ALSTOM EP3‑E‑4‑A ESP Controller Module

Technical Specifications

Model：EP3‑E‑4‑A

Brand：ALSTOM

Product Type：ESP microprocessor controller

Applicable System：EPIC‑III series,electrostatic precipitator equipment for power plant flue gas treatment

Supply Voltage：110‑220V AC jumper selectable

Signal Input：Secondary voltage,secondary current,primary current sampling signal

Control Output：Thyristor SCR firing pulse output,rapper control signal

Communication Interface：RS‑485 serial bus

Display：Local LED digital display for parameter checking and fault indication

Built‑in Function：Spark arc detection,spark rate adjustment,thyristor firing angle control,operation data recording,fault alarm output

Working Temperature：‑10℃ ~ +60℃

Storage Temperature：‑20℃ ~ +70℃

Protection Class：IP20

Mounting：Cabinet panel mounting

Dimension：190mm135mm45mm

Weight：0.82kg

Product Brief:

EP3‑E‑4‑A is legacy microprocessor‑based ESP controller of ALSTOM EPIC‑III series. It is specially used for power plant electrostatic precipitator transformer‑rectifier set control. It collects secondary voltage and current sampling signals in real time,detects spark and arc phenomenon inside electric field,adjusts thyristor firing angle dynamically. Optimize spark frequency to guarantee dust‑removal efficiency while reducing power consumption. It supports local parameter setting via front‑panel display,uploads running data and fault information to upper monitoring system through RS‑485 bus. Fan‑less cooling design adapts to harsh dust‑containing industrial environment. This is EOL discontinued spare part,widely applied for old flue‑gas treatment system maintenance and renovation. Please confirm hardware revision and program configuration before purchase. Strict ESD anti‑static protection shall be performed during installation.