IEC IEEE ISO 20 Years Profession 10000kVA 35kv Electric Arc Furnace Transformer

UP FURNACE CO., LTD. was founded in 2018, a wholly-owned subsidiary of SHENDA ELECTRIC GROUP CO.,LTD, specializes in R&D, manufacturing, installation, maintenance and transformation of electric furnace products and EPC contracting business of metallurgical engineering. It is an emerging company for various large-scale steelmaking electric arc furnaces, ladle refining furnaces and large non-standard heat treatment furnace and other products in China.

Design and manufacturing capability:
1.Steelmaking electric arc furnace: the main equipment for smelting scrap steel, currently widely used three-phase AC arc smelting, there are three kinds of power configuration of ordinary power, high power and ultra-high power, rated capacity from 1.5t to 150t.
2.Ladle refining furnace: including LF, VD, VOD, VAD, RH and other furnace types, the most commonly used is LF ladle refining furnace, rated capacity from 10t to 300t.
3.Submerged arc furnace: mainly includes ferrosilicon furnace, ferromanganese furnace, ferrochromium furnace, ferronickel furnace, calcium carbide furnace, industrial silicon furnace, etc. The power is from 6300KVA to 48000KVA.
                               
ELECTRIC ARC FURNANCE

Steelmaking electric arc furnace is divided into normal power, high power and ultra high power according to matched power. It also can be divided into independent foundation, conjoined foundation, large pivotal bearing and four connecting link structure by roof rotating mechanism. There are left operation and right operation types for user's selection. According to the loading method, it can be divided into horizontal continuous feeding type electric arc furnace and furnace lid rotating top-opening feeding type electric arc furnace.The electric arc furnace consists of furnace body, furnace roof, tilting device, furnace lifting & rotating device, electrode lifting device, water-cooling device, hydraulic device, furnace transformer, secondary busbar, HV cabinet, LV electric and automatic control system etc, Capacity of EAF manufactured by our company is 10t-220t.

product series




Product Characteristics_ Type:HJSSPZ-10000/35
Place of Origin: Zhejiang, China (Mainland)
Brand Name: EACHER
Type:HJSSPZ-10000/35
Rate Power:10000 KVA  (long term 20% overload)
Primary voltage:35 KV                                 
Secondary voltage:270~221~170 V;  270~221 V is constant power output ; 221~170 V is constant current output
Primary rated current:165 A
Secondary constant output current:26124 A
Phase:3
Frequency:50HZ
Vector group:Yd11
Impedance:7-8% (at 270V )
Cooling method: OFWF
Cooling media:25# Transformer Oil
Regulation type: 9 steps On-load linear tap changer
Winding insulation level: A
Installation site: Indoor

Executive Standard
JB/T3837-96               Production Model Formation Method for Transformer
JB/T8636-97              Power Converter Transformer
GB1094.1-2-1996       Power Transformer
GB1094.3-5-2003       Power Transformer
JB5344.1-1991          General for Ore Furnace Transformer
JB/T 5344.1-2004      General for Submerged Furnace Transformer
JB/T 6303-2004         Technical Specification and Requirement for Calcium-Carbid Furnace Transformer

Site condition
1.Altitude Above sea level≤1000m
2. Max. Temperature: +40ºC, Min. Temperature: -25ºC, Max. daily temperature difference: 25ºC,Relative Temperature: 90%.
3.Max. wind speed :35m/s
4.Earthquake intensity: seismic acceleration ( Horizontal : 0.1g and Vertical: 0.2g simultaneously) the seismic force safety factor which transformer can support≥1.67.

Main structure features and protection
1.Wire inlet and outlet type: Wire inlet from the top tank cover, secondary wire outlet from side (inside delta)
2.Structure:Oil tank is cover type, core hanging free structure
3.Water cooler adopts stainless bolt spiral plate water cooler
4.Secondary wire leading out: Each phase of transformer has 4 water cooler tube
5.Oil tank uses folded plate, has advantages as high mechanical strength, good appearance, few welding line and no leakage
6.Sealing: secondary wire-out terminals adopt epoxy casting resin structure, Magnetic separation of double pressed plate, to make sure no leakage from wire-out terminals. Tank rim and hand hole adopt one formation acrylate rubber gasket which resistant high temperature, oil resistant, resistant to oxidation to make sure no leakage from sealing cover.
7.Oil drain valve is high quality copper valve. Butterfly valve for cooler is vacuum type.
8.Oil conservator: Full sealed oil conservator with rubber bag matched with magnetic type oil level gauge
9.Terminal box: Stainless material
10. Gas relay on the main oil tank for fault alarm, fault trip; adopts pointer type oil level gauge to indicate the high or low oil level alarm; Gas relay on On-load tap changer for fault trip; temperature thermometer adopts BWY-802A(4-20mA) has remote connector with display when oil temperature overheat will deliver alarm signal; pressure relief valve will deliver trip signal when the tank pressure is too high,
11.The primary of transformer installed with current transformer and matched with current converter

Shenda quality management:

• 100MVA/220KV power transformer --- short circuit test report from CESI Italy
• 120MVA/33KV EAF transformer; 50MVA/69KV Oil power transformer; 10MVA/33KV Dry type transformer ---Type test report from 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
• ISO9001&ISO14001&OHSAS18001
• Power transformer & Furnace transformer & dry type transformer & Reactor  ---CE

Factory documentation Model

1	Technical parameters
2	Outline drawing
3	Lifting diagram
4	Nameplate drawing
5	Control box drawing
6	Transportation diagram
7	Transformer install manual
8	Transformer operation / Maintenance instruction
9	Principles parts / components ex-work certification and operation instruction
10	Recommended spare part for 2-5 years operation
11	Test reports (routine test / type test / special test)
12	Etc…

During the design process, client will be permitted to come to factory to take a supervision and guidance, manufacture and acceptance test.
We provide engineering services like pre-commissioning / commissioning / install and operation consult support / technicians training on site.
We provide after-sales service.
We provide 12 months warranty of quality and performance