- #1
rbarbali
- 3
- 2
Hi all.
I have a question.
I have a WEG asynchronous 3-phase motor, 0.55 kW (0.75 HP), 380 V, 50 Hz, cos PHI 0.82, 1410 RPM, star / Wye connected, plate current 1.50 A.
It's mounted on a conveyer belt and powered simply trough a 3-phase contactor and a Thermal Magnetic GV2ME.
In the facility, there were 410 V line voltage and I measured a line current of 1.60 A, but when later the voltage down to 400 V the current measured was 1.35 A, the current was measured by an RMS current probe.
I thougth that greater line voltage reduces the line current working near motor's nominal power, but I don't understand the measurement. Any suggestions?
rbarbali
I have a question.
I have a WEG asynchronous 3-phase motor, 0.55 kW (0.75 HP), 380 V, 50 Hz, cos PHI 0.82, 1410 RPM, star / Wye connected, plate current 1.50 A.
It's mounted on a conveyer belt and powered simply trough a 3-phase contactor and a Thermal Magnetic GV2ME.
In the facility, there were 410 V line voltage and I measured a line current of 1.60 A, but when later the voltage down to 400 V the current measured was 1.35 A, the current was measured by an RMS current probe.
I thougth that greater line voltage reduces the line current working near motor's nominal power, but I don't understand the measurement. Any suggestions?
rbarbali