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30kv 3500kva Arc Furnace Transformer
30kv 3500kva Arc Furnace Transformer
30kv 3500kva Arc Furnace Transformer
30kv 3500kva Arc Furnace Transformer
30kv 3500kva Arc Furnace Transformer
30kv 3500kva Arc Furnace Transformer
30kv 3500kva Arc Furnace Transformer
30kv 3500kva Arc Furnace Transformer

30kv 3500kva Arc Furnace Transformer

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≥1 Pieces
US $20000
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Quick Details

Coil Number:
Other
Place of Origin:
Zhejiang, China
Brand Name:
EACHER
Model Number:
HSZ-3500/30-0.24-0.085
Service Condition:
Indoor
Tap Changer:
OLTC
Cooling Type:
ONAN
Rated voltage:
30KV
Iron Core:
Silicon Sheet
Frequency:
50Hz/60Hz
Winding Material:
Copper100%
Bushing:
Porcelain
colour:
customized
Loss:
Low Loss

Quick Details

Usage:
Power
Phase:
Three
Coil Structure:
TOROIDAL
Coil Number:
Other
Place of Origin:
Zhejiang, China
Brand Name:
EACHER
Model Number:
HSZ-3500/30-0.24-0.085
Service Condition:
Indoor
Tap Changer:
OLTC
Cooling Type:
ONAN
Rated voltage:
30KV
Iron Core:
Silicon Sheet
Frequency:
50Hz/60Hz
Winding Material:
Copper100%
Bushing:
Porcelain
colour:
customized
Loss:
Low Loss
Company Introduction
SHENDA electric group is a manufacturer and wholesale company that manufactures good & high quality electric transformers from 2000. The company provides the customized products and OEM service. The factory own the 3 production base worldwide,2 in China and 1 in USA.We also own a transformer research institute with more than 30 electric engineers .

SHENDA TRANSFORMER RESEARCH INSTITUTE.

www.shenda.com
Location:Jiangshan,China

SHENDA USA BRANCH- UPTEGRAFF FACTORY .

www.uptegraff.com
Location:Scottdale.USA

Jiangshan shenda factory.

Automatic silicon sheet cutting line.

Winding .

The winding must be especially protected – both against high electrical stress due to
external over voltages and against mechanical overloads by short circuits. They are made of copper or aluminum. Low-voltage windings are made of strip or flat wire while
high voltage windings are manufactured from round or profile wire. (“diamond-dotted paper”) bonds the winding into a compact block
while drying and increases the short-circuit capacity additionally.

Magnetic Core lamination.

The three-limb iron core is made of oblique cut Grain-oriented, seven-step silicon steel lamination insulated on both sides,
guaranteeing low losses and low noise. These values are even improved by laser treatment. It is protected on the surface with a
flash-proof varnish in order to prevent the sheet from corrosion and to reduce the noise.

Oil tank.

Whether during transport or operation –the tank must be absolutely tight under mechanical stress. We have vast constructional experience, the most modern calculation methods and high-quality welding work. Special attention is paid to
corrosion protection. Pretreatment of the surface is processed by phosphating pickling, contributes to corrosion protection, just
like multi-coating with preset drying times for each layer. On request, hot-dip galvanization provides for even better protection
Product Description
30-66kv on-load tap changer electirc arc furnace transformer (up to 200MVA)is popular world wide in different industry. It is impact and cost-effient.
Capacity
9000-200000KVA,Photo on the left shows a 3500kva transformer.
Primary voltage
30-66KV,customized
Secondary voltage
customized
Tap range
9-21 tap steps at primary side,customized
Impdedance
6-10%,customized
Frequency
50/60 Hz
Certifications
Certificates owned by shenda: 100MVA/220kv power transformer short circuit test report -issued by CESI Italy&CTQC China 120MVA/33KV oil EAF transformer 50MVA/69KV oil power transformer 10MVA/33kv dry-type transformer Type test report -issued by KEMA Netherlands 63MVA/110KV Power transformer short circuit test report -issued by CTQC China 12.5MVA/22KV Rectifier transformer routine test -issued by V-Check korea ISO 9001&ISO14001&OHSAS 18001 CE-POWER TRANSFORMER&FURNACE TRANSFORMER&DRY-TYPE TRANSFORMER&REACTOR
Test lab

Transformer under test.

