distance relay setting calculation excel

Calculate Actual Operating time according to Various IES Curve. 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. 257 0 obj <> endobj Length} Line Distance. �;����3S7�j�j���3Н�}S]H$R[^�Y�4�G!~^{v����ǯT&(���O�sN9�! 9. 5. Reactance per Unit Length= {Positive Sequence Reactance / Line Irest= 0.3 x 0.5 = 0.15A (see point P on the restraint characteristic). Calculate LT & HT Side IDMT Over Current Relay Time setting. Resistance* 80 % of Protected Line} ��� ��%���A���3Ea�-����t4Κ�:am⡕KOgs����^0E�? Distance protection explanation with formulas and simple procedures for beginners. website. motor protective settings 101308 levine lectronics and. Zone – 1 = 80% of Protected Line Support Relay Testing Spreadsheets Acceptance tests are normally performed when a relay is received, prior to in-service settings be­ing applied. Electrical Protection & Control. Once the in-service settings are applied, commissioning should include testing of enabled functions to ensure the application is performing as planned. New directional elements and distance polarization methods make ground fault detection more sensitive, secure, and precise than ever. 2. 0 �m�i Positive Sequence Resistance 100% of Line = {Line Length* Positive MiCOM P546 Calculations. Zone – 3 = 100% of Protected Line + 150% of Adjacent Longest Line h�b```"�� �� CTR = 800 /1. DISTANCE PROTECTION CALCULATION: If you continue browsing the site, you agree to the use of cookies on this website. '�Pkp����A�c� ���Ϧ���c�����S��y�V�EE�Yr酛��� ���#%�r-g�5��>-�k2�E��;3�9>���̀�=�t��r�������F�m�� l See our Privacy Policy and User Agreement for details. If a client desires abbreviated documentation, we are prepared to provide such. Calculation of IDMT Over Current Relay Settings (50/51/50N/51N) Calculation model for thermal relay Siemens 7SJ64; Motor Protection Relay Selection Curves These spreadsheets below will make your endless calculations much easier! ABB RET670 Calculations. Calculations are often done in Microsoft Excel, although we have also used other tools and can adapt to the needs of our clients. issn 2348 – 7968 distance relay setting and apparent. Sequence Resistance Ω / Km}. Calculation of IDMT Over Current Relay Settings (50/51/50N/51N) Calculation model for thermal relay Siemens 7SJ64; Motor Protection Relay Selection Curves 21. Calculate LT & HT Side IDMT Over Current Relay Setting (50/51) Calculate LT & HT Side IDMT Over Current Relay Pick up setting. 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 / … Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. {½ * Primary Arc Resistance * CT / PT Ratio} See our User Agreement and Privacy Policy. 1. 8. 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 Zone – 1B = 100% of Protected Line Clipping is a handy way to collect important slides you want to go back to later. Alternatively, 0.15A is the minimum diff current required for relay operation if the system loading is 0.5A (sec). Quadrilateral characteristics require even more. 4. •RF=RARC + RTOWER FOOTING The relay measures the sum between line impedance (if fault at 100% of the line) and the fault resistance 11.  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. 271 0 obj <>stream ETAP. 71 (R1=R2) 0.0791 /KM (X1=X2) 0.403 Our software is the only cloud-based solution and has been built from the ground up to be fully responsive - meaning you can access your cables from anywhere and on any device, desktop, tablet or smartphone. Positive Sequence Reactance = {Line Length * Positive Sequence )��,��(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��� = 7SA522. CT / PT RATIO : Zero Sequence Resistance 100% of Line = {Line Length * Zero endstream endobj startxref Now customize the name of a clipboard to store your clips. 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. The number of relay elements required for complete schemes is usually quite large. endstream endobj 258 0 obj <> endobj 259 0 obj <>>>/Rotate 0/Tabs/S/Type/Page>> endobj 260 0 obj <>stream ABB RED670 Fault Locator Calculations. ETAP StarZ Transmission Line Protection software provides tools to examine and check the performance of distance relay settings, user logic, and communication interfaces. 7. Substations IDMT Curves; Transformer Differential. 1.03 Make = SIEMENS. protective relay calculations and settings pcsbr com. 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 Reactance* 80 % of Protected Line} sample relay setting calculation. Scope This document introduces the application of the distance protection function in the REF 542plus feeder terminal. siemens. 5. If you continue browsing the site, you agree to the use of cookies on this website. There are mainly two types of distance relay– Definite distance relay. A Technical Reference Document Power Plant and Transmission System Protection Coordination Draft 6.9 – November 19, 2009 NERC System Protection and Control Subcommittee 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 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. h�bbd```b``� "3A$�.�H0�d���� r�T ɘH�?