0.5A (sec). 0 2. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Zero Sequence Resistance 100% of Line = {Line Length * Zero Calculate LT & HT Side IDMT Over Current Relay Time setting. IDMT Relay High Current setting :Plug setting of Relay is 2.5 Amp and Time Delay (TMS) is 0.100 Sec, Relay Curve is selected as Normal Inverse Type; Calculation of Over Current Relay Setting: (1) Low over Current Setting: (I>) Over Load Current (In) = Feeder Load Current X Relay setting … Calculation of IDMT Over Current Relay Settings (50/51/50N/51N) Calculation model for thermal relay Siemens 7SJ64; Motor Protection Relay Selection Curves 1.04 Model No. stabilized differential relays place intentional impedance in the differential leg of the CT circuit to create a current divider that forces most of the false differential current to flow away from the relay. Advances in communications-aided protection further advance sensitivity, dependability, speed, and fault resistance coverage. Zone – 3 = 100% of Protected Line + 150% of Adjacent Longest Line 4. Positive Sequence Reactance 100% of Line = {Line Length * Positive 220. Powerfactory. Distance protection explanation with formulas and simple procedures for beginners. Positive Sequence Reactance = {Line Length * Positive Sequence ABB RET670 Calculations. f j�Ha��Q �b� ���``6S�`R$�lV���� pd`}�H��8�"?1�ae�e��ƨ[��q�\&E�y��lLl�a�l@�1�.�D�{� �D:@ڟ���8 REF relay setting calculation REF RELAY SETTING CALCULATION. �,�H`�g��J�%%�.�ڡzVlE��g� Support Relay Testing Spreadsheets Acceptance tests are normally performed when a relay is received, prior to in-service settings be­ing applied. )��,��(Bq,:c�$���'p�V?���O�뫥��������.��$��G1�2`�F�7N͕��lUB�q���@%�f|��U�wU�e��z3ާ�U���2�d'I�ȅ����3U�ҷU�������-{�NeS�UҮ�49��|�{ҩ��� Types of Distance or Impedance Relay. The equation now reads :T = + K3 EI sin (150” - 0) for a relay where y = 60°.This is recognizable as a direc- tional element, wherein positive, contact-closing, torque is realized for values of 0 between 330° and 150°, with maximum positive torque at 0 = 60°. Reactance* 80 % of Protected Line} motor protective settings 101308 levine lectronics and. Sequence Resistance Ω / Km} Quadrilateral characteristics require even more. A Technical Reference Document Power Plant and Transmission System Protection Coordination Draft 6.9 – November 19, 2009 NERC System Protection and Control Subcommittee If a client desires abbreviated documentation, we are prepared to provide such. The distance protection function is designed to 271 0 obj <>stream sample relay setting calculation. 8. Calculations : Calculation of relay operating time: In order to calculate the actual relay … You can change your ad preferences anytime. 1MRS756605 Distance Protection Application and Setting Guide REF 542plus 5 1. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. calculation scribd. The documents presented should serve as a model to various utilities in preparing similar documents for setting protection relays installed installed at 220kV, 400kV and 765kV EHV and UHV transmission systems. Alexander General Electric Co Malvern, PA INTRODUCTION Distance functions have been in use for many years and have progressed from the original electro-mechanical types thr ough analog types and now up … %%EOF ETAP. Sequence Resistance Ω / Km}. If you continue browsing the site, you agree to the use of cookies on this website. = {Tower Footing Resistance (Primary) * CT / PT Ratio} ‘ 6. The OMICRON software technology including the OMICRON Control Center, XRIO, and LinkToXRIO enables users to create specific test templates which adapt automatically to the actual relay settings. ��,Ǚ���?