Introduction
The Three Phase Digital Voltmeter is a versatile device designed for precise measurement of voltage in three-phase power systems. This meter is crucial for ensuring the stability and safety of electrical circuits and equipment. Here’s a detailed introduction: Suitable for industrial, commercial, and residential settings where three-phase power systems are utilized.
Key Features
Accurate Voltage Measurement – Measures voltage across all three phases simultaneously, ensuring precise monitoring for balanced systems.
Three-Phase Support – Designed for three-phase power systems, providing real-time voltage readings for each phase.
Clear Digital Display – Large LCD/LED screen shows voltage values and additional data like current or power factor at a glance.
Auto-Ranging – Automatically adjusts the measurement range for accuracy and overload protection.
Data Logging (Optional) – Records voltage trends over time for analysis and diagnostics.
Modbus Communication – Supports remote monitoring and integration via Modbus protocol.
High Precision – Delivers reliable, high-accuracy measurements for critical applications.
Compact & DIN-Rail Mountable – Space-saving design for easy installation in electrical panels.
Application
Real-Time Voltage Monitoring – Ensures three-phase voltages stay within safe operating ranges.
Power Quality Assessment – Detects voltage sags, surges, and harmonics for improved system stability.
Phase Balancing – Helps maintain balanced voltages to prevent equipment damage and optimize efficiency.
Fault Detection – Identifies abnormal voltage patterns for early troubleshooting.
Energy Efficiency Monitoring – Supports power distribution optimization and energy management.
Renewable Energy Integration – Ideal for solar/wind systems to track voltage performance.
Industrial Automation – Enables precise voltage monitoring in control systems for process optimization.
Performance Characteristics
◎ High precision measurement of single phase AC/DC current
◎ Provide the digital tube display, local data query
◎ Programmable CT ratio
◎ Support for RS-485 communication, Modbus-RTU protocol
◎ Support for switch input, output, analog transmitting output
◎ A variety of dimensions to meet the dfferent requirements of the electric distribution box
Function Module
◎ Communication Interface: 1 loop RS-485 communication, ModbusRTU protocol
◎ Baud Rate: 1200~38400bps, the default is 9600bps Switch Input: 2 loops
◎ Switch Output: 2loops ( capacity: AC 250V/5A, DC 30V/5A)
◎ Transmission Output: 1 loop (analog output: 0/4~20mA or 0~5/10V)
Signal Input
◎ Connection Mode: single phase two wires
◎ Rated Current: AC1A, AC5A, DC0-5A
◎ Overload Voltage: 1.2 times (Continued), 2 times /second (instantaneous)
◎ Power Consumption: current: <0.4VA/phase
◎ Impedance: current: <20mΩ
◎ The Frequency: 45~65Hz
Terminal Layout