ALSTOM 12004-102-01 VPS BOARD VER.C Product Description

ALSTOM 12004-102-01 VPS BOARD VER.C (Voltage Processing Section board) is a precision voltage signal conditioning & protection PCB for Alstom MiCOM series protective relays. It samples, isolates, filters and scales AC voltage signals from VT/PT voltage transformers, converts raw analog voltage inputs into digital signals for the relay main CPU. This board supports overvoltage, undervoltage, synchrocheck and distance protection calculation for power grid equipment. VER.C denotes the hardware revision C. It is stocked as fully tested spare replacement board for power substation protection relay overhaul.

Product Features

• VPS voltage processing board for Alstom MiCOM P34x / P40 series protection relays
• Isolation, filtering and signal scaling for PT/VT secondary voltage inputs
• Converts high-voltage analog signals into low-level digital sampling data
• Supports protection algorithms: overvoltage, undervoltage, synchrocheck, distance protection
• High precision voltage sampling for power system fault detection and metering
• Built-in surge protection circuit to suppress transient voltage spikes from grid faults
• Conformal coated PCB for substation cabinet dust, humidity and corrosion resistance
• Gold-plated connectors for stable internal relay backplane connection
• Onboard self-test circuit to detect signal loss and hardware anomalies

Application Scenarios

• Power substation MiCOM protection relay internal voltage acquisition replacement
• Transmission line, transformer and generator protection control panels
• Power plant auxiliary electrical system protection and synchronizing check
• Petrochemical and mining on-site power distribution relay cabinets
• Grid tie-in cabinet voltage monitoring and synchrocheck protection
• Retrofit, maintenance and spare replacement for legacy Alstom MiCOM relays

FAQ