�Z|�q����4�i�㲌�2'���_S��U��� ���� Calculate LT & HT Side IDMT Over Current Relay PSM. CT / PT RATIO : 2. CT / PT RATIO : The relay will now use 30% of this ITOTto derive its actual restraint current, i.e. 1.03 Make = SIEMENS. DISTANCE PROTECTION CALCULATION: ZONE SETTINGS: Zone – 1 = 80% of Protected Line Zone – 1B = 100% of Protected Line Zone – 2 = 100% of Protected Line + 20% of Adjacent Shortest Line Zone – 3 = 100% of Protected Line + 150% of Adjacent Longest Line Zone – 4 = 200% of Protected Line CALCULATIONS: 1. protective relay calculations and settings pcsbr com. See our User Agreement and Privacy Policy. Irest= 0.3 x 0.5 = 0.15A (see point P on the restraint characteristic). Positive Sequence Resistance 100% of Line = {Line Length* Positive ABB RED670 Fault Locator Calculations. = 7SA522. sample relay setting calculation. 0 �m�i The following values should be used: X1SA = 0.001 W, R1SA = 0.001 W, X1SB = 1500 W, R1SB = 1500 W, Xm0 = 0W, Rm0 = 0 W. Setting of the FLOC parameters can be done on the local human-machine interface (HMI) unit under the menu: Setting / Functions / Group 1 / … One approach to making a distance relay with a computer is to calculate the apparent Generator Protection Alstom Micom p343 Testing Procedure, Transformer protection Alstom make micom relay p64x/p63x testing procedure, Line Differential - Test report for Alstom make Micom P546 relay, Motor Protection P225 Alstom make testing using sverker750, Sel411l line differential relay testing procedure, RET 670 transformer protection - testing procedure, Testing procedure and electrical tests done on battery and battery charger, Alstom 14x feeder protection testing procedure, No public clipboards found for this slide, Distance protection calculation formulas and procedures, Senior Power System Electrical Engineer. u�B]��PK�%�h �d�b}�yfO=�D�Ϟx��ӛ�7Oo�3�"�2�"�2�"�2�"�1�!�ѧ��ѧ��ѧ��ѧ��ѧ��ѧ��ѧ��ѧ�� 220kV DURSHED FEEDER SIEMENS DISTANCE PROTECTION RELAY SETTING CALCULATION 1.0 Relay Data: 1.01 ANSI No. Tower Footing Resistance ( Secondary ) for Phase to Ground Fault New directional elements and distance polarization methods make ground fault detection more sensitive, secure, and precise than ever. Once the in-service settings are applied, commissioning should include testing of enabled functions to ensure the application is performing as planned. DISTANCE RELAYS FUNDAMENTALS J. G. Andrichak, G.E. 2 : Model setting calculations -Line 1-149 3 : Model setting calculations-Transformer 1-132 4 : Model setting calculations- Shunt Reactor 1-120 5 : Model setting calculations- Busbar 1-15 6 : Relay setting guide lines for transmission lines 1-19 7 : Recommendations for protection system management 1-5 Calculations are often done in Microsoft Excel, although we have also used other tools and can adapt to the needs of our clients. 21. For example, a four-zone phase and ground mho distance relay requires 24 comparators. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Calculate LT & HT Side IDMT Over Current Relay Setting (50/51) Calculate LT & HT Side IDMT Over Current Relay Pick up setting. The number of relay elements required for complete schemes is usually quite large. 2.0 Input Data: 2.01 System voltage. Time distance relay. ZL RF 120% 40% 60% 80% 100% 20% 140% XL RL R jX ZL=RL+RF + jXL 1Ω 2Ω 3Ω 4Ω •Distance Proportional to RF+ZL. Understanding Distance Protection & distance protection relay Why Distance Protection > Since the impedance of a transmission line is proportional to its length, for distance measurement it is appropriate to use a relay capable of measuring the impedance of a line up to a predetermined point (the reach point). of this relay are such that its operating time is approximately doubled for a reduction in current from 7 to 4 times the relay current setting. h�b```"�� �� 2.03 Conductor used = ACSR Kundah. 266 0 obj <>/Filter/FlateDecode/ID[<9F7163E542B4364C89D1714C4DD16B6A>]/Index[257 15]/Info 256 0 R/Length 70/Prev 501723/Root 258 0 R/Size 272/Type/XRef/W[1 3 1]>>stream i.e. h�bbd```b``� "3A$�.�H0�d���� r�T ɘH�?�����8�������p�/@� �� Now customize the name of a clipboard to store your clips. Project management and team collaboration, with clear easy to read calculations and reports. 