LT/HT Power & Control Cables

Table - 17
TECHNICAL DETAILS FOR HAVELLS 1.1 KV
FOUR CORE, ALUMINIUM/COPPER CONDUCTOR, XLPE INSULATED, UN-ARMOURED CABLES
Ref Specification : IS 7098 Part-1
Physical Parameters Cable Code : A2XY/2XY
Minimum No. of Strand in
Size Nominal Minimum Inner Approx. Weight of Cable
Conductor Nominal Outer Approx. Overall
(Cross Sectional Insulation Sheath
Sheath Thickness Dia of Cable With Al'm Cond. With Cu Cond.
Area) Aluminium Copper Thickness Thickness
A2XY 2XY
Sqmm No's No's mm mm mm mm Kg/Km Kg/Km
4 1/3 1/3 0.70 0.30 1.80 14 230 340
6 1/3 1/3 0.70 0.30 1.80 15 290 430
10 1/7 6 0.70 0.30 1.80 17 360 630
16 6 6 0.70 0.30 1.80 19 450 800
25 6 6 0.90 0.30 2.00 22 600 1200
35 6 6 0.90 0.30 2.00 24 750 1600
50 6 6 1.00 0.30 2.00 27 950 2000
70 12 12 1.10 0.40 2.20 31 1300 2900
95 15 15 1.10 0.40 2.20 35 1700 3900
120 15 18 1.20 0.50 2.40 39 2100 4900
150 15 18 1.40 0.50 2.60 43 2550 6000
185 30 30 1.60 0.50 2.80 48 3150 7450
240 30 34 1.70 0.60 3.00 54 4000 9700
300 30 34 1.80 0.70 3.20 61 4950 12050
400 53 53 2.00 0.70 3.60 68 6250 15350
500 53 53 2.20 0.70 3.80 75 7800 19450
630 53 53 2.40 0.70 4.00 84 9800 24850
* Tabulated Approx. Weight of Cable are only for the purpose of guideline for transportation, loading & unloading purpose.
** Refer page no. 55 for normal delivery lengths & packing details.
Cross-sectional view
Conductor Material : Aluminium / Copper as per Class-2 of IS: 8130
Shape of Conductor : For Al'm Cond. - 4, 6 & 10 Sq.mm Solid / Stranded Non Compacted Circular,
16 Sq.mm and above - Stranded Compacted Shaped
For Cu Cond. - 4 & 6 Sq.mm Solid / Stranded Non Compacted Circular, 10 Sq.mm - Stranded Compacted Circular,
16 Sq.mm and above - Stranded Compacted Shaped
Insulation Material : XLPE (Cross linked polyethylene); Colour : Red, Yellow & Blue
Inner Sheath : PVC Type ST-2 as per IS: 5831; Options : FR Type/FRLS Type
Outer Sheath : PVC Type ST-2 as per IS: 5831; Options : FR Type/FRLS Type
Colour of Outer Sheath : Black or any other Colour as per requirement