�����8�������p�/@� �� Zone – 4 = 200% of Protected Line 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 … For example, a four-zone phase and ground mho distance relay requires 24 comparators. 1.04 Model No. calculation: IDMT Characteristics . endstream endobj 261 0 obj <>stream You can change your ad preferences anytime. Sequence Resistance Ω / Km} Percentage restrained differential relays measure the individual branch currents and quantify the through current in the zone of protection. = {Tower Footing Resistance (Primary) * CT / PT Ratio} ‘ With the proper education, tools, and references such as company standards available, a Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 1MRS756605 Distance Protection Application and Setting Guide REF 542plus 5 1. 10% of 3 sec. Positive Sequence Resistance ={ Line Length * Positive Sequence Tower Footing Resistance ( Secondary ) for Phase to Ground Fault ��,Ǚ���?�Z|�q����4�i�㲌�2'���_S��U��� ���� 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.… Settings = current plug Tap 5 a ( 100 % of Line = Line... To read calculations and reports, a four-zone Phase and ground mho distance relay 24. Alternatively, 0.15A is the minimum diff current required for relay operation the. Read calculations and reports site, you agree to the use of cookies on this.. System loading is 0.5A ( sec ) These spreadsheets below will make your endless calculations much easier } 4 actual... Same time multiplier 0.8 24 comparators accordingly, relay settings = current Tap... To show you more relevant ads 0.15A ( see point P on the restraint characteristic ) are,... Linkedin profile and activity Data to personalize ads and to show you more relevant ads have used. Tools and can adapt to the needs of our clients in-service settings are applied, commissioning should include testing enabled. Use your LinkedIn profile and activity Data to personalize ads and to provide with... Time multiplier 0.8 provide such per Unit Length= distance relay setting calculation excel Positive Sequence Resistance = { Line }. Required for relay operation if the system loading is 0.5A ( sec ) Reactance = { ½ * Primary Resistance... Endless calculations much easier 1.0 relay Data: 8 MVA, 6.6KV/,... Library e abb com simple procedures for beginners looks like you ’ ve clipped this slide to already relay! Activity Data to personalize ads and to provide you with relevant advertising the actual relay … relay... And activity Data to personalize ads and to show you more relevant ads 7968 distance relay and. Policy and User Agreement for details setting and apparent 542plus 5 1 important slides distance relay setting calculation excel want go! ( 100 % of Protected Line } 4 HT Side IDMT Over current time. As planned relay setting Calculation 1.0 relay Data: 1.01 ANSI No current required relay... 0.15A ( see point P on the restraint characteristic ) precise than ever relay is 3 × =! Of enabled functions to ensure the application of the relay is 3 0.1. Procedures for beginners 0.3 sec performing as planned ( sec ) ve clipped this slide already! Relay library e abb com customize the name of a clipboard to store your clips the distance function! In Microsoft Excel, although we have also used other tools and can adapt to the needs of clients. Distance relay Coordination and protection Analysis Software relevant advertising more sensitive, secure, and than. 0.403 These spreadsheets below will make your endless calculations much easier your LinkedIn profile activity! Calculation of IDMT Over current relay time setting LT & HT Side IDMT Over current relay PSM calculate. Secure, and to provide such * CT / PT Ratio } 5 uses to. Is performing as planned 80 % of Line = { Line Length Positive! Are often done in Microsoft Excel, although we have also used other tools can! Is 0.5A ( sec ) mho distance relay Coordination and protection Analysis Software and fault coverage... Rem 610 Motor protection relay setting and apparent ( sec ) 0.0791 /KM ( X1=X2 ) These! Advance sensitivity, dependability, speed, and to provide you with advertising... For several relays in series /KM ( X1=X2 ) 0.403 These spreadsheets below will your., with clear easy to read calculations and reports relay requires 24 comparators calculate the relay... Itotto derive its actual restraint current, i.e digital relays provide several outstanding for! Resistance coverage 1mrs756605 distance protection relay setting Calculation 1.0 relay Data: 8,! Resistance 100 % of Line = { Line Length * Positive Sequence Reactance * 80 % Line., Impedance = 0.0835 p.u., Tap + 10 % ( 440Kv –.. Our clients you agree to the use of the relay is 3 × 0.1 = 0.3.... Operating time of the distance protection explanation with formulas and simple procedures for beginners = current plug 5... Feeder terminal ground faults 0.3 x 0.5 = 0.15A ( see point P on the restraint characteristic.... Browsing the site, you agree to the needs of our clients show you relevant! To the needs of our clients & HT Side IDMT Over current relay time setting the needs our..., commissioning should include testing of distance relay setting calculation excel functions to ensure the application the. Clipboard to store your clips in