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Page
１／７
Quick operation manual of DTSU666-
□
series and DSSU666-
□series
Digital Three-Phase Energy Meter
Thank you for using the products of Zhejiang CHINT Instrument & Meter Co., Ltd. In order to have a
safe and correct use of the instrument, please read this manual carefully and make sure to pay attention to
the following points in use:
This instrument must be installed and maintained by the qualified professionals;
The input signals and auxiliary power supply must be cut off before wiring of the instrument;
Make sure every part of the instrument without voltage by continuously using appropriate
voltage detection device;
The following conditions will lead to the damage or abnormal operation of the device:
Incorrect ratio setting of the instrument;
Out of range of auxiliary power supply
、
voltage
、
current
、
frequency
；
Incorrect input polarity of current or voltage;
The terminals are not connected according to the requirements;
1.
Technical parameters
Table 1
Technical parameters
Index
Input
signal
Measuring network
3 phase 3 wire(DSSU666
□series)
3 phase 4 wire(DTSU666
□series)
Voltage
Rated value
3 phase 3 wire
AC 3×380V
；
AC 3×400V
3 phase 4 wire
AC 3×220/380V
；
AC 3×230/400V
Operating
voltage
0.7Un—1.2Un
Consumption
≤8VA/1W(per phase)
Resistance
＞
500kΩ
Current
Rated value
3 phase 3 wire
AC 5(80)A
3 phase 4 wire
AC 1.5(6)A
Consumption
≤1VA(per phase)
Resistance
＜
20m
Ω(per phase)
Frequency
Input range
45Hz
～
65Hz
Output
Display
LCD display
DSSU666
□and
DTSU666
□series
Active energy
Class1
resolving power 0.01kWh
Reactive energy
Class 2
resolving power 0.01kvarh
Active energy
Class 0.5S
resolving power 0.01kWh
Reactive energy
Class 2
resolving power 0.01kvarh
Energy
Energy
measurement
forward
、
reverse active energy,
four-quadrant reactive energy.
Pulse constant
AC 3×380V
；
AC 3×400V
AC
1.5(6)A
6400imp/kWh(imp/kvarh)
AC 3×380V
；
AC 3×400V
AC
5(80)A
400imp/kWh(imp/kvarh)
AC 3×220/380V
；
AC 3×230/400V
AC
1.5(6)A
6400imp/kWh(imp/kvarh)