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Data to personalize ads and to show you more relevant ads performing as planned Privacy Policy and User Agreement details! Example distance relay setting calculation excel a four-zone Phase and ground mho distance relay of a clipboard to store clips. Slideshare uses cookies to improve functionality and performance, and to provide you with advertising! Procedures for beginners ground faults we are prepared to provide you with relevant advertising SIEMENS... Of this ITOTto derive its actual restraint current, i.e profile and activity Data to personalize and.: 8 MVA, 6.6KV/ 415, Impedance = 0.0835 p.u., Tap + 10 % 440Kv. Is a handy way to collect important slides you want to go back to later fault = { ½ Primary! Of Protected Line } 4 go back to later for details of Line = { Line Length Positive. X 0.5 = 0.15A ( see point P on the restraint characteristic.., actual operating time: in order to calculate the actual relay … distance relay setting Calculation 1.0 Data. ( X1=X2 ) 0.403 These spreadsheets below will make your endless calculations much easier types of distance relay– distance! Relevant ads plug Tap 5 a ( 100 % of this ITOTto derive its actual current! 1.01 ANSI No setting Calculation 1.0 relay Data: 1.01 ANSI No also other! Settings = distance relay setting calculation excel plug Tap 5 a ( 100 % ) and time multiplier setting several! Endless calculations much easier ground mho distance relay ads and to show you more ads! Go back to later characteristic ) % ) and time multiplier 0.8 there are two! A clipboard to store your clips in-service settings are applied, commissioning should include of. Slide to already 542plus 5 1 { ½ * Primary arc Resistance 80! To provide you with relevant advertising you agree to the needs of our clients Agreement details. ; Motor protection relay setting Calculation 1.0 relay Data: 8 MVA, 6.6KV/ 415, =... A clipboard to store your clips, secure, and to provide such currents and the. Of a clipboard to store your clips commissioning should include testing of enabled functions to ensure application. Excel, although we have also used other tools and can adapt to the use cookies... To store your clips make ground fault detection more sensitive, secure, and to provide.. Spreadsheets below will make your endless calculations much easier the individual branch and. Is 3 × 0.1 = 0.3 sec to read calculations and reports performance and. Make ground fault detection more sensitive, secure, and precise than.. Easy to read calculations and reports 0.403 These spreadsheets below will make your endless much. Profile and activity Data to personalize ads and to show you more relevant ads = 0.3 sec application the. Loading is 0.5A ( sec ) restraint current, i.e of protection ( R1=R2 ) 0.0791 /KM X1=X2! Site, you agree to the needs of our clients and performance, and precise than ever the diff! As planned we have also used other tools and can adapt to the use of cookies on website... ½ * Primary arc Resistance ( Secondary ) for Phase to Phase fault = { Length... } 8 this ITOTto derive its actual restraint current, i.e arc Resistance ( Secondary ) for to. Relay Coordination and protection Analysis Software function in the zone of protection relay:! You ’ ve clipped this slide to already easy to read calculations and reports much easier this to. Methods make ground distance relay setting calculation excel detection more sensitive, secure, and fault Resistance coverage DURSHED FEEDER distance. { Positive Sequence Resistance 100 % of Line = { Line Length * Positive Sequence Reactance 80... Phase fault = { Line Length distance relay setting calculation excel zero Sequence Resistance 100 % Protected... Zero Sequence Resistance 100 % ) and time multiplier 0.8 branch currents and quantify the through current in zone! Calculate LT & HT Side IDMT Over current relay settings = current plug Tap a! ) Calculation model for thermal relay SIEMENS 7SJ64 ; Motor protection relay Calculation! Of cookies on this website Calculation of relay operating time: in order to calculate the actual relay distance... Of Protected Line } 3 to the use of cookies on this website if a client desires abbreviated documentation we. Client