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Ref Calc Lusail
22
TRIP TIME CALCULATION FOR IDMT RELAY Enter the req setting following below green block t=T*((k/((I/Is)^x)-1)+L) CT Ratio in percentage CT PRIM CURREN 100 Amps 100 % Amps t trip time CT SEC CURRENT 5 Amps 5 % Amps T TMS TMS 1 I injected current with the test kit Trip time for respective curve I Prim I Sec 0.05 0.04 0 to be injected 0.14 0.02 0 200 10 2 Times 1.7784843 10.029027 13.5 26.666667 120 1.7289982 3.8032492 2.1633333 7.0276667 9.5217 966.25618 13.5 1 0 300 15 3 Times 1.1129821 6.3019309 6.75 10 60 1.0927296 2.4322103 0.92375 2.94225 3.6467 97.917235 80 2 0 400 20 4 Times 0.8769154 4.9797561 4.5 5.3333333 40 0.8670155 1.9458389 0.5766667 1.7983333 2.0017 19.519172 120 1 0 500 25 5 Times 0.7519369 4.2797201 3.375 3.3333333 30 0.7475094 1.6883256 0.4279167 1.3080833 1.2967 5.5928552 0.02390 0.02 0.01690 600 30 6 Times 0.6729369 3.8371925 2.7 2.2857143 24 0.6719636 1.5255387 0.35 1.0512857 0.9274143 2.014581 0.0515 0.02 0.114 700 35 7 Times 0.6176972 3.5277424 2.25 1.6666667 20 0.619136 1.4117053 0.3039583 0.8995417 0.7092 0.8497119 5.95 2 0.18 800 40 8 Times 0.5764695 3.2967736 1.9285714 1.2698413 17.142857 0.5797064 1.3267417 0.2744444 0.8022698 0.569319 0.4022653 19.61 2 0.491 900 45 9 Times 0.5442657 3.11635 1.6875 1 15 0.5489055 1.2603716 0.254375 0.736125 0.4742 0.2079968 28.2 2 0.1217 1000 50 10 Times 0.5182518 2.9705986 1.5 0.8080808 13.333333 0.5240236 1.2067559 0.240101 0.6890808 0.4065485 0.1152959 45,900 5.6 0 1100 60 11 Times 0.4966901 2.8497862 1.35 0.6666667 12 0.5033992 1.1623142 0.2295833 0.6544167 0.3567 0.0676105 1200 60 12 Times 0.4784511 2.747587 1.2272727 0.5594406 10.909091 0.4859524 1.1247195 0.2216084 0.6281329 0.3189028 0.0415335 1300 65 13 Times 0.4627665 2.6596972 1.125 0.4761905 10 0.4709483 1.0923886 0.2154167 0.6077262 0.2895571 0.0265296 1400 70 14 Times 0.4490937 2.583078 1.0384615 0.4102564 9.2307692 0.4578683 1.0642037 0.2105128 0.5915641 0.2663154 0.0175185 1500 75 15 Times 0.437038 2.5155175 0.9642857 0.3571429 8.5714286 0.4463348 1.0393511 0.2065625 0.5785446 0.2475929 0.0119042 1600 80 16 Times 0.4263042 2.4553632 0.9 0.3137255 8 0.4360656 1.0172229 0.2033333 0.567902 0.2322882 0.0082936 1700 85 17 Times 0.4166673 2.4013539 0.84375 0.2777778 7.5 0.4268454 0.9973552 0.2006597 0.5590903 0.2196167 0.0059061 1800 90 18 Times 0.4079519 2.3525082 0.7941176 0.247678 7.0588235 0.4185068 0.9793869 0.1984211 0.5517121 0.2090065 0.0042883 1900 95 19 Times 0.4000197 2.3080499 0.75 0.2222222 6.6666667 0.4109171 0.9630326 0.1965278 0.5454722 0.2000333 0.0031681 2000 100 20 Times 0.3927594 2.2673564 0.7105263 0.2005013 6.3157895 0.4039701 0.9480632 0.1949123 0.5401479 0.1923767 0.0023771 2100 105 21 Times 0.3860807 2.2299215 0.675 0.1818182 6 0.3975795 0.9342926 0.1935227 0.5355682 0.1857909 0.0018088 2200 110 22 Times 0.3799094 2.1953294 0.6428571 0.1656315 5.7142857 0.3916741 0.9215676 0.1923188 0.5316004 0.1800851 0.0013939 2300 115 23 Times 0.3741837 2.1632345 0.6136364 0.1515152 5.4545455 0.386195 0.9097613 0.1912689 0.5281402 0.1751091 0.0010868 2400 120 24 Times 0.368852 2.1333474 0.5869565 0.1391304 5.2173913 0.3810929 0.8987671 0.1903478 0.5251043 0.1707435 0.0008563 2500 125 25 Times 0.3638707 2.1054233 0.5625 0.1282051 5 0.3763258 0.888495 0.1895353 0.5224263 0.1668923 0.0006813 I Prim I Sec to be inje Times not in the table