Electrical Parameters
Max. Conductor Approx. Conductor Short Circuit Current
Size Reactance Normal Current Rating
D.C.Resistance at 20 °C A.C.Resistance at 90 °C Rating for 1 Second
(Cross of Cable Capacitance of
Sectional at 50 Hz Cable (Approx.) For Aluminium Conductor For Copper Conductor Duration
Aluminium Copper Aluminium Copper
Area) (Approx.) Ground Duct Air Ground Duct Air Aluminium Copper
Sqmm Ohm/Km Ohm/Km Ohm/Km Ohm/Km Ohm/Km μF/Km Amps Amps Amps Amps Amps Amps K.amps K.amps
4 7.41 4.61 9.48 5.90 0.098 0.11 34 28 30 44 37 39 0.376 0.572
6 4.61 3.08 5.90 3.94 0.090 0.13 43 37 40 55 47 50 0.564 0.858
10 3.08 1.83 3.94 2.34 0.084 0.16 57 48 53 74 61 67 0.940 1.43
16 1.91 1.15 2.44 1.47 0.080 0.18 78 61 70 94 78 85 1.50 2.29
25 1.20 0.727 1.54 0.931 0.080 0.20 95 80 99 120 100 125 2.35 3.58
35 0.868 0.524 1.11 0.671 0.080 0.23 116 94 117 145 120 155 3.29 5.01
50 0.641 0.387 0.820 0.495 0.078 0.24 140 110 140 170 145 190 4.70 7.15
70 0.443 0.268 0.567 0.343 0.077 0.26 170 140 176 210 175 235 6.58 10.01
95 0.320 0.193 0.411 0.248 0.074 0.29 200 165 221 250 210 290 8.93 13.59
120 0.253 0.153 0.325 0.197 0.072 0.29 225 185 258 285 240 330 11.28 17.16
150 0.206 0.1240 0.265 0.159 0.072 0.29 255 210 294 315 270 375 14.10 21.45
185 0.164 0.0991 0.211 0.127 0.072 0.29 285 235 339 355 300 435 17.39 26.46
240 0.125 0.0754 0.162 0.0976 0.072 0.31 325 270 402 410 350 510 22.56 34.32
300 0.100 0.0601 0.130 0.0778 0.071 0.33 370 305 461 460 390 590 28.20 42.90
400 0.0778 0.0470 0.1023 0.0618 0.070 0.33 435 350 542 520 440 670 37.60 57.20
500 0.0605 0.0366 0.0808 0.0489 0.070 0.34 481 405 624 580 480 750 47.00 71.50
630 0.0469 0.0283 0.0648 0.0391 0.069 0.36 537 470 723 680 575 875 59.22 90.09
Note: Normal current ratings are given in standard conditions (as given in page no 52, 53), if site conditions are different, current rating should be multiplied by
rating factor as given in page no. 52 - 54

28
 LT/HT Power & Control Cables

Table - 22
TECHNICAL DETAILS FOR HAVELLS 1.1 KV
FOUR CORE, ALUMINIUM/COPPER CONDUCTOR, XLPE INSULATED, ARMOURED CABLES
Ref Specification : IS 7098 Part-1
Physical Parameters Cable Code : A2XFY/2XFY, A2XWY/2XWY
Flat Strip Armoured (A2XFY/2XFY) Round Wire Armoured (A2XWY/2XWY)
Size Nominal Minimum Nominal Minimum Approx. Approx. Weight of Cable Approx. Weight of Cable
Minimum No. of Nominal Minimum Approx.
(Cross Strand in Conductor Insulation Inner Armour Outer Overall With Al'm With Cu Dia of Outer Overall With Al'm With Cu
Sectional Thickness Sheath Strip Sheath Dia of Cond. Cond. Armor Sheath Dia of Cond. Cond.
Area) Aluminium Copper Thickness Dimension Thickness Cable A2XFY 2XFY Wire Thickness Cable A2XWY 2XWY
Sqmm No's No's mm mm mm mm mm Kg/Km Kg/Km mm mm mm Kg/Km Kg/Km
4 1/3 1/3 0.70 0.30 N/A N/A N/A N/A N/A 1.40 1.24 16 440 560
6 1/3 1/3 0.70 0.30 N/A N/A N/A N/A N/A 1.40 1.24 17 520 670
10 1/7 6 0.70 0.30 N/A N/A N/A N/A N/A 1.40 1.40 19 620 900
16 6 6 0.70 0.30 4 X 0.80 1.40 20 650 1000 1.60 1.40 21 850 1200
25 6 6 0.90 0.30 4 X 0.80 1.40 22 850 1450 1.60 1.40 24 1100 1700
35 6 6 0.90 0.30 4 X 0.80 1.40 25 1000 1850 1.60 1.40 26 1300 2100
50 6 6 1.00 0.30 4 X 0.80 1.56 28 1300 2400 1.60 1.56 29 1550 2700
70 12 12 1.10 0.40 4 X 0.80 1.56 32 1650 3250 2.00 1.56 34 2200 3800
95 15 15 1.10 0.40 4 X 0.80 1.56 35 2000 4250 2.00 1.72 38 2700 4900
120 15 18 1.20 0.50 4 X 0.80 1.72 39 2500 5300 2.00 1.88 42 3200 6000
150 15 18 1.40 0.50 4 X 0.80 1.88 43 2950 6400 2.50 2.04 47 4100 7550
185 30 30 1.60 0.50 4 X 0.80 2.04 48 3600 7950 2.50 2.20 52 4850 9150
240 30 34 1.70 0.60 4 X 0.80 2.20 54 4500 10200 2.50 2.36 58 5950 11600
300 30 34 1.80 0.70 4 X 0.80 2.36 61 5500 12600 3.15 2.52 66 7750 14850
400 53 53 2.00 0.70 4 X 0.80 2.68 68 6850 15900 3.15 2.84 73 9350 18400
500 53 53 2.20 0.70 4 X 0.80 2.84 75 8500 20100 4.00 3.00 82 12400 24000
630 53 53 2.40 0.70 4 X 0.80 3.00 84 10550 25650 4.00 3.00 91 14750 30000
* Tabulated Approx. Weight of Cable are only for the purpose of guideline for transportation, loading & unloading purpose.
** Refer page no. 55 for normal delivery lengths & packing details.