Transformer and reactor in lab

Reactor under test

Testing are conducted for every transformer before delivery.Tests are classified to be routine tests and type test. A - Routine tests: According to IEC 60076 standard , the following tests must be carried out for all units of the transformers a- Measurement of winding resistance . b- Measurement of voltage ratio and check of phase displacement. c- Measurement of short circuit impedance and load losses. d-Measurement of no-load losses and current . e-Dielectric routine tests including the separate source AC voltage withstanding test and short duration induced over voltage withstanding test ( ACSD ) . B - Type tests : The following tests shall be carried out a- Temperature rise test b- Lightning impulse test C - Special tests : a- Determination of noise level according to IEC 60551 . b- Oil leakage test c- Overload test at 150 % rated current for one hour after temperature rise test ( top oil temperature rise and winding temperature rise must be measured and recorded in the report test also hot spot temperature rise must be calculated and recorded on the report test ) . d- Short Circuit Dynamic stability Test (test report from independent and accredited laboratory for similar transformer will be accepted). Test Procedure sample 1.Leak testing with pressure for liquid-immersed transformers Oil test 1) Color/Appearance 2) Oil dielectric loss tanδ 3) Break down voltage of oil 4) Dissolved gas analysis in oil 2.Measurement of voltage ratio and check of phase displacement 3.Measurement of winding resistance 4.Measurement of dissipation factor (tanδ) of the insulation system capacitances, and determination of capacitances 5.windings-to-earth and between windings. 6.Measurement of d. c. insulation resistance between each winding to earth and between windings 7.Measurement of no-load loss and current at 90%, 100%, 110% of rated voltage 8.Measurement of short-circuit impedance and load loss 9.Applied voltage test 10.Induced voltage test 11.Frequency response analysis-FRA test 12.Temperature-rise test 13.Sound level/noise test 14.Lighting impulse test 15.Operation impulse test
Details Images

High voltage/primary and low voltage/secondary bushings. .

A,B,C phase 30 kV porcelain bushing are installed on the top of transformer.Color for each phase can be customized according to
client local electric department.Some high voltage terminals can be added by a neutral bushing.

Oil conservator.

Oil conservator is located on the top of transformer with a rubber bag inside to keep air away from oil inside the tank.

Radiators.

Removable type radiators are designed to be fabricated seperately,plus the fan,Speed up heat dissipation of transformer.

Stainless steel nameplate.

Stainless steel 304 plate is used to print all parameters of transformer.It lasts long and will not fade.

Transformer terminal connection

Transformers are connected to the transmission line at primary side.
Customer Photos
Packing&Shipping

Bushings are covered with plastic to prevent moisture and dust.

Tap changer and control box are covered by plastic to prevent moisture and dust.

Protection film

Protection layer of plastic are covered all round the main body to keep neat.

Wooden cases/crates iron structure

Accessories are packed in a welded steel structure before packing on wood plates.

iron case.

iron case are applied for packing to accessories and small distribution transformers.

Loading transformer to truck

SHENDA has 75 tons and 50 tons crane for lifting transformers.

Steel structures protection

Small distribution transformers are packed in a welded steel structure before packing on wood plates.

Nude transformer mainbody

All drivers and truck have certificate to drive in China.Lashing chains are fixed at trucks robustly.Nitrogen or oil is filled for main body.

Transport to port.

All trucks are approved and certified to carry heavy cargos in china, transport from Jiangshan to shanghai or ningbo takes 6 hours.

Transformer oil tank

Oil tank filled with oil for filling after arrival on site.This tank is made by shenda and can be reused on site.

Terminal box and tap changer control box wood protection

Wood box are applied to protection HV or LV terminal box and tap changer control box or any other parts easy to get collision.

Truck with rain-proof cloth

All accessory crates are protected by water proof cloth on the way to port.

Transformer unloading at Shanghai port.

Transformer loading at Shanghai port

Tranformer loading on ship

After Sales Service

Phillippine installation site

South Africa installation site

South Africa installation site

Worldwide after-sales centers

SHENDA has after-sales agents in Phillippines,Malaysia,South africa,America,Ecuador.

We are professional to give installation and commission service worldwide.

Our after sales email is support@shenda.com,our after-sales manager will reply in 24 hours.
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