Overview
The VIPAM 3500C is a digital protective relay designed for precise measurement and protection of switchgear power equipment. It integrates multiple protection functions using DSP algorithms and high-speed logic, suitable for electronic distribution panels. The device features a 3.2” TFT-LCD with language options and supports Modbus-RTU protocol for communication.

Features
The relay includes protective elements such as over-current, ground over-current, directional over-current, over-voltage, and under-voltage relays. It measures current, voltage, power, electric energy, and power quality parameters like harmonics. It offers multiple input/output channels and communication ports, including USB and Ethernet.

Specifications
The VIPAM 3500C supports 3P3W and 3P4W connections, operates on AC/DC power, and consumes 20W normally and 30W during operation. It functions within a temperature range of -10℃ to 60℃ and complies with standards like KEMC1120, IEC60255, and IEC61000-4.

Performance
The relay provides precise measurements for phase voltage, current, power, and electric energy, maintaining high accuracy across parameters. It records up to 1,000 events and 300 faults.

Operational Characteristics
The relay allows configuration of relay factors, including trip modes and time delays. It supports auto-reclosing and inrush detection, with logic functions for output control based on inputs and trip conditions.

Conclusion
The VIPAM 3500C is a versatile protective relay for modern power distribution systems, offering comprehensive features and robust specifications for safety and efficiency.

Specifications
Key parameters include start-up current, operating time, pick-up, lock current, and lock time, with specific ranges and step increments. Time accuracy is within ±5% or ±30ms.

Procedures
The relay supports trip modes like Disable, Trip, Alarm, and Trip & Alarm, with settings for operational steps and time delays.

Standards and Testing
The VIPAM 3500C complies with standards such as KEMC1120 and IEC60255-26, tested for burst disturbance, electrostatic discharge, and electromagnetic field disturbance.

Communication
The relay features USB-B, RS422/485, and Ethernet ports, supporting Modbus RTU and DNP3.0 protocols with baud rates from 4,800 to 115,200 bps.

Display and Interface
The device includes a 3.2-inch color TFT-LCD for displaying values, settings, and event records, supporting up to 1,000 event records and 300 fault records.

Connection Methods
Details on connection methods for 3P4W and 3P3W systems with CT/PT inputs are provided.

Exterior and Part Names
The document describes exterior components, including status LEDs, direction buttons, and USB ports, and outlines the terminal layout.

Characteristics Curves
Characteristics curves for IEC, KEPCO, and ANSI standards describe operation time in relation to input current and setting current.

System Configuration and Management
The relay supports system configurations like inrush current suppression and error monitoring, with options for log management.

Protective Relay Functions
The VIPAM 3500C offers protective functions like overcurrent, grounding, over-voltage, under-voltage, motor startup protection, and harmonic wave suppression.