Power measurement in a single-phase mains network with ohmic consumers. Beckhoff EL3443, EL3483, EL3443-0011, EL3453, EL3483-0060, EL3423, EL3443-0010, EL3443-0013, EL34 Series

Beckhoff EL3443-0013 is a high-performance EtherCAT Terminal for 3-phase energy and power measurement. It provides accurate and reliable measurement of electrical parameters such as voltage, current, power, energy, and power factor. With its advanced features and capabilities, the EL3443-0013 is ideal for various applications in power monitoring, energy management, and quality control systems.

Application examples

7.3 Power measurement in a single-phase mains network with ohmic consumers

• The voltage is measured via connections L1, L2, L3 and N.

• The current is measured via three

current transformers [ } 29]

and the connections I

, I

and I

(star point of the current transformers).

WARNING

WARNING: Risk of electric shock!

Bring the Bus Terminal system into a safe, voltage-free state before starting mounting, disassembly or wiring of the Bus Terminals!

NOTE

Attention! Risk of device damage!

Avoid confusing the current and voltage circuit during connection, since the direct connection of mains voltage to the terminal points for the current transformers (typical input resistance 220 mΩ) would destroy the power measurement terminal!

Fig. 165: Power measurement at ohmic consumers

264 Version: 1.5

EL34xx