type in this gre 177 8.85 1.77 2.1643154 12.189767 17.532468 37.507619 155.84416 2.0978673 4.5980928 2.9696291 9.685055 13.343136 1955.6115 Type of curve Standard K factor α factor L factor Short time inverse Standard inverse Very inverse Extremely inverse Long time inverse Short time inverse Moderately Inverse Long time inverse Very inverse Extremely inverse Rectifier protection Short time inverse AREVA AREVA IEC IEC IEC AREVA C02 ANSI/IEEE C08 ANSI/IEEE ANSI/IEEE RECT Standard inverse IEC Very inverse IEC Extremely inverse IEC Long time inverse AREVA Short time inverse C02 Moderately Inverse ANSI/IEEE Long time inverse C08 Very inverse ANSI/IEEE Extremely inverse ANSI/IEEE Rectifier protection RECT Short time inverse Standard inverse Very inverse Extremely inverse Long time inverse Short time inverse Moderately Inverse Long time inverse Very inverse Extremely inverse Rectifier protection AREVA IEC IEC IEC AREVA C02 ANSI/IEEE C08 ANSI/IEEE ANSI/IEEE RECT
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Transcript of Ref Calc Lusail
TRIP TIME CALCULATION FOR IDMT RELAY
Enter the req setting following below green block
t=T*((k/((I/Is)^x)-1)+L) CT Ratio in percentageCT PRIM CURREN 100 Amps 100 % Amps
t trip time CT SEC CURRENT 5 Amps 5 % AmpsT TMS TMS 1I injected current with the test kit Trip time for respective curve
I Prim I Sec
0.05 0.04 0 to be injected0.14 0.02 0 200 10 2 Times 1.77848432 10.029027 13.5 26.6666667 120 1.72899818 3.80324923 2.16333333 7.02766667 9.5217 966.25618413.5 1 0 300 15 3 Times 1.11298213 6.30193093 6.75 10 60 1.09272964 2.43221031 0.92375 2.94225 3.6467 97.917234980 2 0 400 20 4 Times 0.87691544 4.97975611 4.5 5.33333333 40 0.86701551 1.94583885 0.57666667 1.79833333 2.0017 19.5191715120 1 0 500 25 5 Times 0.75193689 4.27972007 3.375 3.33333333 30 0.74750935 1.6883256 0.42791667 1.30808333 1.2967 5.592855210.02390 0.02 0.01690 600 30 6 Times 0.67293688 3.83719245 2.7 2.28571429 24 0.67196357 1.52553865 0.35 1.05128571 0.92741429 2.014581050.0515 0.02 0.114 700 35 7 Times 0.61769721 3.52774243 2.25 1.66666667 20 0.61913603 1.41170525 0.30395833 0.89954167 0.7092 0.84971195.95 2 0.18 800 40 8 Times 0.57646947 3.29677362 1.92857143 1.26984127 17.1428571 0.57970635 1.32674172 0.27444444 0.80226984 0.56931905 0.4022652919.61 2 0.491 900 45 9 Times 0.54426567 3.11634996 1.6875 1 15 0.54890546 1.26037159 0.254375 0.736125 0.4742 0.2079967728.2 2 0.1217 1000 50 10 Times 0.51825181 2.97059862 1.5 0.80808081 13.3333333 0.52402362 1.20675592 0.24010101 0.68908081 0.40654848 0.1152958845,900 5.6 0 1100 60 11 Times 0.49669008 2.84978623 1.35 0.66666667 12 0.50339922 1.16231422 0.22958333 0.65441667 0.3567 0.06761052
1200 60 12 Times 0.47845109 2.74758702 1.22727273 0.55944056 10.9090909 0.48595236 1.12471951 0.22160839 0.62813287 0.3189028 0.041533461300 65 13 Times 0.46276647 2.65969718 1.125 0.47619048 10 0.4709483 1.09238861 0.21541667 0.60772619 0.28955714 0.026529571400 70 14 Times 0.44909374 2.58307802 1.03846154 0.41025641 9.23076923 0.45786832 1.0642037 0.21051282 0.5915641 0.26631538 0.017518461500 75 15 Times 0.43703797 2.51551746 0.96428571 0.35714286 8.57142857 0.44633477 1.03935107 0.2065625 0.57854464 0.24759286 0.011904241600 80 16 Times 0.4263042 2.45536323 0.9 0.31372549 8 0.43606558 1.0172229 0.20333333 0.56790196 0.23228824 0.008293561700 85 17 Times 0.41666726 2.40135391 0.84375 0.27777778 7.5 