Heating, DC Arc Furnace
High Power Transformer Rectifier Systems For Furnace Applications
Added Benefits of Power Electronic Systems Supplied by Neeltran – Robust and Reliable Power to run your 24/7 processes.
Neeltran possesses multi-industry, engineering, and manufacturing experience that helps us to be flexible and design products that meet your specific technical and safety requirements.
Markets served: Titanium, Glass, Carbon, Carbon Fiber, Scrap and Specialty.
- DC reactors and low ripple available
- Latest safety features
- Design to all types of environments and contamination
- Remote monitoring via PLC modem
- State-of-the-art Neeltran control boards with Microprocesser based controller available
- All types of PLC's available for ease of interface to customer systems
- Diode units available
- On Load Tap Changer available, in all cases including NLTC tap changer will have its own separate oil supply
- Based on specifications we can conform to ANSI, IEC, IEEE,NEMA, CSA, BS, AS, JS, CE etc...
- Design to seismic zone and altitude
- Walk-in metal or aluminum enclosures available with all types of IP or Nema
- Ratings Conservative Transformer design (dry, water or oil type)
- High Efficiency units with low operating temperatures
- Conservative selection and specially developed water cooled thrysitor system provides unmatched reliability N-1 SCR's with no need for matched devices
- Modular and scalable design
- Modernization and component reduction improvements leads to best MBTF Multi-pulse configurations available
- Superior short circuit withstand
- Mutliple DC current measurement types available
- EMF, RFI and Magnetic studies available
- FEM analysis available
- Harmonic studies available
| Three-phase supply voltage main by customer | V | up to 69000 |
|---|---|---|
| Maximum power | kVA | up to 10000 |
| Three phase voltage on the secondary | V | up to 300 |
| Frequency | Hz | 50 / 60 |
| NLTC or OLTC | No Load and On Load Tap Changers | |
| DC Current | A | up to 60000 |
| DC Voltage | V | up to 300 |
| Rectifier Connection | ANSI - IEC | Bridge or Single Way |
| Pulses | A | 6 / 12 / 18 / 24 / 36 and more |
| Control card type | V | Digital or Analog, hard wired or OPTO |
| Accuracy of the constant current control system | ±0.5% | |
| Transformer Cooling | ONAN-ONAF-OFAF-OFWF-KNAN | |
| Transformer Manufacturer | Neeltran | |
| Transformer Oil Type | Mineral, FR3, Silicon | |
| Temp class | 105°C | |
| Installation | Indoor or Outdoor | |
| Rectifier Cooling | Deionized Water to Water / Deionized Water to Air | |
| Rectifier Enclosure Type | Compact / Semi-walk in / Walk in | |
| Rectifier Manufacturer | Neeltran | |
| Rectifier power section material | Aluminum or Copper | |
| Rectifying elements | Thyristors / Diodes / IGBT | |
| Redundancy | N+X | |
| Line Up Testing Available | Combined Test at Neeltran Factory |