CHINT DTSU666-CT User Manual

DTSU666 series and DSSU666 series
three phase electronic energy meter
ZTY0.464.1448
User manual
Page 14, Total 21
1020H
ImpEpA
（current）A Forward active energy(kWh)
float
2
R
1022H
ImpEpB
（current）B Forward active energy(kWh)
float
2
R
1024H
ImpEpC
（current）C Forward active energy(kWh)
float
2
R
1026H
NetImpEp
（current）Net Forward active energy(kWh)
float
2
R
1028H
ExpEp
（current）Total Reverse active energy(kWh)
float
2
R
102AH
ExpEpA
（current）A Reverse active energy(kWh)
float
2
R
102CH
ExpEpB
（current）B Reverse active energy(kWh)
float
2
R
102EH
ExpEpC
（current）C Reverse active energy(kWh)
float
2
R
1030H
NetExpEp
（current）Net Reverse active energy(kWh)
float
2
R
Note 1：When the ratio of the voltage transformer is 1, the data of read voltage transformer ratio
register UrAt is 10. When the ratio of voltage transformer is 1, ignore the above
table(UrAt×0.1).
Note 2：Single-precision floating point adopts standard IEEE754 format, total 32 bit(4 word). The
single-precision floating point mode is assumed to be ABCD(high type in the front, low byte
behind).
Note 3: The table only give the regular correspondence address. If you need the primary data address
and other addresses, you can call for the detailed communication protocol.
5.4. Energy measurement function
The horizontal axis of the measurement plane represents the current vector I (fixed on the
horizontal axis), and the instantaneous voltage vector is used to represent the current power
transmission. Compared with the current vector I, it has phase angleφ.
The counter-clockwise direction φangle is positive. A schematic diagram of the four-quadrant is
shown in Figure 6

CHINT DTSU666-CT Specifications

General

Brand	CHINT
Model	DTSU666-CT
Category	Measuring Instruments
Language	English