Syemco Tronsformers

PRODUCTION RANGE

Power& Distribufion Tronsformers'l 6 KVAio 2000 lO/Aupto 33 KV STANDARDS

Syemco Tronsformers ore designed ond tesled os per lS:2025, BS- I 71, lEc-76 & tEC-726.

VECTORGROUP

Tronsformers will be connected os per veclor group reference DYn 1 1.

Othervecfor groups con be offered os per specific requiremenls.

TERMINATARRANGEMENT

H.V Bore Bushings or Coble Box, L.V Bore Bushing or Coble Box Disconnecling.

TEMPERATURE RISE

Syemco Tronsformers ore designed for o moximum temperoiure rise of 401500 C of oill windi n g. Lower lemperolu re rise co n be offered on requesl.

CORE

The core is constructed from low loss, cold rolled, groin orienled, onneoled lominqtions

of

electricol sheei sleel conforming

to the

lotest inlernotionol stondords. Speciol frome is buih in-house form clomping lhe core to reduce ihe mognelic noise os well os moking the whole structure rigid ond robusl.

WINDINGS

Coils ore wound with electrolytic high conductivity poper covered of synlhelic enomelled copper conductors. Cooling ducls ore provided lo keep the hof spol temperoture os low os possible. Coils ore dried in eleclric ovens. Rigid connection suppod ond coil clomping is provided to ensure high short circuil slrenglh.

INSUTATION

Precompressed boord PARMALI boord ond JAPANEESE insulolion poper of best quolity is used.

TAPPINGS

A. OFF CIRCUITTAP CHANGING SWITCH

Toppi ngs ^f rom + 5% lo ^- 5% tor HV voriolion or os per cuslomer's req uiremenl.

B. ON LOADTAPCHANGER

16 steps OLTC for HV voriotion lrom ^-l5o/oto -15% in sleps oI 1.25%o or os per specific requiremenls. OLTC for remote/ oufo/ porollel operolion con olso be offered.

olt

Oil

is tested for resistivily, dielectric ond ocidic chorocterislic conforming

lo

lS- 335. Before topping up oil ^is filtered lhroughly

TANKS

The lonks ore mode of M.S. steel ploies/ sheefs wiih odequote brocing & sliffness.

Tonks ore pressure lesfed to withstond ony type of inside or oulside ^pressure, oll the externol surfoce ore given o primory cool of zinc chromole, red oxide ond two finishing coots of grey point. The inner surfoces ore given o coot of heot ond oil resisling point.

QUATITY CONTROL AND ROUTI NE'IEST

All Syemco tronsformers undergo rigorous quolity control check ond ore routine lesled os per lS in our fully equipped loboroiory. Any specific test required by the cuslomer con olso be orronged.

ACCESSORIES ON REQUEST

I

^LV

ond

^HV

coble

boxes.

I Winding femperoture indicotor.

I ^Buchholz

^reloy.

I ^{Mognetic oil level gouge.}

I Morsholing box.

I Disconnecting chomber.

I ^Oil temperoture indieofor with electricol contoCii.

I

^Pressure

^{relief volve.}