Transformer Cable Termination Box

Mark the cable phasing with red yellow blue tape for phase identification.

Transformer cable termination box.

Dry cable terminations in hv switchgear for service at rated voltages 12 24 and 36kv bs 6435. Filled fully insulated cable boxes provide excellent medium high voltage electrical insulation properties and as clearance distances are. Cable boxes are designed to protect the cable termination. Terminating triplex using cold shrink.

Filled fully insulated boxes these cable boxes are designed for filling with transformer oil or an insulating compound such as guroflex. Lv air partially insulated cable box voltages. The bushing boots insulate the cable lug connection onto the bushing. A standard range of cable box fabrications are offered according to en50464 1 2 3 historically bs2562 bs6435 for use up to 36kv 4 000a.

1979 dec 1979 cable boxes for transformers and reactors bs en 50180 2010 sept 2010. Filled cable end boxes provide excellent electrical insulation to medium high voltage cable terminations usually at 11kv 33kv. Unfilled hv cable boxes are used for dry. Webster wilkinson cable boxes are designed for filling with mv hv transformer oil insulating compounds such as tyco guroflex or prysmian g101 suitable for protecting mv hv cable terminations at 11kv 33kv voltages with xlpe or pilc type insulation.

Cable boxes are available as fully insulated using transformer oils insulating compounds g101 or guroflex. 11kv heat shrink cable termination here a 11kv 3 core pilc paper insulated lead cable is shown terminated into a cable end box the connection is insulated using bushing boots which are cold applied and suitable for both straight or angled connections. Terminations to indoor switchgears electric motors power transformers instrument transformers and other electrical mv and hv mv. 1 kv v 60 kv.

We manufacture and supply cable boxes in two basic forms based on the insulation system used. Summary of cable termination test voltages. Air partially insulated cable boxes avoid the need for additional site insulation however the cable box is often large in order to maintain full air clearances. V 60 kv equipment issues arising for multiple terminations design namely for switchgears and a straight coordination with manufacturer is required.

General problems factors for termination. Heat shrink cable terminations manufactured by sps are tested and qualified as. 1984 jan 1984 unfilled enclosures for dry termination of hv cables for transformers and reactors bs 2562. Here the 11kv triplex cables are shown terminated into a high voltage cable termination box using 3m cold shrink terminations the concertina style bushing boot is cold applied and suitable for both straight or right angled 11kv switchgear connections part code 3m 92ee717 1.