Cross-sectional view
Conductor Material : Aluminium / Copper as per Class-2 of IS: 8130
Shape of Conductor : For Al'm Cond. - 4, 6 & 10 Sq.mm Solid / Stranded Non Compacted Circular,
16 Sq.mm and above - Stranded Compacted Shaped
For Cu Cond. - 4 & 6 Sq.mm Solid / Stranded Non Compacted Circular, 10 Sq.mm - Stranded Compacted Circular,
16 Sq.mm and above - Stranded Compacted Shaped
Insulation Material : XLPE (Cross linked polyethylene); Colour : Red,Yellow, Blue & Black
Inner Sheath : PVC Type ST-2 as per IS: 5831; Options : FR Type/FRLS Type
Armouring : Single Layer of Galvanized Steel Round Wire / Flat Strip
Outer Sheath : PVC Type ST-2 as per IS: 5831; Options : FR Type/FRLS Type
Colour of Outer Sheath : Black or any other Colour as per requirement

Electrical Parameters
Max. Conductor Approx. Conductor Short Circuit Current
Size Reactance Normal Current Rating
D.C.Resistance at 20 °C A.C.Resistance at 90 °C Rating for 1 Second
(Cross of Cable Capacitance of
Sectional at 50 Hz Cable (Approx.) For Aluminium Conductor For Copper Conductor Duration
Aluminium Copper Aluminium Copper
Area) (Approx.) Ground Duct Air Ground Duct Air Aluminium Copper
Sqmm Ohm/Km Ohm/Km Ohm/Km Ohm/Km Ohm/Km μF/Km Amps Amps Amps Amps Amps Amps K.amps K.amps
4 7.41 4.61 9.48 5.90 0.098 0.11 34 28 30 44 37 39 0.376 0.572
6 4.61 3.08 5.90 3.94 0.090 0.13 43 37 40 55 47 50 0.564 0.858
10 3.08 1.83 3.94 2.34 0.084 0.16 57 48 53 74 61 67 0.940 1.43
16 1.91 1.15 2.44 1.47 0.080 0.18 78 61 70 94 78 85 1.50 2.29
25 1.20 0.727 1.54 0.931 0.080 0.20 95 80 99 120 100 125 2.35 3.58
35 0.868 0.524 1.11 0.671 0.080 0.23 116 94 117 145 120 155 3.29 5.01
50 0.641 0.387 0.820 0.495 0.078 0.24 140 110 140 170 145 190 4.70 7.15
70 0.443 0.268 0.567 0.343 0.077 0.26 170 140 176 210 175 235 6.58 10.01
95 0.320 0.193 0.411 0.248 0.074 0.29 200 165 221 250 210 290 8.93 13.59
120 0.253 0.153 0.325 0.197 0.072 0.29 225 185 258 285 240 330 11.28 17.16
150 0.206 0.1240 0.265 0.159 0.072 0.29 255 210 294 315 270 375 14.10 21.45
185 0.164 0.0991 0.211 0.127 0.072 0.29 285 235 339 355 300 435 17.39 26.46
240 0.125 0.0754 0.162 0.0976 0.072 0.31 325 270 402 410 350 510 22.56 34.32
300 0.100 0.0601 0.130 0.0778 0.071 0.33 370 305 460 460 390 590 28.20 42.90
400 0.0778 0.0470 0.1023 0.0618 0.070 0.33 435 350 542 520 440 670 37.60 57.20
500 0.0605 0.0366 0.0808 0.0489 0.070 0.34 481 405 624 580 480 750 47.00 71.50
630 0.0469 0.0283 0.0648 0.0391 0.069 0.36 537 470 723 680 575 875 59.22 90.09
Note: Normal current ratings are given in standard conditions (as given in page no 52, 53), if site conditions are different, current rating should be multiplied by
rating factor as given in page no. 52 - 54

