27.5-35kv and Below Full Insulation Oil Immersed Inductive Distribution Instrument Voltage Transformer

Scope
♦lt is outdoor,single phase and oil immersed inductive voltage transfommer,which
is used for metering and relay protection of 20-35kV,50 or 6OHz system
Standards
♦EC61869-1;IEC61869-3
♦GB20840.1;GB20840.3
Service conditions
♦Ambient temperature:-50~+45 C
♦Altitude:<2000m (f above 2000m,the product will be customized according
to user's request)
♦Pollution level:II,III,IV
Design features
♦It is monopole and all-insulation voltage transformer,which the primary winding
has only one grade,all primary and secondary winding are surrounded on"H"
structure iron core's columns. The insulation consists ofhigh voltage cable paper,
telephone paper and cardboard etc,it wil be immersed in transfommer oil after
desiccating under vacuum. It has advantages of stable and reliable performance for
insulation,rich operated experience,long service life and convenient maintenance.
♦Perfect fluidity perfornance of transformer oil is good for heat dissipation,it also
has self restoring capacity for the failure of partial discharge caused by air bubble
and dust.
♦lt ean be provided two secondary measuring winding according to user's request
Hermetically sealed stainless steel metallic bellows is installed on the top,which
can protect the transformer oil and insulation paper from moisture and extend the
life time,also there is aoillevelgauge on the belows for observing change of oil
volume.
♦There is a multi function oil drain valve on the base,which makes it more
convenient for oil sampling,draining and refilling.
All adopted insulation parts are environmental protection materials
Secondary terminal board is made ofepoxy casting,the seal performance is more
reliable.
♦The base uses spray painting or hot galvanizing,which gives a high degree of
corrosion resistance.
Fasteners and nameplate are stainless steel.