31 0 78KB
DIFF CHARACTERISTIC Idiff EndSlope1[p.u] EndSlope2[p.u] Slope1[%] Slope2[%]
Nom values of current 0.3 0.6 3 33.3 66.6
0.5784435857 For any angle of injection between 0
p.u. of nominal curren sec inj current values 3.3677 2.20948 2.651376
CALCULATION OF DIFFERENTIAL CURRENTS HV I1 I2 I3
Magnitude [A] Angle 2.2094801154 2.2094801154 2.2094801154
LV I1 I2 I3
Magnitude [A] Angle 2.6513761385 2.6513761385 2.6513761385
IDL1 IDL2 IDL3
Absolute secondary value 1.3119555091 0.6559777546 0.6559777546
52.89 -120 120 2 150 30 270
Angle in Rad 0.9231046414 -2.0943951024 2.0943951024 Angle in Rad 2.617993878 0.5235987756 4.7123889804
Re 1.333084 -1.10474 -1.10474 Io -0.876397 Re -2.296159 2.296159 -4.87E-16 Io 0
Abs Ref (HV) value 524.782203649 262.3911018245 262.3911018245
CURRENT CONTRIBUTIONS to fundamental frequency differential current HV IA IB IC
Re 650.086309784 -325.043154892 -325.043154892
Im 469.8701842553 -1000.321455764 530.4512715087
Total 802.1160765255 1051.8060978165 622.118641408
3ph FAULTS Angle of inj in Rph Angle of inj in Yph Angle of inj in Bph phi inj 30.3867953792 -89.6132046208 150.3867953792
-233.7057 116.8529 116.8529
DIFF 3PH 463.2448614425 1PH FAULTS Wanted BIAS [p.u.] DIFF acc to CHARACT 4 1.7652 Minimum Iinj 3.2915026221 Injected current [p.u.] 3.3677 phi1
73.4690304802
phi2
51.6822411819
3.5632627609 4.696842 463.2448614425 A t1 t2
PHI
46.2971711528
1.4322 1.7652 Function of inj angle Iinj -217.31172966
1.0992
VALID p
3.3610455311
262.23186208
a
69814.12
q
-206.14510336
b
13350.66
r
-32.381705245
c
-26269.75
Nom values of current
HV HV, sec CT 262.431940541 0.656079851
LV
LV, sec CT 1574.5916432444 0.787295822
ngle of injection between 0 and 90 degrees, this should be lower then 11
Im 1.762013191 -1.91346591 1.913465909 1.762013191 Im 1.325688069 1.325688069 -2.65137614 0
469.8701843 -234.935092 -234.935092
Primary values 883.792046159 883.792046159 883.792046159 262.391101824
Re 533.2334416 -441.8960231 -441.8960231 LV to HV Re 5302.75227695 -0.382693182 5302.75227695 0.382693182 5302.75227695 -8.1175E-17 0
Im Percentage of rated current 704.8052763829 3.3677 -765.386363636 3.3677 765.3863636364 3.3677 Im
Normalized to Primary side [p [A] 0.2209480115 3.3677 1060.550455 0.2209480115 3.3677 1060.550455 -0.4418960231 3.3677 1060.550455
-765.3863636 441.8960230795 765.3863636 441.8960230795 -1.6235E-13 -883.792046159
IBIAS 1051.8060978165 A LV IA IB IC
4.0079195225 p.u. Re Im -883.79204616 0 441.89602308 765.3863636 441.89602308 -765.3863636
Total 883.792046159 883.792046159 883.792046159 883.792046159
a
b c 28 48.8110087146 21.06032011
root 4.8742916988
0.958666079 0.784584232
DIFF VALUE for 1PH faults 1.3440882 235.1544497226 1.2216441 1.3440882
3.645751311
3PH 1PH root
DIFF as function of Iinj and angle of injection 2.9995331508 p.u. 787.1733054735 A 524.782203649 A 1.9996887672 p.u.
86684.7006815
t1
0.7164407031
phi1
45.7613947586
t2
-0.5252091997
phi2
-31.6823275432
IBIAS = f(Iinj,phi) 4.5 4
IBIAS
3.5 3 2.5 2 1.5 1 0.5 0 0
10
20
30
40
50 60 phi(degrees)
0.5 0 0
10
20
30
40
50 60 phi(degrees)
phi Sn [MVA] UHV [kV] HVCTprim [A] HVCTsec [A] ULV [kV] LVCTprim [A] LVCTsec [A] nu
30 66 400 1 11 2000 1 6
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
IBIAS (Iinj, phi) 3.3677 3.384596 3.401346 3.417948 3.434399 3.450696 3.466836 3.482816 3.498634 3.514287 3.529773 3.54509 3.560234 3.575203 3.589995 3.604608 3.61904 3.633288 3.64735 3.661223 3.674907 3.688399 3.701696 3.714797 3.727701 3.740404 3.752906 3.765205 3.777298 3.789185 3.800862 3.81233 3.823586 3.834629 3.845457 3.856068 3.866462 3.876637
38 3.886591 39 40 41 42 43 44 45 46 47
3.896324 3.905833 3.915118 3.924177 3.93301 3.941614 3.94999 3.958135 3.966049
0
48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90
IBIAS = f(Iinj,phi)
50 60 phi(degrees)
70
80
90
100
3.973731 3.98118 3.988394 3.995374 4.002117 4.008624 4.014892 4.020923 4.026714 4.032265 4.037575 4.042645 4.047472 4.052056 4.056398 4.060495 4.064349 4.067958 4.071322 4.07444 4.077312 4.079938 4.082318 4.08445 4.086336 4.087974 4.089364 4.090507 4.091402 4.092048 4.092447 4.092597 4.0925 4.092154 4.09156 4.090718 4.089629 4.088291 4.086706 4.084873 4.082793 4.080466 4.077893
0
50 60 phi(degrees)
70
80
90
100