0.42684542 0.99735519 0.20065972 0.55909028 0.21961667 0.005906071800 90 18 Times 0.40795194 2.35250818 0.79411765 0.24767802 7.05882353 0.41850675 0.97938694 0.19842105 0.55171207 0.2090065 0.004288321900 95 19 Times 0.40001972 2.3080499 0.75 0.22222222 6.66666667 0.41091709 0.96303264 0.19652778 0.54547222 0.20003333 0.003168052000 100 20 Times 0.39275942 2.26735637 0.71052632 0.20050125 6.31578947 0.40397012 0.94806324 0.19491228 0.54014787 0.19237669 0.002377092100 105 21 Times 0.38608072 2.22992152 0.675 0.18181818 6 0.39757946 0.93429256 0.19352273 0.53556818 0.18579091 0.001808782200 110 22 Times 0.37990936 2.19532937 0.64285714 0.16563147 5.71428571 0.39167409 0.92156759 0.19231884 0.53160041 0.18008509 0.001393952300 115 23 Times 0.37418368 2.16323449 0.61363636 0.15151515 5.45454545 0.38619503 0.90976126 0.19126894 0.52814015 0.17510909 0.001086772400 120 24 Times 0.36885201 2.13334736 0.58695652 0.13913043 5.2173913 0.38109287 0.89876706 0.19034783 0.52510435 0.17074348 0.000856312500 125 25 Times 0.36387067 2.10542329 0.5625 0.12820513 5 0.37632583 0.888495 0.18953526 0.52242628 0.16689231 0.00068132
I Prim I Sec
to be injecte Timesnot in the table type in this green block 177 8.85 1.77 2.16431544 12.1897668 17.5324675 37.5076187 155.844156 2.09786733 4.59809278 2.96962914 9.68505504 13.3431356 1955.61148
Type of curve Standard K factor α factor L factor Short time inverse
Standard inverse
Very inverse
Extremely inverse
Long time inverse
Short time inverse
Moderately Inverse
Long time inverse
Very inverse
Extremely inverse
Rectifier protection
Short time inverse AREVA AREVA IEC IEC IEC AREVA C02 ANSI/IEEE C08 ANSI/IEEE ANSI/IEEE RECT
Standard inverse IEC
Very inverse IEC
Extremely inverse IEC
Long time inverse AREVA
Short time inverse C02
Moderately Inverse ANSI/IEEE
Long time inverse C08
Very inverse ANSI/IEEE
Extremely inverse ANSI/IEEE
Rectifier protection RECT
Short time inverse
Standard inverse
Very inverse
Extremely inverse
Long time inverse
Short time inverse
Moderately Inverse
Long time inverse
Very inverse
Extremely inverse
Rectifier protection
AREVA IEC IEC IEC AREVA C02 ANSI/IEEE C08 ANSI/IEEE ANSI/IEEE RECT
TRIP TIME CALCULATION FOR IDMT RELAY
t=T*((k/((I/Is)^x)-1)+L)curve selected IEC SIT/At trip timeT TMS @ O/C 0.15 @ E/FK relay constant 0.14x(alpha) relay constant 0.02L relay constant 0I injected current with the test kit eg @ 2 times 10 eg @ 2 timesIs O/C current SETTING (I x 100%) 5Is EARTH O/C current SETTING (I x 20%) 1
1.50435405300703
0.150.140.02
0 1.013959 0.013959 10.02903 1.504354 1.5043542
1
O/C
@2X Is 10 1.013959 0.013959 10.02903 1.504354 [email protected] Is 12.5 1.018495 0.018495 7.56971 1.135457 1.135457@3X Is 15 1.022215 0.022215 6.301931 0.94529 0.94529@4X Is 20 1.028114 0.028114 4.979756 0.746963 0.746963@5X Is 25 1.032712 0.032712 4.27972 0.641958 0.641958
E/F
@2X Is 2 1.013959 0.013959 10.02903 1.504354 [email protected] Is 2.5 1.018495 0.018495 7.56971 1.135457 1.135457@3X Is 3 1.022215 0.022215 6.301931 0.94529 0.94529@4X Is 4 1.028114 0.028114 4.979756 0.746963 0.746963@5X Is 5 1.032712 0.032712 4.27972 0.641958 0.641958
TRIP TIME CALCULATION FOR IDMT RELAY
t=T*((k/((I/Is)^x)-1)+L)curve selected IEC EIT/Ct trip timeT TMSK relay constantx(alpha) relay constantL relay constantI injected current with the test kitIs O/C current SETTING (I x 100%)Is EARTH O/C current SETTING (I x 20%)
#REF!
