MULTI PHASE 2 X METER (EG ACR10)

A multi-phase 2x meter like the ACR10 typically refers to an energy metering device that can monitor two separate three-phase systems or circuits using a single meter. This type of meter is highly efficient for monitoring energy consumption in complex electrical systems, especially in commercial or industrial setups where multiple circuits need to be tracked.

Key Features of Multi-Phase 2x Meters (e.g., ACR10):

1. Dual Measurement for Two Systems:

   • The ACR10 can monitor two independent three-phase circuits simultaneously, providing separate data for each system.
   • Ideal for applications where you need to track energy consumption across two different areas or systems.

2. Three-Phase Monitoring:

   • Each of the two metering sections in the device is capable of measuring all three phases (L1, L2, L3) of its respective circuit.
   • Ensures accurate power and energy readings in multi-phase systems.

3. Compact Design:

   • Typically comes in a compact form factor for easy installation, often mounted on a DIN rail or in a panel.

4. Digital Display:

   • Features a digital LCD display that provides real-time information for both monitored circuits, including voltage, current, active/reactive power, and more.

5. High Accuracy:

   • These meters generally offer high accuracy (Class 0.5S or Class 1) for reliable energy billing and monitoring purposes.

6. Multi-Functionality:

   • Measures key electrical parameters, such as:
     • Active and reactive power
     • Apparent power
     • Power factor
     • Voltage and current (for each phase)
     • Frequency
     • Energy (active/reactive)
     • Demand
     • Harmonic distortion (in some models)

7. Communication Capabilities:

   • Most models support communication protocols such as RS485, Modbus-RTU, or Ethernet, allowing integration with building management systems (BMS) or energy monitoring software.
   • Facilitates remote data collection and monitoring for both metered circuits.

8. CT (Current Transformer) Input:

   • The ACR10 and similar models use external current transformers (CTs) to measure large currents accurately without needing to pass the full current through the meter.

9. Data Logging and Storage:

   • Some models are equipped with internal memory to store historical data, allowing for analysis of energy consumption trends over time.
   • Useful for energy audits and long-term monitoring.

10. Tamper Detection:

• Built-in tamper detection mechanisms to protect against unauthorized modifications or fraud.

Applications:

• Commercial Buildings: Used to monitor two different tenants or circuits in a commercial building with separate energy billing.
• Industrial Facilities: Ideal for monitoring multiple production lines or machinery systems that require individual energy tracking.
• Energy Management Systems: Often integrated into energy management systems (EMS) to monitor consumption across multiple circuits, optimize energy use, and identify inefficiencies.
• Solar and Renewable Energy: Can be used in solar installations to monitor two separate solar inverters or storage systems.

Example: ACR10 Overview:

The ACR10 is a versatile multi-phase meter designed to measure energy consumption in two separate three-phase systems. It’s suitable for industries or commercial properties where monitoring energy usage across two systems is necessary.

Technical Specifications (for ACR10 type meters):

• Voltage Range: 3 × 230/400V for three-phase systems
• Current Range: 0.05A to 100A (via external CTs)
• Accuracy: Class 1 (±1% accuracy for energy measurement)
• Communication: RS485 Modbus RTU (for remote monitoring and integration)
• Frequency: 50/60Hz
• Power Supply: 85V~265V AC/DC
• Mounting: DIN rail or panel mount
• Display: Backlit LCD for real-time parameter display

Benefits:

• Dual Circuit Monitoring: Reduces the need for multiple meters, cutting installation costs and simplifying wiring.
• Space Saving: Compact form factor makes it easy to install in control panels without occupying much space.
• Cost-Effective: Economical for applications where energy consumption of two independent circuits needs to be monitored.
• Real-Time Monitoring: Provides accurate and real-time energy data, helping in load management and energy audits.