Features and Benefits
System overview
Proven in several global installations, this system includes two VFDs supplied for the winches and rotary joints. The VFDs are packaged with two cabinets that are to be located in a non-hazardous area, preferably near the PLC panel to minimize end user wiring. Both VFDs in each pair are capable of operating two units and are supplied in pairs to provide a backup. The PLC controls the switching of what unit is being operated by the VFDs, and a switching unit will automatically engage the backup VFD in the event of a failure in the primary VFD. A failure alarm will indicate the switch but will not prevent the finishing of the drum cut.
Benefits
- Proven upgrade provided to several sites with smooth transition
- When mated with a frequency converter, the electric drive becomes a critical component for achieving reliable automated decoking.
- Fully integrated testing program verifies the functional and load rating of the electric winch and controls. The winch motor/brake and VFD controls are all tested together to assure seamless installation at site.
- Full speed and torque control are attained through a continuous feedback signal from the electric motor to the VFD.
- The VFD control panel interfaces with a PLC to provide the decoking operator with vital information.
Industries
• Oil & Gas
• Downstream Processing