ENTER THE VALUE ON YELLOW HIGH LIGHTS INPUTGENERATED VALUES ARE GREEN HIGH LIGHTS OUTPUT
REF Stability resistance calculationRELAY CURRENT SETTING Iop = 1.5 I OP(Rst + Rr) > Ifs(Rct + 2Rl)VALUE OF STABILITY RESISTOR Rst = 33 49.5441 45.51415825RELAY RESISTANCE Rr = 0.084C.T RESISITANCE Rct = 0.584LEAD RESISTANCE 2Rl = 0.0294
CT RATIO CTR = 500TR CAPACITY (VA) TX (VA) 1600000 Vkp=2 Iop (Rst+Rr+2Rl)TX IMPEDANCE % 6 "=>' 0.06 (ACTUAL) Vkp= 402.26 (test kit result)
(CALCULATED) Vkp= 99.3402 ( as per formula)
Rr @ IopRELAY RESISTANCE
1 6.7 0.1 Rst= 30.2587722 4.22 0.153 2.96 0.24 2.1 0.255 1.897 0.36 1.65 0.357 1.45 0.4
CT RATIO Iprim / Isec = TRANFORMATION RATIO2500 5 500
IF=TX CAPACITY / (1.732 * V *TX IMPEDANCE)
IF 37099.9
Ifs= IF/ CT RATIO 74.1998
ENTER THE VALUE ON YELLOW HIGH LIGHTS INPUTGENERATED VALUES ARE GREEN HIGH LIGHTS OUTPUT
REF Stability resistance calculationRELAY CURRENT SETTING Iop = 0.3VALUE OF STABILITY RESISTOR Rst = 720RELAY RESISTANCE Rr = 1.897C.T RESISITANCE Rct = 5.65LEAD RESISTANCE 2Rl = 0.2
CT RATIO CTR = 2400TR CAPACITY (VA) TX (VA) 500000TX IMPEDANCE % 6.1 "=>'
Rr @ IopRELAY RESISTANCE
1 6.7 52 4.22 0.153 2.96 0.24 2.1 0.255 1.897 0.36 1.65 0.357 1.45 0.4
CT RATIO Iprim / Isec =2400 1
IF=TX CAPACITY / (1.732 * V *TX IMPEDANCE)
IF 10929.6
Ifs= IF/ CT RATIO 4.554001
REF Stability resistance calculationI OP(Rst + Rr) > Ifs(Rct + 2Rl)
216.06 26.6409072
Vkp=2 Iop (Rst+Rr+2Rl)0.061
(CALCULATED) Vkp= 433.2582 ( as per formula)
(ACTUAL) Vkp= 402.26 (test kit result)
Rst= 86.906024
TRANFORMATION RATIO2400
ENTER THE VALUE ON YELLOW HIGH LIGHTS INPUTGENERATED VALUES ARE GREEN HIGH LIGHTS OUTPUT
REF Stability resistance calculationRELAY CURRENT SETTING Iop = 1.75VALUE OF STABILITY RESISTOR setted- Rst = 45RELAY RESISTANCE Rr = 0.264C.T RESISITANCE Rct = 0.9LEAD RESISTANCE 2Rl = 0.15
CT RATIO CTR = 500TR CAPACITY (VA) TX (VA) 1600000TX IMPEDANCE % 6 "=>'
Rr @ IopRELAY RESISTANCE
1 0.495 0.52 0.388 0.753 0.332 14 0.288 1.255 0.274 1.56 0.264 1.757 0.253 2
CT RATIO Iprim / Isec =2500 5
IF=TX CAPACITY / (1.732 * V *TX IMPEDANCE)
IF 35557.64
Ifs= IF/ CT RATIO 71.11528
REF Stability resistance calculationI OP(Rst + Rr) > Ifs(Rct + 2Rl)
79.212 74.67104737
113
1600 Vkp=2 Iop (Rst+Rr+2Rl)0.06
(CALCULATED) Vkp= 158.949 ( as per formula)
(ACTUAL) Vkp= 120 (test kit result)
calculated Rst= 42.40517
TRANFORMATION RATIO500
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