33
BASIC ASSUMPTION FOR CURRENT RATINGS & RATING FACTORS
SCOPE
The current ratings of cables as indicated in various tables have been calculated on certain assumed conditions.
In actual practice these conditions may be different. Therefore to determine the actual current ratings as per installation conditions, the tabulated
ratings shall be multiplied with appropriate factors
a) Basic assumption for current ratings
I) Maximum permissible temperature - 90°C for XLPE insulation, 70°C for general purpose PVC, 85C for HR PVC
ii) Ground/Duct temperature - 30°C
iii) Ambient temperature - 40°C
iv) Thermal resistivity of soil - 150°C cm/W
v) Thermal resistivity of Dielectric 650°C cm/W for PVC, 350°C cm/W for XLPE
vi) Single core cables installed in one circuit in following arrangement Voltage Grade Depth of Laying
OR
vi) Multicore cables installed in single circuit 1.1KV cables 750mm
3.3KV to 11KV 900mm

b) Rating Factors More than 11KV 1050mm

i) Rating factors related to variation in ambient air temperature
Air Temperature in Deg. 20° 25° 30° 35° 40° 45° 50° 55°
Normal PVC 1.32 1.25 1.16 1.09 1.00 0.90 0.80 0.80
Rating factors HR PVC 1.22 1.17 1.12 1.06 1.00 0.94 0.87 0.80
XLPE 1.20 1.16 1.11 1.06 1.00 0.95 0..88 0.82

ii) Rating factors related to variation in ground temperature

Air Temperature in Deg. 15° 20° 25° 30° 35° 40° 45° 50°
Normal PVC 1.17 1.12 1.06 1.00 0.94 0.87 0.79 0.71
Rating factors HR PVC 1.13 1.09 1.04 1.00 0.95 0.90 0.85 0.80
XLPE 1.12 1.08 1.04 1.00 0.96 0.91 0..87 0.82

iii) Rating factors related to variation in ground thermal resistivity of soil for 3 single core cables laid direct in ground. (Average value)

Thermal Res. in oC.Cm/W 100 120 150 200 250 300

Rating factors 1.20 1.10 1.00 0.90 0.81 0.74

iv) Rating factors related to variation in ground thermal resistivity of soil for multi core cables laid direct in ground. (Average value)
Thermal Res. in oC.Cm/W 100 120 150 200 250 300
Rating factors 1.16 1.08 1.00 0.90 0.82 0.76

v) Rating factors related to variation in depth of laying for 1.1kv cables

1. For cross-sectional area of conductor < 25sqmm
Depth of laying (cm) > 75 90 105 120 150 180 & Above
Rating factors 1.00 0.99 0.98 0.97 0.96 0.95

2. For cross-sectional area of conductor 25 to 300sqmm

Depth of laying (cm) > 75 90 105 120 150 180 & Above
Rating factors 1.00 0.98 0.97 0.96 0.94 0.93

3. For cross-sectional area of conductor above 300sqmm

Depth of laying (cm) > 75 90 105 120 150 180 & Above
Rating factors 1.00 0.97 0.96 0.95 0.92 0.91

vi) Rating factors related to variation in depth of laying for 3.3kv to 11kv cables

Depth of laying (cm) > 75 90 105 120 150 180 & Above
Rating factors - 1.00 0.99 0.98 0.96 0.95

vii) Rating factors related to variation in depth of laying for above 11kv cables

Depth of laying (cm) > 75 90 105 120 150 180 & Above
Rating factors - - 1.00 0.99 0.98 0.96

