Overview & Basic Information
Core
Core-type Transformer
Cooling Method
Oil-immersed Type Transformer
Winding Type
Multi-winding Transformer
Certification
ISO9001-2000, ISO9001, CCC
Usage
Rectifier, Power, Distribution, Furnace Transformer
Type
Calcium Carbide Furnace Transformer
Reference Standard
IEC 60076
Load Losses at 75
280 Kw ( 60mva 950V )
Cooling System
Ofwf, Double Tube, 2 Coolers
Production Capacity
10/Years
Product Description
Electric Arc Furnace Transformer
Electric furnace transformers are specialized units designed to supply power to industrial electric furnaces, dropping high voltage to the precise working voltage required. These units are essential for steelmaking, smelting iron alloys, hydrosilicons, and carbides.
The 140MVA, 35KV arc furnace transformer is a large-capacity, industrial-grade special transformer. It provides stable, adjustable high-power electrical energy for arc furnaces (approximately 120-150 tons capacity), generating high-temperature electric arcs through electrodes to melt metal raw materials efficiently.
Key Models & Classifications:
- H: Steelmaking arc furnace / HJ: Ladle furnace
- HZ: Electro-slag furnace / HC: Calcium carbide furnace
- HK: Mineral hot furnace / HG: Line frequency induction furnace
- Cooling: ONAN (Natural), F (Wind), S (Water), P (Forced Oil)
- Tap Changer: Off-circuit or OLTC (On-load)
Detailed Photos
Technical Specifications
| Transformer Data Parameters |
| Operating Voltage | 33KV ± 3% |
| Frequency | 50Hz ± 1% |
| Rated Capacity | 144 MVA |
| Over Load Power | 144MVA plus 20% (30 min) |
| Rated Primary Current | 1049.7 A |
| Insulation Level (AC/LI) | 85/200 kV |
| Vector Group | D/d0 with booster regulation transformer |
| Secondary Voltage Range | 950-500 V |
| Max. Secondary Current | Approx. 42120 A |
| Short-circuit Voltage | 8% (at 950V, 60MVA) |
| Tap Changer Type | On-load Tap-changer (MR) |
| Cooling System | OFWF |
Manufacturing & Service Excellence
Equipped with over 500 sets of advanced production and testing equipment, the facility ensures first-class processing technology. Every product undergoes rigorous quality inspections authorized by specialized technology supervision bureaus.
Order Instructions & Requirements:
Please provide the following data for custom designs:
- Rated Capacity (kVA) and Phase (Single/Three)
- Rated Voltage (H.V. / L.V.) and Tapping Range
- Insulation Level and Vector Group
- Short-circuit Impedance & Cooling Method (ONAN/ONAF)
- Tapping Method (OLTC/OCTC)
Tanaka Electric
