DTS7666-4-DG Three phase electronic DIN RAIL energy meter
The three-phase four-wire rail type energy meter of our company uses microelectronics technology to measure electrical energy ,the use of imported special large-scale integrated circuits, the applicat
Details
The three-phase four-wire rail type energy meter of our company uses microelectronics technology to measure electrical energy ,the use of imported special large-scale integrated circuits, the application of digital sampling processing technology and SMT process and other advanced technologies research and development of a new trivalent electronic energy meter.The energy meter fully complies with the relevant technical requirements ofthe GB/T17215.321-2008 national standard and IEC62053- -21.
The meter is suitable for measuring three-phase AC active energy with a rated frequency of 50Hzor 60Hz. For fixed installation indoor use, the applicable ambient temperature does not exceed-25 ~+55 C the relative humidity does not exceed 95%, and the air does not contain corrosive gas and avoid dust, mold, salt spray, condensation, insects and other influences.
2.Main specifications and technical parameters
2.1 energy meter specification
| Name | Model | Accuracy | Rated voltage U | Rated current A |
| Three phase four wire energy meter | DTS7666- 4 | 1 | 220/380V | 1.5(6)A,5(20)A, 10(40)A, 15(60)A,20(80)A,30(100)A |
Note: In the rated current column, the value before the parentheses is the calibration currentvalue lb,in the parentheses the value is the rated maximum current value Imax.
2.2 Technical parameters
2.2.1 Error limit:
The basic error limit of the energy meter with balanced load
| Current value | PF(COSФ) | Error limit in percentage % | ||
| Direct | CT operated | Class 1 | Class 2 | |
| 0.1Ib~ Imax | 0.051b~Imax | 1.0 | ±2.0 | ±3.0 |
| 0.21b~ Imax | 0.1lb~Imax | 0.5L | ±2.0 | ±3.0 |
2.2.2 Starting
Under the condition of rated voltage, rated frequency and COS中=1, when the load current of the energy meter is the value specified in the following table, the energy meter can start and continuously measure the energy
| Meter type | Accuracy class 1 | Accuracy class 2 |
| Direct connected | 0.0041b | 0.005lb |
| CT operated | 0.002|b | 0.003|b |
2.2.3 Creeping
When there is no current in the current line of the energy meter and the voltage added to the voltage line is 115% of the rated value, the test output of the energy meter should not produce more than one pulse.
2.2.4 Operating voltage limit:70~115%Ub
2.2.5 Power consumption:≤2W and 10VA
3.Installation and use
3.1 Installation precautions a nd method
| Current value | PF(COSФ) | Error limit in percentage | ||
| Direct connect | CT operated | Class 1 | Class 2 | |
| 0.05Ib | 0.02lb | 1.0 | ±1.5 | ±1.5 |
| 0.1Ib | 0.05Ib | 0.5L | ±1.5 | ±2.5 |
| 0.8C | ±1.5 | -- | ||
| 0.1Ib~Imax | 0.05lb~Imax | 1.0 | ±1.0 | ±2.0 |
| 0.2lb~Imax | 0.1lb~Imax | 0.5L | ±1.0 | ±2.0 |
| 0.8C | ±1.0 | -- | ||
4. Outline drawing and wiring diagrame
