Trihal cast resin dry type transformers (ENG) - Trinet

TrihalinstallationStandard LV connections from above (1). Trihal with IP31 metal enclosure standard HV and LV connections (figures 1and 2)- the outgoing (or incoming) LV conductorsmust go upwards from the terminals under theenclosure cover.- the LV conductors should never pass betweenthe HV coils and the enclosure.- the outgoing (or incoming) HV conductors canpass above (figure 1) or below (figure 2). HV connection from below- the outgoing (or incoming) HV conductors cancome from below directly to the connectionterminal (figure 2). In this case incomingconductors are passed through the removableflap door located at the bottom on theright HV side.- the HV cables must be fastened inside theenclosure on the HV side panel. Two blankedoff holes with screw nut system are providedfor fitting cables inside the enclosure on theHV side (figure 2) (the fixing system is not suppliedby France Transfo).It is advisable to verify the feasibility of thistype of connection in relation to the sectionand the bending radius of cables and thespace available in the enclosure. HV connection by plug in connector (figure 3)figure 1 - standard HV and LV connectionsfrom abovecable supportLVnHVcable supportHV connections from above with plug-inconnectors (1) (option).Warning:It is necessary to verify conformity with theIP31 protection index after having drilled theinsulation gland plate for HV, LV and otherconnections (thermal protection…)figure 2 - standard HV connection from belowHVHV and LV connections from above.figure 3 - HV connections with plug inconnectors (option)LVHVcable supportcable support(1) by removing dismantled panels of the enclosure.France Transfo13