banner

Chemical

High Power Transformer Rectifier Systems For Electrochemical Applications

Added Benefits of Power Electronic Systems Supplied by Neeltran — Robust and Reliable Power to run your processes.

At Neeltran, we are uniquely positioned as one of the few companies in the world that designs and manufactures its own transformer rectifiers and rectifiers in the same facility under one management team. This unique capability allows for combined Full Current and Full Voltage factory testing of the transformer and rectifier in their actual configuration prior to shipment.

An experienced client requires combined testing to eliminate integration problems at the site and to assure the shortest commissioning time, resulting in significant cost savings and the highest quality units.

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. Neeltran offers oil cooled transformer with water cooled rectifier as well as water cooled transformer with water cooled rectifier which is the lowest cost solution (green solution).

Electrochemical markets served: Chlorate, Chlor-alkali, Chlorine, Hydrogen and all other gasses and chemicals that use electrolytic processes.
 

  • Latest safety features
  • Design to all types of environments
  • 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 customers systems Semiconductor Plasma Arc protection available
  • Diode and SCR
  • On Load Tap Changer available, in all cases including NLTC tap changer will have its own separate oil supply
  • Mutliple DC current measurement types available
  • EMF, RFI and Magnetic studies available
  • FEM analysis available System coordination study available
  • Harmonic studies available
  • Complete ANSI and/or IEC testing available
  • 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 also with separate building and types of IP or Nema Ratings Turn-key systems available
  • Conservative Transformer design 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
  • Design to local environment, altitude and cooling conditions with all cooling system types available
General Specifications Data Sheet PDF Data Sheet PDF (Spanish)
Three-phase supply voltage main by customer Vac up to 69000
Maximum power kVA up to 65000
Three phase voltage on the secondary Vac up to 1500
Frequency Hz 50 / 60
NLTC or OLTC No Load and On Load Tap Changers
DC Current Adc up to 200000
DC Voltage Vdc up to 1100
Rectifier Connection Bridge or Star
Pulses 6 / 12 / 18 / 24 / 36 and more
Control card type Digital or Analog, hard wired or OPTO
Accuracy of the constant current control system ±0.5%
Transformer Cooling Oil to Water / Oil to Air
Transformer Manufacturer Neeltran
Transformer Oil Type Mineral / FR3 / Silicon
Metering Shunt / LEM / Primary CT
PLC Allen Bradley or Siemens, others available. Dial in Modem or Cellular modem for diagnostics
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