Working Principle
An Energy Meter without CT directly measures current passing through it using internal current sensors. It is suitable for low to medium current loads where external CTs are not required. The meter calculates real-time energy consumption based on direct voltage and current inputs.
OVERVIEW
The Energy Meter without CT provides accurate measurement of active, reactive, and apparent energy, along with voltage, current, and power parameters. It is ideal for applications where current levels are within the meter’s direct measurement range, offering simple installation, reliable performance, and integration with monitoring systems for energy tracking and billing.
MAIN PARAMETERS
| Rated voltage |
230V / 3X 220/380V, 3X 380/660V (depending on model) |
| Reference frequency |
50Hz |
| Consumption |
<0.5VA (Each phase) |
| Current Input |
5A – 20A (direct input, no CT) |
| Starting current |
1% Ib (Class 0.5S), 4% Ib (Class 1) |
| Auxiliary Power Consumption |
<2 W |
| Auxiliary Power Supply |
AC 85–265V |
| Accuracy Class |
Class 0.5S, Class 1 |
| Standard Compliance |
IEC 62053-21:2003, IEC 62053-22:2003 |
| Measurement Parameters |
Voltage, Current, Active/Reactive Power, Energy, Power Factor, Frequency |
Functions
