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- brief introduction
- technical parameter
- Product size
Application
DTS450J/ DSS450J type three-phase electronic active watt-hour meter (also called watt-hour meter with LCD and RS485 interface) is designed and developed for electric power department or user to monitor the power grid quality, with high accuracy and reliability. The watt-hour meter adopts the advanced international large-scale integrated circuit of ultra-low power consumption and SMT process. It accurately measures the active energy of three-phase power grid with the reference ratio of 50Hz. It is designed according to the national standard of GB/T172152002 Alternating Current Static Watt-hour Meters for Active Energy (Classes 1 and 2) and its communication protocol has conformed to DL/T6451997 Multi-function Watt-hour Meter Communication Protocol.
Main functions
◆ Energy measurement
It can measure the forward and reverse electric quantity, display the measurement and accumulation of reverse energy and forward energy, also can indicate the reverse energy amount. Meanwhile, it can prevent the electricity being theft by reversing the current.
◆ Detection interface
There is a detection terminal of photoelectric isolation and pulse output, for checking the meter.
◆ Communication interface
There is a RS485 communication interface, convenience for the centralized meter reading system.
◆ Protection measures
The product internal design has the protection circuit of resisting the lightning strike and high-frequency electromagnetic interference.
◆ Wide range of working voltage
Three luminotrons, representing phase A, phase Band phase C respectively, indicates whether the phase failure happens, if any phase is failure, the corresponding indicator lamp goes out.
Main Technical data
1. Normal working voltage: 0.8~1.1 of reference voltage Utmost working voltage: 0.7~1.2 of reference voltage
2. Insulation voltage: ≥2000VAC
3. Voltage circuit power consumption: ≤2 W and 10VA Utmost working temperature(outdoor): -45℃~70℃ Storage and transport temperature(outdoor): -40℃~70℃ Relative humidity: 25% ~ 75％RH.
Produce Specification
External And Installation Size
