≤100kVA Range
HET 90kVA/30kV,15kV Exciter Transformer
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HET 90kVA/30kV,15kV Exciter Transformer

Lead time: 45 days

Mode: HET 90kVA/30kV,15kV
Rated frequency: 22Hz
Working frequency: 20-300Hz
Rated capacitance: 100kVA
HV winding is independent winding
LV winding voltage: 2x350V
HV winding voltage: 1kV, 2.5kV
Insulation level: LV winding 5kV/1mn
HV winding withstand 60s at 50kV
Structure requirement: air reactor, cooper lead wire winding
LV winding current: 2x142.8A
HV winding current: 40A
Cooling methods: ONAN
Heat‐resistance: A grade, 25# transformer oil
Working time: same as reactor, winding ≤65K, oil surface ≤55K
Sound level: 65dB
Impedance level: ≤6%

HET 90kVA/30kV,15kV Exciter Transformer, Inductance Resonant System HET 90kVA/30kV,15kV Exciter Transformer, Inductance Resonant System

HET 90kVA/30kV,15kV Exciter Transformer, Inductance Resonant System HET 90kVA/30kV,15kV Exciter Transformer, Inductance Resonant System

Exciter transformer protection: equip piezoresistor for each HV output, exciter transformer's input and output terminal connects with the ground via zinc oxide arrester, this methods can protect the operator and the equipment itself when test object breakdown. Structure:steel housing, HV bushing equips on the oil tank ,equips wheels. movable ,oil tank is shell-type,lead out the low voltage with porcelain bushing. Each terminal is lead out by relative voltage grade bushing. HV bushing lead wire go through isovolumetric capacitance core, exterminal insulation is fiber glass bushing. Bushing has corona ring .Oli tank has oil conservator to make sure the capacitance core in the oil. HV bushing can guarantee 30kV corona free .Exciter transformer insulation characteristic: Exciter transformer insulation level will determin transformer's safety work and insulation ageing speed.To guarantee no flashover which coming from external, electric potential raise and cause damage to the main insulation and minor insulation.We will also set insulation layer between HV windings and turn-to-turn.Winding is cylinder type.Capaiactance is determin  by the winding's area .When design,we'd try our best to make sure the top and bottom has the same ares,and compensate with electrostatic shield to improve the initial voltage distribution.Winging skeleton is made of compound insulation tube:can get down partial discharge and shielding the iron coil .

Principle Diagram: 


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