LYD301CT Three Phase CT Operated Energy Meter
Introduction
LYD301CT Three Phase CT Operated Energy Meter is designed for deployment in substations and pre-transformer metering points, making it ideal for energy auditing and loss analysis. It meets IEC Class 0.2S metering accuracy standards and supports the DLMS/COSEM communication protocol for full interoperability with other metering systems.
The meter uses a 20-digit STS token as its recharge medium, with data transmitted securely according to STS (Standard Transfer Specification) or CTS (Currency Transfer Specification) encryption standards. It can automatically disconnect the power supply in cases of fraudulent activity—such as terminal cover removal—or when the contracted power limit is exceeded.
- Plug and play modem
- Imax 10A
- Wide Range of Voltage
- Multi data records, curve
- Anti-tamper
- Local: RS485, IR, Box Open, MC171, RJ45, USB
- Downlink to CIU: RF, PLC, Wire
- Uplink to HES:GPRS,4G
- Uplink to DCU:RF, PLC, RS485
- Protocol: DLMS/COSEM, IEC62056-21
| Items | Parameters |
|---|---|
| Network | 3 Phase 4 Wires network |
| Nominative standard | IEC 62052-11, IEC 62053-22 |
| Nominative standard | IEC 62053-23, IEC 62055-31 IEC 62055-41, IEC 62055-51 |
| Nominative standard | IEC 62055-52, IEC 62056-21 |
| Accuracy class | Class 0.2S as per IEC 62053-22 |
| Accuracy class | Class 0.5S as per IEC 62053-23 |
| Reference voltage | Un=3x57.7/100V-3*240/415V, L-N |
| Operating voltage | Range 70%-120%Un |
| Maximum current | Imax up to 10A |
| Starting current | Ist=0.2%In |
| Reference frequency | 50/60Hz +/- 5% |
| Power consumption | Voltage circuit <1W, <2.5VA |
| Power consumption | Current circuit < 0.25VA @ Imax |
| Temperature | Operation: -40º to + 55º C |
| Temperature | Storage: -40º to + 85º C |
| Enclosure | IP54 IEC 60529:1989 |
| Communication | Local: Optical, RS-485, MC 171 |
| Communication | CIU: Radio Frequency, Wire |
| Communication | Remote: GPRS, 4G |
