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Harmonic Cancellation
Transformers
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DELTA /
STAR Vector Group DYn11 +30 deg Phase Shift K Rating available from K1
upto and including K20
| KVA rating |
upto 750 KVA |
| Impedance |
4% approximately |
| Input voltage |
from 190 volts to 660 volts (other voltages
on request) |
| Output voltage |
from 190 volts to 660 volts (other voltages
on request) |
| Input configuration |
Delta |
| Output configuration |
Star 4 wire neutral point grounded |
| Taps |
available upon request |
| Construction |
dry type, double wound, naturally air
cooled, common core, varnish vacuum impregnated and tropicalised. |
| Windings |
Copper |
| Neutral conductor rating |
200% |
| Frequency |
50 and 60 Hz |
| Insulation class |
H |
| Insulation system |
180 deg |
| Average temperature rise |
125 deg |
| Enclosure type |
sheet steel ventilated enclosure to IP22 |
| Enclosure finish |
Stoving grey (other colours may be available
on request) |
| Flash test |
3000 volts each winding to earth and each
other. |
| Electrical noise attenuation |
dual electrostatic copper shield |
| Ambient temperature |
0 to +40 deg C |
| Storage temperature |
-15 to +50 deg C |
| Operating Humidity |
0 to 90% |
| Construction standards |
BS171 & BSEN60076 pt1 & 2 |
K Factor 20
Model
No. |
kVA |
Approx. Dimensions
(mm)
Height Width Depth |
Approx.
Weight |
Approx.
Fe |
Losses
Cu |
| HCT20-P15 |
15 |
760 |
725 |
425 |
270 |
170 |
1,250 |
| HCT20-P25 |
25 |
880 |
815 |
425 |
420 |
260 |
1,400 |
| HCT20-P50 |
50 |
1,050 |
1,100 |
515 |
730 |
580 |
2,700 |
| HCT20-P75 |
75 |
1,100 |
1,250 |
560 |
900 |
720 |
3,100 |
| HCT20-P100 |
100 |
1,270 |
1,300 |
600 |
1,150 |
870 |
3,600 |
| HCT20-P150 |
150 |
1,400 |
1,300 |
600 |
1,550 |
1,300 |
4,400 |
| HCT20-P250 |
250 |
1,450 |
1,750 |
770 |
2,550 |
2,400 |
7,600 |
| HCT20-P350 |
350 |
1,550 |
1,800 |
850 |
3,000 |
2,700 |
8,800 |
| HCT20-P500 |
500 |
1,650 |
1,950 |
1,000 |
3,800 |
3,500 |
12,000 |
K Factor 13
Model
No. |
kVA |
Approx. Dimensions
(mm)
Height Width Depth |
Approx.
Weight |
Approx.
Fe |
Losses
Cu |
| HCT13-P15 |
15 |
735 |
725 |
425 |
260 |
170 |
1,150 |
| HCT13-P25 |
25 |
800 |
815 |
425 |
375 |
220 |
1,250 |
| HCT13-P50 |
50 |
1,050 |
905 |
425 |
600 |
420 |
2,225 |
| HCT13-P75 |
75 |
1,050 |
1,100 |
515 |
730 |
580 |
2,700 |
| HCT13-P100 |
100 |
1,100 |
1,250 |
550 |
1,000 |
800 |
2,900 |
| HCT13-P150 |
150 |
1,250 |
1,365 |
600 |
1,400 |
1,100 |
4,000 |
| HCT13-P250 |
250 |
1,485 |
1,485 |
700 |
2,100 |
2,200 |
5,000 |
| HCT13-P350 |
350 |
1,550 |
1,500 |
750 |
3,000 |
2,700 |
6,500 |
| HCT13-P500 |
500 |
1,550 |
1,750 |
850 |
3,300 |
2,900 |
10,000 |
K Factor 4
Model
No. |
kVA |
Approx. Dimensions
(mm)
Height Width Depth |
Approx.
Weight |
Approx.
Fe |
Losses
Cu |
| HCT4-P15 |
15 |
735 |
725 |
425 |
260 |
170 |
1,150 |
| HCT4-P25 |
25 |
800 |
785 |
425 |
325 |
200 |
1,200 |
| HCT4-P50 |
50 |
925 |
890 |
425 |
500 |
345 |
2,200 |
| HCT4-P75 |
75 |
1,050 |
1,100 |
515 |
730 |
580 |
2,700 |
| HCT4-P100 |
100 |
1,100 |
1,250 |
560 |
900 |
720 |
3,100 |
| HCT4-P150 |
150 |
1,270 |
1,300 |
600 |
1,150 |
870 |
3,600 |
| HCT4-P250 |
250 |
1,400 |
1,485 |
660 |
2,150 |
1,980 |
5,100 |
| HCT4-P350 |
350 |
1,450 |
1,750 |
770 |
2,550 |
2,400 |
7,600 |
| HCT4-P500 |
500 |
1,550 |
1,800 |
850 |
3,000 |
2,700 |
8,800 |
Typical figures based upon 415V / 415V. All Dimensions in m m Weights in
Kg. Losses in Watts E&OE |
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