HV / LV Bushings
HV / LV Bushings.
A basic porcelain bushing is a hollow porcelain shape that fits through a hole in a wall or metal case, allowing a conductor to pass through its center, and connect at both ends to other equipment. Bushings of this type are often made of wet-process fired porcelain, which is then glazed. A semi-conducting glaze may be used to assist in equalizing the electrical potential gradient along the length of the bushing.
The inside of the porcelain bushing is often filled with oil to provide additional insulation and bushings of this construction are widely used up to 36 KV where higher partial discharges are permitted.
Transformer Bushing - HV Transformer Bushing
STANDARD PARTICULARS : LT Transformer Bushing
| Product No | AKIPL-12250 | AKIPL-12400 | AKIPL-121000 | AKIPL-122000 |
|---|---|---|---|---|
| Transformer Rating KV/Amp. | 12,17.5kV/250 Amp. | 12,17.5kV/ 400Amp. | 12,17.5kV/ 1000 Amp. | 12,17.5kV/ 2000 Amp. |
| Dimensions DiaDia A mm | 135 | 145 | 165 | 190 |
| Dia B mm | 140 | 150 | 170 | 190 |
| Dia C Max. mm | 111 | 128 | 163 | 183 |
| Dia D Max. mm | 74 | 88 | 108 | 131 |
| Dia E Min. mm | 32 | 39 | 58 | 74 |
| Dia F mm | 70 | 85 | 100 | 125 |
| Dia G mm | 15 ± 1 | 24.5 ± .5 | 32 | 50 |
| S mm | - | - | 12 | 17 |
| T mm | 22 ±1 | 30.5 ±.5 | 46±1 | 62±1 |
| Visible Discharge Voltage KV | 12 | 12 | 12 | 12 |
Transformer Bushing - LV Transformer Bushing
LV Transformer Bushing
| Drawing No | AKIPL/1.1250 | AKIPL/1.1630 | AKIPL/1.11000 | AKIPL/1.12000 | AKIPL/1.13150 |
|---|---|---|---|---|---|
| Transformer Rating KV/Amp. | 1.1/250 | 1.1/630 | 1.1/1000 | 1.1/2000 | 1.1/3150 |
| Part | 1 11 | 1 11 | 1 11 | 1 11 | 1 11 |
| Dimensions A mm | 50 60 | 70 85 | 90 110 | 104 125 | 125 150 |
| B mm | 32 50 | 47 70 | 65 90 | 80 104 | 100 125 |
| C(Min.) mm | 14 20 | 22 28 | 32 37 | 44 51 | 50 61 |
| D mm | 27 26 | 43 4 | 53 46 | 66 64 | 86 80 |
| E(Min.) mm | 45 30 | 55 46 | 55 57 | 55 70 | 55 90 |
| F mm | 70 30 | 80 30 | 85 35 | 85 35 | 85 35 |
| Power Frequency Dry KV | 12 | 12 | 12 | 12 | 12 |
| Withstand Voltage Wet KV | 10 | 10 | 10 | 10 | 10 |
| Net Weight (Approx.) | 0.18 0.12 | 0.36 0.20 | 0.60 0.40 | 0.85 0.60 | 1.2 0.80 |