DTS866/DSS866 Three phase electronic active energy meter (Liquid Display)

Overview

• The DTS866/DSS866 three-phase four wire electronic active energy meter adopts a dedicated large-scale integrated circuit and SMT manufacturing process, with superior performance, safety and reliability. This series of products has good resistance to electromagnetic interference, long service life, high accuracy and reliability, wide load, low power consumption, small size, light weight, easy installation, and anti electricity theft function.

• Its performance complies with the national standard GB/T17215.321-2008 "Special Requirements for AC Measuring Equipment Part 21: Static Active Energy Meters (Level 1 and Level 2)".

Main functions and features

• Total electricity meter indicator/LCD display.

• Total electricity meter indicator/LCD display.

• Active positive energy metering; Reverse energy forward metering.

  
  

• A-phase, B-phase, C-phase missing phase or power detection indication.

• A passive pulse output.

Note: According to user requirements, an LCD display can be equipped with a 485 communication interface.

Main technical indicators

• Specification Model

  model	rated voltage	Calibration current	accuracy class
  DTS866 / DSS866	3×220V/380V 3×380V	1.5(6)A、3(6)A、5(20)A、5(30)A 、10(40) A、15(60)A、 20(80)A、30(100)A	Level 1, Level 2
  	3×57.7V/100V 3×100V	1.5(6)A

  
  

• Basic error limit of electric energy meter with balanced load

  Current value I		Power factor (COS Φ)	Basic error limit (%)
  Direct access	Connected through a transformer		Level 1	Level 2
  0.05Ib≤I<0.1Ib0.1ib<	0.02In≤I<0.05In0.05in<	one	±1.5	±2.5
  0.1Ib≤I<0.2Ib0.2ib<	0.05In≤I<0.1In0.1in<	0.5L	±1.5	±2.5
  		0.8C	±1.5	——
  0.1Ib≤I≤Imax	0.05In≤I≤Imax	one	±1.0	±2.0
  0.2Ib≤I≤Imax	0.1In≤I≤Imax	0.5L	±1.0	±2.0
  		0.8C	±1.0	——

  
  

  
  

• Basic error limit of electric energy meter with unbalanced load

  Current value I		Power factor (COS Φ)	Basic error limit (%)
  Direct access	Connected through a transformer		Level 1	Level 2
  0.1Ib≤I≤Imax	0.05In≤I≤Imax	one	±2.0	±3.0
  0.2Ib≤I≤Imax	0.1In≤I≤Imax	0.5L	±2.0	±3.0

  
  

• Starting: Under the conditions of rated voltage, rated frequency, and COS φ=1, when the load current of the energy meter is the specified value in the table below, the energy meter can start and continuously measure electrical energy.

  Instrument type	Accuracy level 1	Accuracy level 2
  Direct access type	0.004Ib	0.005Ib
  Connected via transformer	0.002In	0.003In

  
  

• Stealth: Designed with anti creep logic. When there is no current in the current circuit of the energy meter and the voltage applied to the voltage circuit is 115% of the rated value, the test output of the energy meter should not generate more than one pulse.

• Voltage line power consumption: ≤ 2W/10VA.

  
  

• Working voltage range: 0.8Un~1.2Un

• Working temperature: -25 ° C~+60 ° C

• Extreme temperature: -30 ° C~+70 ° C

• The annual average humidity is ≤ 75%.

• Weight: Approximately 1.2Kg

• Dimensions: 230mm × 145mm × 73mm (Shell 1)/220mm × 146mm × 71mm (Shell 2)

Installation and Usage

• The electric energy meter should be installed inside the indoor or outdoor meter box, and the installation base should be fixed on a sturdy and fire-resistant wall. There should be no corrosive gases in the air. The specific installation dimensions are shown in Appendix Figure 1 (recommended installation height is 1.8m); If the machine is severely impacted or the shell is significantly damaged due to falling from a high altitude during the installation process, please do not install or power it on, and contact the supplier as soon as possible.

• The electric energy meter should be wired according to the wiring diagram (see Figure 2), preferably using copper wire or copper wire connectors.

Packaging and transportation storage

• The transportation and unpacking of this table should not be subjected to severe impact. The storage location should have an ambient temperature of -25 ℃ to 70 ℃, a relative humidity of no more than 85%, and should not contain corrosive gases in the air.

• The electric energy meter should be stored in the warehouse, and under the original packaging conditions, the stacking height should not exceed five layers. Electric energy meters with unpacked inner packaging should not be stored.

外形尺寸图

wiring diagram

Functional Terminal Diagram