The ABB EPIC II (V4550220-0100) is a high-performance, microprocessor-based controller designed specifically for the management of Electrostatic Precipitators (ESPs). As the “Electrostatic Precipitator Integrated Controller,” the EPIC II series is engineered to optimize particulate collection efficiency while minimizing energy consumption. It achieves this by precisely controlling the Transformer-Rectifier (T-R) sets, managing spark rates, and coordinating rapping sequences. The V4550220-0100 model is recognized for its robust processing power and its ability to adapt to varying flue gas conditions in real-time, ensuring compliance with strict environmental emission standards.
Product Specifications
For more information and availability, please visit the product page: EPIC II
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Manufacturer: ABB
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Model Series: EPIC II
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Part Number: V4550220-0100
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Device Type: ESP Control Unit / Voltage Controller
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Control Method: Automatic Voltage Control (AVC) with Spark Response Logic
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Interface: Integrated keypad and multi-line alphanumeric display
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Communication: Support for serial protocols and remote DCS integration
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Input Power: 115/230 VAC (Field selectable)
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Operating Temperature: -20°C to +70°C (Industrial grade)
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Dimensions: 280 mm x 210 mm x 150 mm (Approximate)
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Weight: 3.2 kg (7.05 lbs)
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Country of Origin: United States / Sweden
Application Fields
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Power Plants: Controlling emission levels in coal-fired and biomass boilers.
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Cement Industry: Managing dust collection in rotary kilns and clinker coolers.
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Steel Production: Particulate recovery in sinter plants and basic oxygen furnaces.
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Waste-to-Energy: Flue gas cleaning in municipal solid waste incinerators.
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Pulp and Paper: Chemical recovery through the management of recovery boiler precipitators.
Product Instructions
The EPIC II V4550220-0100 should be installed within a NEMA-rated enclosure to protect against dust and moisture. Ensure all power is disconnected before mounting the unit to the backplane. Field wiring from the T-R set and primary current transformers (CTs) must be connected to the terminal blocks according to the system schematic. Proper grounding is essential to prevent interference from the high-voltage environment typical of ESP systems. Upon initial startup, the user should configure the “Spark Limit” and “Background Current” settings via the front panel to match the specific characteristics of the precipitator field. The unit features an “Auto-Tune” mode that monitors the secondary voltage and current to find the optimal operating point for maximum dust migration velocity without excessive arcing.
Q&A: Common Questions
What is the primary benefit of upgrading to an EPIC II controller? The EPIC II provides much faster spark detection and recovery compared to legacy analog controllers. This reduces “dead time” after a spark, keeping the secondary voltage higher on average and significantly improving particulate collection efficiency.
How does the unit handle “Back Corona” conditions? The V4550220-0100 includes specialized algorithms to detect high-resistivity dust conditions. When Back Corona is sensed, the controller automatically enters a “Pulsed Firing” mode to reduce current and prevent the ionization of the dust layer on the collecting plates.
Is this unit compatible with remote monitoring? Yes, the EPIC II can be networked to a central PC or DCS. This allows plant operators to monitor secondary voltage, secondary current, and spark rates for every field in the ESP from the control room.
What does a ‘Phase Loss’ alarm indicate? A Phase Loss alarm typically indicates an issue with the incoming AC power supply to the T-R set or a failure in the SCR firing circuit. Check the primary fuses and the thyristor module before resetting the controller.
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