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Low Partial Discharge Range

 

This range of bushings was designed to comply with market demands for lower discharge bushings. The range utilises a bonded flange arrangement which gives a cleaner electrical profile which is less prone to external discharges. These bushings are especially favoured in the Australian marketplace.

Compliance Standards
BS EN ISO 60137

Available Designs
Designs are available from 12kV to 52kV and from 250A to 4000A.sign

Insulators
Insulator is one-piece ceramic porcelain. Standard porcelain colour is Grey. Brown porcelain is also available – consult us for lead times.

Metal Work
Conductors are electro-tin plated. Fixings and fasters are anti-corrosion plated.

Termination
Most bushings are supplied with screwed terminals. Highcurrent (HC) versions are supplied with plain terminals to enable terminationvia flag connectors. Alternatively conductors can be supplied with flatsmachined on oil side terminal to enable direct bolting of connector.

Fixation
Bushings are supplied fitted with an aluminium flange with fixing holes drilled to accept transformer cover studs. The flange is permanently bonded to the porcelain.

Range Summary

 
 

kV

A max

BIL

AC

Creepage

Prot

mm/kV

CLASS

L12

12

2500

75

28

254

128

21

II

L12HC

12

4000

75

28

393

139

32

IV

L36HC

36

3300

170

70

620

260

17

I

L44

44

1600

250

95

838

280

16

I

L52

52

3150

250

95

1240

640

23

II

L52

52

3150

250

95

1240

640

23

II

Head Office Address

Webster-Wilkinson Ltd
Halesfield 10
Telford
Shropshire
TF7 4QP
UK

 

Z

Accreditations

Emergency out-of-hours numbers

07425 656090

07792 317862