Our quality speaks for us. We are the Manufacturer, Exporter & Supplier of High & Low Tension Insulators like Post, Pin & Disk Insulators Including Transformer Bushings, Shackle, Spool & Guy Strain Insulators

General Power Company Pvt Ltd.

M/s Hindustan Chemicals is approved by
Power Grid Corporation of India Ltd., National Hydro Power Corporation, National Thermal Power Corporation all major Electricity Boards & Utilities.
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Transformer Bushings 1.1 Kv


Transformer Bushings 1.1 Kv, Electric Insulator, Electrical Transformer Bushing Post insulators have a metal bolt down base as opposed to threads. Many early multipart lines are spotted with line post insulators as replacements. Post insulators are also used in substations to insulate high voltage switching gear and transformers. There is no hobby numbering system for post insulators yet.





Standard Particulars
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Transformer Bushings 1.1 Kv
Drawing No. HC - B - 0111 HC - B - 0111 HC - B - 0111 HC - B - 0111 HC - B - 0111
Transformer Rating Kv/Amp. 1.1kv./250 1.1kv./250 1.1kv./250 1.1kv./250 1.1kv./250
Amp. 630 Amp. Amp. Amp. Amp.
Part MM I II I II I II I II I II
Dimentions A MM 50 60 70 85 90 110 104 125 125 150
B (Min) MM 14 20 22 28 32 37 44 51 50 61
C MM 70 30 80 30 85 35 85 35 85 35
D MM 45 50 55 70 55 90 55 104 55 125
E MM 27 26 43 41 53 46 66 64 86 80
F MM 34 30 49 46 67 57 82 71 100 90
Power Frequency Dry KV 12 12 12 12 12
Withstand voltage Wet KV 10 10 10 10 10
Net Weight (approx.) Kg. 0.20 0.10 0.36 0.20 0.85 0.4 1.25 0.6 1.50 0.80
Applicable Specification as per IS : 3347 Part-I & IS : 7421
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Transformer Bushings 17.5, 24 & 36 Kv


Transformer Bushings, Transformer Bushing Insulator Post insulators have a metal bolt down base as opposed to threads. Many early multipart lines are spotted with line post insulators as replacements. Post insulators are also used in substations to insulate high voltage switching gear and transformers. There is no hobby numbering system for post insulators yet.




Standard Particulars
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Transformer Bushings 17.5, 24 & 36 Kv
Drawing No. HC - B - 1201 HC - B - 2401 HC - B - 3601
Transformer Rating   12, 17.5kv/ 24kv/ 36kv/
    250 Amp. 250 Amp. 250 Amp.
Visible Discharge Voltage   KV 9 18 27
Power Frequency on minute Dry KV 45 60 80
Withstand voltage Wet KV 40 65 75
Impulse withstand voltage KVp 95 125 170
Net Weight (approx.) Kg. 3.2 6.0 8.0
Specification as per IS : 3347(Part-III, IV & V ) & IS : 2099
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Pin Insulators
Post Insulator
Disc Insulator
Transformer Bushings
Guy Strain Insulator
L.T. Shakle Insulator
L.T. Spool Insulator
L.T. Pin Insulator
Product Range
Pin Insulators   I   Post Insulator   I   Disc Insulator   I   Transformer Bushings   I    Guy Strain Insulator    I   L.T. Shakle Insulator
   I   L.T. Spool Insulator   I  L.T. Pin Insulator
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