MK8 SCR Converter

The MK8 is a voltage source inverter with a parallel tuned circuit. This range of power supply is designed as an economic and reliable solution for applications up to 750kW. The parallel tuned circuit keeps the high currents away from the inverter thyristors (SCR). The lower currents flowing into the SCR's results in low power loss and high efficiency.

Control is by a combination of rectifier voltage control at lower power levels and inverter swept frequency control at higher power levels. This provides very controllable starting and excellent fault protection, along with constant output power over the entire heating cycle. Accurate and reliable control is achieved in extreme ambient conditions without the need for additional cooling.

Standard Features:

• Compact, Economical, Easy Access Package incorporates a design with front access for convenient and logical maintenance
• Most Efficient Coupling Method
• Utilized to give the best matching capabilities over a wider range of operating conditions without the need of transformer tap or capacitor switching
• High Efficiency allows use of maximum inlet water temperature of 115° F.
• Full Range Power Adjustment from a single operator control.
• Water Cooled Capacitors with pressure sensitive safety switches
• Insrumentation
• Output power (KW) meter
• Output voltage meter
• Operating frequency meter
• Diagnostic monitor
  • Rectifier running
  • Inverter on
  • Rectifier full on
  • Control voltage limit
  • Frequency limit
  • Ramp limit
  • Turn-off time limit
  • Voltage trip
  • Current trip
  • Groung Trip
• Operator Controls
  • High frequency power on/off/reset
  • Power control potentiometer
  • G.F.I. and leadkage detector button