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Harmonic Cancellation
Transformers
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DELTA /
INTERCONNECTED STAR + / - 15 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 |
Interconnected 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-E15 |
15 |
950 |
1,050 |
475 |
335 |
215 |
1,400 |
| HCT20-E25 |
25 |
1,000 |
1,150 |
500 |
450 |
325 |
1,765 |
| HCT20-E50 |
50 |
1,175 |
1,250 |
550 |
725 |
500 |
3,000 |
| HCT20-E75 |
75 |
1,250 |
1,500 |
625 |
1,200 |
900 |
3,600 |
| HCT20-E100 |
100 |
1,350 |
1,600 |
700 |
1,400 |
1,150 |
4,000 |
| HCT20-E150 |
150 |
1,400 |
1,700 |
800 |
1,850 |
1,650 |
4,500 |
| HCT20-E250 |
250 |
1,450 |
1,50 |
850 |
2,400 |
2.200 |
8,400 |
| HCT20-E350 |
350 |
1,550 |
1,900 |
950 |
3,000 |
2,500 |
10.800 |
| HCT20-E500 |
500 |
1,650 |
2,000 |
1.000 |
4,500 |
3,200 |
17,000 |
K Factor 13
Model
No. |
kVA |
Approx. Dimensions
(mm)
Height Width Depth |
Approx.
Weight |
Approx.
Fe |
Losses
Cu |
| HCT13-E15 |
15 |
950 |
1,050 |
475 |
320 |
200 |
1,225 |
| HCT13-E25 |
25 |
1,000 |
1,100 |
500 |
425 |
270 |
1,700 |
| HCT13-E50 |
50 |
1,150 |
1,250 |
550 |
700 |
460 |
3,000 |
| HCT13-E75 |
75 |
1,300 |
1,500 |
600 |
925 |
640 |
3,500 |
| HCT13-E100 |
100 |
1,300 |
1,725 |
825 |
1,325 |
1,100 |
3,900 |
| HCT13-E150 |
150 |
1,400 |
1,750 |
850 |
1,550 |
1,500 |
4,400 |
| HCT13-E250 |
250 |
1,500 |
1,850 |
900 |
2,300 |
2,000 |
7,700 |
| HCT13-E350 |
350 |
1,550 |
1,900 |
950 |
2,800 |
2,300 |
8,500 |
| HCT13-E500 |
500 |
1,600 |
1,950 |
1,000 |
3,500 |
3,000 |
12,300 |
K Factor 4
Model
No. |
kVA |
Approx. Dimensions
(mm)
Height Width Depth |
Approx.
Weight |
Approx.
Fe |
Losses
Cu |
| HCT4-E15 |
15 |
950 |
1,050 |
475 |
275 |
175 |
1,100 |
| HCT4-E25 |
25 |
1.000 |
1,100 |
500 |
375 |
230 |
1,600 |
| HCT4-E50 |
50 |
1,150 |
1,300 |
550 |
650 |
340 |
2,350 |
| HCT4-E75 |
75 |
1,250 |
1,400 |
575 |
850 |
550 |
3,000 |
| HCT4-E100 |
100 |
1,300 |
1,550 |
650 |
1,250 |
900 |
3,500 |
| HCT4-E150 |
150 |
1,350 |
1,625 |
750 |
1,500 |
1,100 |
4,250 |
| HCT4-E250 |
250 |
1,400 |
1,700 |
800 |
1,800 |
1,300 |
7,050 |
| HCT4-E350 |
350 |
1,450 |
1,750 |
850 |
2,400 |
2,200 |
7,500 |
| HCT4-E500 |
500 |
1,550 |
1,900 |
950 |
3,000 |
2,500 |
10,800 |
Typical figures based upon 415V / 415V. All Dimensions in m m Weights in
Kg. Losses in Watts E&OE |
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