About our material and technology:Core:Our transformer's
core is made of high quality cold rolled grain oriented silicon
steel sheet with high magnetic permeability. It is using full 45°
slope lamination, so that the no-load loss and the no-load current
are reduced efficiently. We use Simulating Analysis in the core
model design, so that we can calculate the frequency and size of
the vibration exactly and avoid the core cavity resonance. Between
core & windings, and core & frame, we use spring connection. Then
the noise is lower 10 to 15dB than the standard.LV Winding:LV
windings, above 400 kVA capacity, are adopting superior foil
conductors, thus to obtain better amper-turn balance and reduce
more transverse magnetic flux leakage. Then to greatly improves
transformer's anti-short circuit capability.The wise design of air
passage within the winding, greatly increasing the winding's heat
dispersion effect. It helps to decrease temperature rise and
improve products' overload capability.HV Winding:HV windings are
made of superior copper-conductor wires. Adopting fiberglass to
reinforced insulation.The HV windings are casting under vacuum and
high pressure conditions with Germany HUBERS vacuum Cast Machine.
In this way, transformer's resin can get the best penetration. It
can also greatly reduce its partial discharge (partial discharge
for 11kV product could be lower than 5pC).HV windings are adopted
optimized structure to improve transformer's distribution of
electric field. We use our existing technology calculate and
analysis Lightning wave process simulation. Then substantially
improving product's anti-lighting capability.Ambient conditions for
Conventional transformers using:- Ambient temperature: Maximum
+40ºCMinimum -25ºC- Relative humidity: At 25ºC, not higher than 95%
for daily average humidity and not higher than 90% for monthly
average ambient temperature.- Altitude: less than 1000 meters.-
Seismic level: less than 3m/s2 at horizontal direction and less
than 1.5m/s2 at vertical direction.(Note: Pearl Electric
support customized transformers in special environment. Do not
hesitate to send us your requirements. Click here )About Pearl
Electric Co., Ltd. 1-Since 1958.2-Employee:600+(15%
R&D)3-Equipment:600+ sets(Key devices are exported from
Germany.) 4-Annual turnover:10 billion 5-Factory
area: 10.5 million square meters 6-Product range: Dry
Type Transformer/Oil Type Transformer/Power Transformer/Substation
Transformer ------------------------------------------------------------------------------------------------------------------------------------------------Pearl
Electric Co.,Ltd.Add: No. 118 Donghuan Road, Donghuan Street, Panyu
Distric, Guangzhou City, Guangdong Province, China. ZIP:
511400Web:pearl-electric.en.made-in-china.com/* January 22, 2024
19:08:37 */!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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