Three-Phase Network Analyser Circutor CVM-E3-MINI-MC-485-IC

The CVM-E3-MINI-MC-485-IC three-phase network analyser by Circutor, with code M56424, is an advanced tool designed for the monitoring and control of three-phase electrical networks, whether balanced or unbalanced. This device is primarily intended for use in distribution panels and low and medium voltage supplies, where a compact yet fully functional and precise analysis solution is required.

The CVM-E3-MINI-MC-485-IC is extremely compact, designed for DIN rail mounting with only three modules, making it ideal for installations where space is limited. In addition to its reduced format, its user interface features a high-contrast backlit display, facilitating data reading under any lighting conditions.

Accurate and versatile measurement:
The CVM-E3-MINI allows the measurement of up to the 31st harmonic in current and voltage, making it an indispensable tool for electrical power quality analysis. Its measurement capability includes fundamental electrical magnitudes such as voltage, current, frequency, active power (kW), reactive power (kvar), apparent power (kVA), as well as active energy consumption (kWh) and reactive energy (kvarh). Additionally, it offers precise measurement, with an accuracy of 0.5% in voltage and current and 2% in power.

This analyser supports connection with current sensors of type .../5 A, .../1 A or .../250 mA, and is compatible with Rogowski type current sensors, allowing it to adapt to a variety of electrical systems. This versatility ensures that the CVM-E3-MINI can be used in different electrical installations, both new and existing.

Advanced communications:
The CVM-E3-MINI-MC-485-IC is equipped with an RS-485 communication port, supporting Modbus/RTU and BACnet protocols, enabling the device's integration into energy monitoring and control systems, facilitating connection with other devices and management software. The communication speed can reach up to 19.2 kbps, ensuring fast and efficient data transmission.

In addition to its advanced communication capabilities, the analyser features a programmable transistor output that allows for alarm control or pulse sending for active or reactive energy monitoring. It also has a digital input that can be used for tariff selection or logical state control, adding an extra layer of control and flexibility in more complex applications.

Ideal applications:
This analyser is designed for a variety of applications, from real-time monitoring of electrical panels to energy consumption control in low and medium voltage installations. It is ideal for installations that require precise control of active and reactive energy, with the possibility of programming alarms for maximum or minimum values, thus offering complete control of the electrical system.

Moreover, the capability to visualise harmonics up to the 31st is crucial for installations requiring detailed power quality analysis, as it allows for the detection of distortions that can affect the performance of connected equipment.

Key technical features:

• AC power supply: 207…253 Vac, ensuring broad compatibility with standard electrical networks.
• Nominal voltage measurement: Up to 520V L-L, with a frequency range of 45 to 65 Hz, ensuring its application in common three-phase networks.
• Active power measurement accuracy: 2%, ensuring precise monitoring of energy consumption.
• Capability to measure nominal currents of .../250 mA, making it suitable for applications using current transformers.
• Programmable digital transistor outputs with a maximum voltage of 24 Vdc and a maximum current of 50 mA, allowing for alarm control or activation of external devices.

Installation and durability:
The CVM-E3-MINI is designed for easy DIN rail mounting, with a compact size of 52.5 x 118 x 74 mm, facilitating its installation in distribution electrical panels. Additionally, it is manufactured with a V0 self-extinguishing plastic enclosure, ensuring safety in case of overheating or short circuit. The device has an IP30 protection rating for its general casing and IP40 at the front, making it suitable for most indoor applications.