52
BASIC ASSUMPTION FOR CURRENT RATINGS & RATING FACTORS
Group Rating Factors
1. Cable laid direct in Ground
No of cables/
Multicore cables in horizontal formation Single cables in horizontal formation
circuits in groups
Touching S=15CM S=30CM S=45CM S=60CM Touching S=15CM S=30CM S=45CM S=60CM
2 0.80 0.84 0.87 0.90 0.91 0.80 0.85 0.90 0.92 0.95
3 0.68 0.74 0.79 0.83 0.86 0.70 0.78 0.85 0.88 0.91
4 0.62 0.69 0.75 0.80 0.83 0.64 0.73 0.81 0.86 0.89
5 0.58 0.65 0.72 0.77 0.80 0.59 0.70 0.79 0.84 0.88
6 0.55 0.62 0.69 0.75 0.78 0.55 0.67 0.77 0.83 0.87
7 0.52 0.59 0.67 0.73 0.77 0.53 0.65 0.76 0.82 0.86
8 0.50 0.57 0.66 0.72 0.75 0.51 0.64 0.76 0.82 0.86
9 0.48 0.55 0.65 0.71 0.75 0.49 0.63 0.74 0.81 0.85
10 0.46 0.54 0.64 0.70 0.74 0.48 0.63 0.74 0.81 0.85
11 0.45 0.53 0.63 0.70 0.74 0.47 0.62 0.73 0.80 0.84
12 0.44 0.52 0.62 0.69 0.73 0.46 0.61 0.73 0.80 0.84

S = axial spacing of cable

No. of cables/
No. of Tier Multicore cables in Tier formation
circuits in groups
Touching S=15CM S=30CM S=45CM S=60CM
2 1 0.80 0.84 0.87 0.90 0.91
3 1 0.68 0.74 0.79 0.83 0.86
4 2 0.60 0.66 0.73 0.77 0.79
5 2 0.55 0.61 0.68 0.71 0.73
6 2 0.51 0.57 0.63 0.67 0.69
7 3 0.48 0.54 0.59 0.63 0.64
8 3 0.46 0.51 0.56 0.60 0.61
9 3 0.44 0.48 0.53 0.57 0.58
10 4 0.42 0.47 0.52 0.55 0.56
11 4 0.41 0.46 0.50 0.54 0.55
12 4 0.40 0.45 0.49 0.53 0.54
2. Cable laid direct in open racks in air
(i) Multicore Cables in open racks in air

No. of racks

No. of racks No. of cables per rack No. of cables per rack
1 2 3 6 9 1 2 3 6 9
1 1.00 0.98 0.96 0.93 0.92 1.00 0.84 0.80 0.75 0.73
2 1.00 0.95 0.93 0.90 0.89 1.00 0.80 0.76 0.71 0.69
3 1.00 0.94 0.92 0.89 0.88 1.00 0.78 0.74 0.70 0.68
6 1.00 0.93 0.90 0.87 0.86 1.00 0.76 0.72 0.65 0.66

(ii) Single Core Cables In open racks In air

No. of Racks No. of Circuit Racks (3 single cores) per rack

1 2 6
1 1 0.98 0.96
2 1 0.95 0.93
3 1 0.94 0.92
4 1 0.93 0.9

53
S = axial spacing of cable
No. of cables/
No. of Tier Multicore cables in Tier formation
circuits in groups
Touching S=15CM S=30CM S=45CM S=60CM
2 1 0.80 0.84 0.87 0.90 0.91
3 1 0.68 0.74 0.79 0.83 0.86
4 2 0.60 0.66 0.73 0.77 0.79
5 2 0.55 0.61 0.68 0.71 0.73
6 2 0.51 0.57 0.63 0.67 0.69
7 3 0.48 0.54 0.59 0.63 0.64
8 3 0.46 0.51 0.56 0.6 0.61
9 3 0.44 0.48 0.53 0.57 0.58
10 4 0.42 0.47 0.52 0.55 0.56
11 4 0.41 0.46 0.50 0.54 0.55
12 4 0.40 0.45 0.49 0.53 0.54
Multicore cables (spacing of cable S/core cables in trefoil touching formation
No. of cables/ Multicore cable (Touching)
equal to dia meter of cable No of spacing between circuits equal to twice the
circuits in groups No of cables in racks
cables in racks diameter of cable) No of cables in racks
1 2 3 4 1 2 3 4 1 2 3 4
1 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
2 0.84 0.80 0.78 0.76 0.98 0.95 0.94 0.93 0.98 0.95 0.94 0.93
3 0.80 0.76 0.74 0.72 0.96 0.93 0.92 0.90 0.96 0.93 0.92 0.90
4 0.76 0.71 0.70 0.68 0.93 0.90 0.89 0.87 — — — —