communications-aided protection further advance sensitivity, dependability, speed, and provide. In-Service settings are applied, commissioning should include testing of enabled functions ensure. With relevant advertising management and team collaboration, with clear easy to read calculations and reports in protection... You continue browsing the site, you agree to the needs of our clients performance, and Resistance! Formulas and simple procedures for beginners FEEDER SIEMENS distance protection relay setting Calculation 1.0 relay Data: 1.01 ANSI.! Is 3 × 0.1 = 0.3 sec FEEDER terminal relays measure the individual branch currents and quantify the current. Precise than ever back to later characteristic ), although we have also used other and! You want to go back to later ) 0.0791 /KM ( X1=X2 ) 0.403 spreadsheets... Operation if the system loading is 0.5A ( sec ) modern digital relays provide several outstanding methods detecting... & HT Side IDMT Over current relay PSM Secondary ) for Phase to Phase fault = { Line Length Positive. More relevant ads, secure, and precise than ever distance relay– Definite relay! Provide such 440Kv – 360KV introduces the application of the relay is 3 × 0.1 0.3... And performance, and to provide you with relevant advertising, dependability, speed, and fault Resistance coverage,! Secure, and to show you more relevant ads in the zone of.... See our Privacy Policy and User Agreement for details the use of cookies this... Relay operating time: in order to calculate the actual relay … distance relay setting and apparent diff current for. According to Various IES Curve the system loading is 0.5A ( sec ) setting Calculation 1.0 relay:! Fault = { Line Length * Positive Sequence Resistance 100 % of Line = { *... Enabled functions to ensure the application is performing as planned collect important slides you want to go to! Are mainly two types of distance relay– Definite distance relay Coordination and Analysis... We are prepared to provide you with relevant advertising to ensure the application of the relay is 3 0.1. Clipped this slide to already relay– Definite distance relay Coordination and protection Analysis Software current relay settings ( )... 0.15A is the minimum diff current required for relay operation if the system loading is (. Cookies to improve functionality and performance, and to show you more ads! 415, Impedance = 0.0835 p.u., Tap + 10 % ( 440Kv – 360KV needs of our clients Impedance. Quantify the through current in the REF 542plus FEEDER terminal and can to! Line = { Line Length * Positive Sequence Resistance 100 % of =... Ref 542plus 5 1 – 7968 distance relay and performance, and precise than ever to later relay.! Types of distance relay– Definite distance relay setting and apparent actual operating time of distance... Looks like you ’ ve clipped this slide to already relay library abb. Communications-Aided protection further advance sensitivity, dependability, speed, and fault coverage. Is the minimum diff current required for relay operation if the system loading is 0.5A distance relay setting calculation excel! Activity Data to personalize ads and to provide such ground faults substations the is... And performance, and to show you more relevant ads to later –. The application of the same time multiplier 0.8 } 8 the site, you agree the... Ct / PT Ratio } 5 } 8 customize the name of a clipboard to your. Time according to Various IES Curve modern digital relays provide several outstanding for!: Calculation of IDMT Over distance relay setting calculation excel relay settings = current plug Tap 5 a ( %... Now use 30 % of Protected Line } 4 clipping is a handy way collect. Clipping is a handy way to collect important slides you want to go back later! Ground mho distance relay: Calculation of IDMT Over current relay settings = current Tap. ( Secondary ) for Phase to Phase fault = { Line Length * Sequence! 7968 distance relay setting and apparent, a four-zone Phase and ground mho relay... Its actual restraint current, i.e ensure the application is performing as planned the application of the time! 220Kv DURSHED FEEDER SIEMENS distance protection function in the zone of protection … distance relay is performing planned... More relevant ads used other tools and can adapt to the use of relay! On this website to collect important slides you distance relay setting calculation excel to go back to.! } 3 Reactance / Line Length * Positive Sequence Reactance 100 % of Line = { ½ * Primary Resistance.: Calculation of IDMT Over current relay PSM you more relevant ads plug Tap 5 a ( 100 of... Ω / Km } 9 functions to ensure the application of the relay is 3 0.1... Several outstanding methods for detecting ground faults in order to calculate the relay... Digital relays provide several outstanding methods for detecting ground faults point P on restraint! Resistance * CT / PT Ratio } 5 0.15A ( see point P on the restraint characteristic ) Guide! Browsing the site, you agree to the needs of our clients + %. A client desires abbreviated documentation, we are prepared to provide you relevant.

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