WFET-1000 Electrical Load Management Instrument
General introduction:
WFET-1000 electrical load management instrument is an important part of modernization management, which achieves the user's electric energy information acquisition including AC analog acquisition, electric energy meter data acquisition, switching value and pulse data acquisition. In addition, our data logger realizes electric energy metering of equipment condition and power quality monitoring, customer electrical load and energy monitoring, as well as management and transmission of the acquired data.
| Items | Indicators |
| Standard | Q／GDW 1374.1-2013, Q／GDW 1375.1-2013, Q/GDW 129-2005, Q/CSG 1209007-2015, Q/CSG 00009006-2013 |
| Communication protocol | Uplink: Q／GDW 1376.1-2013 , DL/T698.45, Q/CSG 11109004-2013 |
| Downlink: DL/T645-1997 DL/T645-2007, Red Phase, Landis+Gyr | |
| Communication mode | Remote: GPRS/CDMA/3G/4G, and Ethernet is standardly configured |
| Local: 2 channel RS-485, 1 channel far infrared, 1 channel RS-232 | |
| Power supply | Three-phase three-wire system, 3×100V±30% Three-phase four-wire system, 3×220/380V±30％, 3×57.7/100V±30％ work normally with two-phase missing |
| Working environment | Normal working temperature: -40℃～+75℃; relative humidity: 10%～95%; air pressure: 66～106kPa |
| Overall power consumption | Non-transmission state overall active power consumption ≤5W apparent power consumption ≤10VA |
| Input interface | 2~4 channel teleindication/ pulse input passive contact access mode |
| Output interface | Active, reactive pulse output; 2~4 channel telecontrol e contact output (normally open normally closed contacts are provided on each channel),1 channel normally open alarm contact. Relay adopts brand long-life relay (open and close 100 million times), the capacity is 250V/5A telecontrol/alarm maloperation rate: ≤10-9, telecontrol/alarm rejection rate:≤10-6 |
| Storage capacity | 128MB FLASH |
| Metering accuracy class | Active: class 0.5s, reactive: class 2.0 |
| Clock | Clock error ≤0.5s/d, power-off continuous operation for 10 years |
| Reliability | MTBF≥7.6×104h |
| Structure | length×width×height:290mm×180mm×95mm |
Main features
1. The working power supply range is wide, reaching up to ±30% of the rated voltage.
2. High reliability.
3. A large number of electric meters(8~16) can be connected.
4. The electric meter protocol library is rich, which supports common electric meters at home and abroad and permits protocol customization
WILLFAR as a professional electrical load management instrument manufacturer, mainly manufacture meter data management instrument, there are main products like electrical power data logger, data concentrator, data collector, power quality analyzer, applied for precision data logging, electric power monitoring, data management and data transmission. To serve daily life much better, WILLFAR company also provides custom electrical meter data management and energy management solutions in client demands.
