Product overview:
The excitation transformer is a specifically for the excitation system of a generator to provide three-phase AC
excitation power supply device,excitation system through the silicon controlled rectifier,the three-phase power
conversion for generator rotor DC power supply,the formation of the generator field,through the excitation
system,regulating thyristor trigger angle,to achieve the purpose of regulating the motor terminal voltage and
reactive power.Usually connected to the outlet end of the generator,the ouput voltage of the generator is
high,and the rated voltge of the excitation system is relatively low,so it is necessary to take a step down
transformer.Generator excitation transformer of the safe and stable operation is self and shunt unit safe and
stable operation of the premise,turbine power generator stability,full load power generation of prerequisites,is
key to the reliable operation of the excitation system.
Products according to the structure for open type and door type two kinds,the door is uses the steel plate is
processed into a box sheel,transformer inside the box shell,the shell outside the box a pass in and out line hole
to install power lines.When necessary,according to the user's request to increase the voltage meter,current
meter,temperature control alarm system,steering wheel,etc.in order to move.
Product features:
The new high-quality silicon steel sheet production,reduce loss,improve efficiency.
Using high temperature and high quality wire to make,its own loss to the minimum,greatly improve the
effectiveness of.
Using high temperature resistant insulation material,improve the resistance to high pressure strength,insulation
level,prolong service life.
Patent design,beautiful,innovative,high power density,small size,high space usage.
Technical parameter
| Rated voltage |
Below 35kV |
| Output rated voltage |
400V |
| Rated frequency |
50Hz |
| Cooling mode |
Air cooling/self cooling |
| Insulation class |
F level or above |
| Work efficiency |
98% |
| Phase number |
Single-phase/three-phase |
3300kVA, 18±2×2.5%/0.85kV Yd11, 3-phase, 50Hz, Z=6%, Copper winding dry type with IP23 enclosure
Applied standard IEC60076 As per manufactuer's technical proposal.
ontinuous rated power
Electrical conditions
Rated voltage 3300kVA
3 phase, 50Hz first Excitation transformer
Stepping voltage adjustment solution
Wiring team
LV: 0.85KV, HV:18KV
18±2X2.5% Yd11Impedance 6% Voltage distribution
No load voltage/No load tap changer on HV side Coil material
HV: copper strip LV: copper foil sheet Insulation grade Degree of protection Power
frequency withstanding voltage Lightning
H, maximum temperature rise 80K IP23
Low voltage coil LV: 3KV High voltage coil HV: 50KV
Low voltage coil LV: 0 KV
impulse withstand voltage (peak)HV high voltage coil: 125KV
6000W no-load loss (Tolerance according to IEC 60076)
Load loss(75oC)No-load current
Specifications
15000W (Tolerance according to IEC 60076)0.8%Noise level 60dBPartial discharge
Cooling typE10pC (According to IEC standard)AN Overall size
(L×W×H):2200*3200*2700 mm Weight:Grade C/E/F (Class)
Approx. 11250 Kg (Machine)
Our sales team
Our advantages:
Quality Assurance
--From the very beginning, VILLE ensures quality in every step to achieve the best quality.
Experience Sharing
--With more than 30 years' experience in power industry, VILLE brings you an optimized solution.
Global Service
--Wherever you are, VILLE global network will support and provide you with value.
Quick Response
--In response to your needs without delay, VILLE knows the value of your time.
Thanks for choosing VILLE as your reliable partner and please trust both
of us will create a brilliant future!
Audited Supplier 
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