Estimated Voltage Drops * Selection criteria of MV/HV

in PVC/XLPE Aluminium Cables For cable size for primary distribution
A.C. System SCOPE
The conductor size in the cables for any installation is also governed by its ability to carry short circuit current of system.
(Voltage drop - Volts/Km/Amps)
For L.V. distribution cable may be selected on the basis of continuous load current. But in case of MV/HV distribution it is
Nominal always safer to select the cable on the basis of ability of conductor to carry expected short circuit current. Short circuit
area of current rating of cable should in line with short circuit capacity of damping apparatus such as circuit breakers, Transformers
P.V.C. Cable XLPE Cable
conductor & reactor etc. beside its capacity to carry desired load current. Short circuit ratings of cables each size are given in relevant
(sq. mm) tables & have been calculated on the basis of IEC-949 & IEC-986 & on the following assumption
Single Three Single Three
a) Temperature of conductor just prior to short circuit
Phase Phase Phase System
i) With XLPE insulation - 90 Deg. C ii) With PVC insulation - 70 Deg. C
1.5 43.44 37.62 46.34 40.13
b) Maximum permissible conductor temperature during short circuit
2.5 29.04 25.15 30.98 26.83
i) With XLPE insulation - 250 Deg. C ii) With PVC insulation - 160 Deg. C
4 17.78 15.40 18.98 16.44
6 11.06 9.58 11.80 10.22 c) Volumetric specific heat of the conductor
i) With Aluminium conductor - 2.5 x 10-3J/Deg. C/MM3
10 7.40 6.41 7.88 6.82
ii) With Copper conductor - 3.45 x 10-3J/Deg. C/MM3
16 4.58 3.97 4.90 4.24 d) Reciprocal of temperature co-efficient of resistance at 9 Deg. C
25 2.89 2.50 3.08 2.67 i) With Aluminium conductor - 228 ii) With Copper conductor - 234.5
35 2.10 1.80 2.23 1.94 Short circuit current rating at different duration may be calculated as
50 1.55 1.30 1.65 1.44 Ish (for t duration) = Ish (for 1Sec.) Ish for 1 Sec. Duration is given in relevant tables in KA
70 1.10 0.94 1.15 1.00 t t = Time duration required tobe calculated of short circuit in Sec.
95 0.79 0.68 0.83 0.70 SELECTION CRITERIA OF H.V./MV CABLES FOR PRIMARY DISTRIBUTION
120 0.63 0.55 0.66 0.56 REQUIRED DATAS FOR EXAMPLE
150 0.52 0.46 0.55 0.48 1) Nominal System voltage at H.T. Side 11KV
185 0.42 0.37 0.44 0.40 2) Short circuit level for H.T. system 25KA
240 0.34 0.30 0.35 0.30 3) Fault withstand time for H.T. CBs 0.5 SEC
300 0.28 0.26 0.30 0.26 4) Formula for calculating H.T. cable size
With Aluiminium cond./XLPE insulated cable = Ish X— t = 25 X—0.5
400 0.24 0.22 0.24 0.22
0.094 0.094
500 0.23 0.20 0.23 0.20 = 188
630 0.20 0.18 0.21 0.18
800 0.19 - 0.20 - Hence nearest higher size 240sqmm is required
1000 0.18 - 0.18 - With Copper cond./XLPE insulated cable = Ish X— t = 25 X —0.5
**Above voltage drops (volts/km/amps) shall be multiplied 0.143 0.143
with rated current & length of Cable in K.M. to calculate = 124
total voltage drop in particular length and size of cables. Hence nearest higher size 150 sqmm is required

ELECTRICAL FORMULAS FOR CALCULATING A.C. LOAD CURRENT

for Single phase (A.C.) for Three phase (A.C.)
Load current in Amps when KVA is given KVA X1000 KVA X1000
V 1.732 X V
for Single phase (A.C.) for Three phase (A.C.)
Load current in Amps when Kilo Watt is given KW X1000 KW X1000
VXpf 1.732 X V X pf
for Single phase (A.C.) for Three phase (A.C.)
Load current in Amps when H.P. is given H.P. X746 H.P. X746
V X %EFf X pf 1.732 X V X %Eff X pf
V = Nominal system voltage in Volts, pf = Power factor, KVA = Kilo Volts Ampere, H.P. = Horse Power

54