3300kVA 3 phase, 50Hz  first Excitation transformer

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.
Excitation Transformers are used to excite the field of generators through a rectifier. They are designed to handle,non-linear,non sinusoidal loads resulting from their use with a variety of power electronic applications such as diode, thyristor or motor drive configurations from 6, 12, 24, 36, 48, or 60 pulse configurations.
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

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% Yd11 Impedance 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 60dB Partial 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)

Why Choose Us

FIRST-CLASS PROCESSING AND TEST EQUIPMENT
We have more than 500 sets of sophisticated, advance production and test equipments, complete and perfect processing 
equipments, and scientific and rational processing technology, which guarantee first-class products, Authorized by the
Bureau of Zhejiang Technology Supervision, Quzhou Fangyuan Inspection Company of Power Transmission and
Transformation Equipment, whick is based on our testing center, undertakes the quality inspection of the industry in our
province, this is a solid guarantee for our excellent product quality.

BEAUTIFUL ENVIRONMENT
We are confident that good products come from good personnel, and good environment makes qualified personnel. The
company is committed to creating a garden-like working environment for employees. We have green belts, modern
standardized workshops and well-planned parks where we sow our youth; we work hard, so we are harvesting the future.

With the first-class quality products, reasonable price and excellent after-sale services.product not only best-selling all
over the country,but also in the international market have higher credit, such as Thailand, Vietnam, Myanmar, Indonesia,
alaysia,Philippines, Ethiopia and Nigeria, Saxonstan, Uzbekistan, Korea, Turkey, Sudan, Iran etc. especially in the steel
enterprises, VILLE production of transformers already have high reputation.