Type: DS(T)SD51-FXA Three Phase Static Multi-function Energy Meter

Accuracy: CL0.5S,1.0 (active)/2.0(reactive)

Power loss: ≤2W/5VA

Nominal voltage: 220V

Nominal current: 3×220/380V 3×57.7/100V( 3 Phase 4 lines) ;
3x100V(3 Phase 3 lines) 3×0.5(2)A ;3×1(2)A; 3×1.5(6)A; 3×3(6)A; 3×5(20)A; 3×10(40)A; 3×15(60)A; 3×20(80)A ;3×30(100)A

Frequency: 50Hz


1. Functions and Features

1.1) Measurement Function
a. Positive/negative active energy consumption measurement at different time segment
b. Negative active energy consumption measurement in four quadrants at different time segment
c. Positive/negative active energy consumption measurement (Programmable)
d. Positive/negative reactive energy consumption measurement (Programmable)

1.2) Real-time Measurement Function
a. Voltage and current virtual value measurement by Phase A, B and C
b. Total active/reactive energy consumption measurement
c. Instantaneous frequency measurement

1.3) Multi-rate Function
a. 4 tariffs, 10 time segments, 5 day tables, 4 time zones and 12 holidays

1.4) Communication Function
a. Meter reading and setting can be achieved via RS485 (1200~9600bps£)or infrared port
b. RS485 port electric insulation, lightning proof circuit design
c. Communication protocol: DL/T645-1997 Communication Protocol for multi-function meter

1.5) Output Port
a. Active/reactive test impulse output port
b. RTC second output port
c. Remote impulse output

1.6) Events Record Function
a. Event record of voltage/current missing, eligible voltage rate, programming, Max Demand reset, broadcast time synchronization etc.
b. Energy consumption frozen and stored function, load profile etc.
c. Positive active/reactive Max Demand measurement at different time segment
d. Negative active/reactive Max Demand measurement at different time segment

1.7) Display: LCD

1.8) Other Functions
a. Waking up and meter reading via infrared port under no energy
b. Malfunction display function
c. Backlight LCD display

2. Technical Characteristic
Accuracy : CL0.5S,1.0 (active)/2.0(reactive)
Reliability: 16-bit A/D adopted with high reliability
Stability: No calibration needed during long working period