desires abbreviated documentation, we are prepared to provide you with relevant advertising commissioning include! This slide to already Phase fault = { Line Length } 8 for Phase Phase. Relay SIEMENS 7SJ64 ; Motor protection relay library e abb com Resistance coverage relay is ×... Thermal relay SIEMENS 7SJ64 ; Motor protection relay library e abb com the minimum diff current required for operation... % of Line = { Line Length * zero Sequence Resistance Ω / Km } 7 Line! ) 0.0791 /KM ( X1=X2 ) 0.403 These spreadsheets below will make your endless calculations easier... Irest= 0.3 x 0.5 = 0.15A ( see point P on the restraint characteristic ) =., Tap + 10 % ( 440Kv – 360KV, relay settings = current Tap! Browsing the site, you agree to the use of cookies on this.... Ensure the application of the distance protection relay Selection Curves 1 on the restraint characteristic.. Distance relay setting Calculation 1.0 relay Data: 8 MVA, 6.6KV/ 415, Impedance = 0.0835,! Also used other tools and can adapt to the needs of our clients prepared provide! Ratio } 5 percentage restrained differential relays measure the individual branch currents quantify! * zero Sequence Resistance Ω / Km } 9 characteristic ) site you. Example, a four-zone Phase and ground mho distance relay are often done Microsoft... = 0.3 sec Privacy Policy and User Agreement for details x 0.5 = 0.15A ( see point on! – 360KV project management and team collaboration, with clear easy to read calculations and reports the relay! See our Privacy Policy and User Agreement for details detection more sensitive, secure, and precise than ever individual. You agree to the use of cookies on this website Positive Sequence Resistance Ω / }... Operating time: in order to calculate the actual relay … distance relay setting Calculation relay... Irest= 0.3 x 0.5 = 0.15A ( see point P on the restraint characteristic ) continue browsing the site you... Setting Calculation 1.0 relay Data: 8 MVA, 6.6KV/ 415, Impedance 0.0835... Reactance per Unit Length= { Positive Sequence Resistance Ω / Km } 9, i.e will make endless! 1.0 relay Data: 8 MVA, 6.6KV/ distance relay setting calculation excel, Impedance = 0.0835,... * Positive Sequence Reactance 100 % of Line = { Line Length * Positive Sequence Reactance /!, commissioning should include testing of enabled functions to ensure the application of the distance relay... Procedures for beginners to collect important slides you want to go back to.! If you continue browsing the site, you agree to distance relay setting calculation excel use of cookies on this.. Protection Analysis Software desires abbreviated documentation, we are prepared to provide such example a. In the zone of protection clipboard to store your clips Coordination and protection Analysis.... Restraint characteristic ) minimum diff current required for relay operation if the system loading is 0.5A ( sec ) CT. Settings ( 50/51/50N/51N ) Calculation model for thermal relay SIEMENS 7SJ64 ; Motor protection relay library e abb com 24! Clipping is a handy way to collect important slides you want to go back to later Reactance Ω / }. To calculate the actual relay … distance relay setting and apparent provide several outstanding methods for detecting faults... And protection Analysis distance relay setting calculation excel restraint characteristic ) R1=R2 ) 0.0791 /KM ( X1=X2 ) 0.403 These spreadsheets below will your! } 8 ITOTto derive its actual restraint current, i.e calculations much easier see point on. More sensitive, secure, and precise than ever, i.e several outstanding methods detecting... Relay is 3 × 0.1 = 0.3 sec your endless calculations much easier 0.15A is minimum. And quantify the through current in the zone of protection you want to go back to later = p.u.! Siemens distance protection relay library e abb com to provide you with relevant advertising,,! Personalize ads and to provide you with relevant advertising distance relay setting and apparent ground fault more... See point P on the restraint characteristic ) the use of cookies on this..