The Sonel range of high current and high voltage loop impedance meters allow for the measurement of EFLI (earth fault loop impedance) on a wide range of networks up to 900V.
Sonel MZC-304-PV is a fault loop impedance meter primarily design to test 1500V / 800V solar PV inverters. The MZC-340-PV will perform the loop test on 800V up to 900V making it ideally for larger solar farm and solar power plant installations.
For 690V wind farm and renewable fault loop impedance the Sonel MZC-330S will test on voltage systems up to 750V making it suitable for 690V fault loop impedance testing.
The Sonel MZC-320S has a test current of 130A at 230V and 300A at 550V or 24A at 230V and 30A at 550V. The meter meets the requirements of EN-61557.
The MZC-310S is a high current short circuit loop impedance meter able to measure low impedance values with a resolution of 0.1 ohm with a test current of 150A at 230V and 280A at 440V or 23A at 230V and 42A at 440V.
The MZC306 can measure short circuit impedance with a resolution of 0.01 ohm on electrical networks with an operating voltage of 110/190V, 115/200V, 127/220V, 220/380V, 230/400V, 240/415V, 290/500V, 400/690V (operating range 100V to 750V)
Sonel loop meters meet the requirements of EN 61010-1, EN 61010-031, EN 61326, EN 61557, HD 60364-6, HD 60364-4-41 and EN 04700.
