ESP CONTROLLER

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EasyCon-I ESP

The proposed general features and specification of Electrostatic Precipitator (ESP) Controller for Single Phase TR control operation as below

Features:
  • Spark rate control
  • Back Corona Detection
  • Semi pulse operation for ODD cycles
  • Internal Timer based Motorized 3 Rapper Controls
  • Modes of Operation
    • -Constant Current Output mode
    • -Load Status (External load dependent) mod
  • Monitoring Parameters
    • -Input Voltage (VP)
    • -Input Current (IP)
    • -Output Voltage mean (KVa)
    • -Output Voltage Peak (KVp)
    • -Output Voltage Trough (KVt)
    • -Output Current Mean (IS)
    • -Mains Frequency (Hz)
    • -Output KW
    • -Output KWH
    • -Firing angle (deg.)

Input Supply:
  • 24V AC +-10% @ 2A, 50/60Hz 5%, Single Phase

Human to Machine Interface (HMI):
  • Alphanumeric LCD display (16 x 4) for displaying the various parameter settings, actual status, alarms, trips etc.
  • Matrix Keypad (6 x 3) with 16 keys for setting parameter values

Analog Inputs
  • Input Voltage 0-5VAC@rated 415VAC (VP)
  • Input Current (IP)
  • Output Voltage mean 0-400uA@ rated kv peak (VS)
  • Output Current mean 0-1V@ rated mA (IS)

Analogue Outputs:
  • 0-20mA or 4-20mA for Output Current (IS)
  • 0-20mA or 4-20mA for Output Voltage (KV)

Digital Inputs
Potential free (NO) contacts for following digital inputs
  • Contactor On
  • Load status 1
  • Rapper Reduction

Alarm Input

Potential free (NO) contacts for the following Alarm inputs:

  • TR Temperature
  • Top Float / Oil level low
  • Rapper 1 feedback
  • Rapper 2 feedback
  • Rapper 3 feedback

Trip Input

Potential free (NC) contacts for the following trip inputs:

  • TR Temperature – Trip
  • Bottom Float / TR Pressure High
  • SCR Temperature high
  • HT Interlock
  • Overload Trip

Digital Output

Potential Free (NO) Relay contacts (24VAC @5A Max) are available for the following digital outputs:

  • HT ON
  • HT OFF
  • Local / Remote HT ON
  • Rapper 1
  • Rapper 2
  • Rapper 3
  • Buzzer

PWM Port Output

Digital signals for single phase TR:

  • Positive SCR ignition
  • Negative SCR ignition

Internal Software Alarm / Trips

Internal software alarms and trips:

  • AC Current High Trip
  • Synchronization Fail Trip
  • DC Under Voltage Trip
  • DC Overvoltage Trip
  • Contactor Error Trip

Communication Interface

RS 485 Port with RTU MODBUS Protocol:

  • Baud rate: 9600bps, 19200bps, 38400bps (Selectable through keypad only)



Specification User Mannual