All Trade Marks, Logos, Pictures and Files are the Exclusive Property of the Respective Manufactures

DECS-400

The DECS-400 is a microprocessor-based controller that provides excitation control, flexible logic control, and optional power system stabilization for synchronous machines in an integrated package. The controller provides an analog output to control the firing of external bridge(s) and monitors machine parameters to control, limit, and protect the synchronous machine from operating beyond its capability limitations.

Features include:

• Five Control Modes, with autotracking between modes
  - Automatic Voltage Regulation (AVR)
  - Field Current Regulation (FCR)
  - Power Factor (PF)
  - Field Voltage Regulation (FVR)
  - Var Control 0.20% Voltage Regulation
• Accuracy Two pre-position set points for each mode
• Two Programmable Analog Outputs
• Setup from Front Panel HMI or by PC (local or remote)
• 40 Standard Stability Settings
• Time synchronization using IRIG or NTP (via Ethernet)
• Optional Integral Power System Stabilizer
  - Dual input, integral of accelerating power (IEEE PSS2A/2B)
  - Customer selectable speed-only sensing
  - Two wattmeter power measurement
  - Optional Frequency Based Operation
  - Generator or Motor control modes