DTSD/DSSD79 Type Three phase Electronic Multi functional Energy MeterDetailed product description：

1、 Product Overview
The DTSD/DSSD79 three-phase electronic multifunctional energy meter is an instrument designed and manufactured using large-scale integrated circuits, digital sampling processing technology, and SMT technology, based on the actual power consumption of industrial users.
This meter can accurately measure the active and reactive electrical energy, active and reactive power, voltage, current, frequency and other electrical parameters of three-phase forward and reverse directions, and process the data according to the corresponding rates and demand requirements. This table can be set with 4 rates, 4 time zones, 10 daily time periods, etc., and has RS485 communication interface and remote pulse output function.
Its performance indicators comply with the technical requirements of DL/T614-1997 "Multifunctional Energy Meter" and DL/T645-1997 "Multifunctional Energy Meter Communication Protocol" in the power industry standards for multifunctional energy meters.

2、 Main functions of DTSD/DSSD79 three-phase electronic multifunctional energy meter

One minute metering of positive and negative active energy, capable of two modes of metering.
Measure reactive power in four quadrants and total reactive power in both directions at 2 minutes, supporting 5 modes of total reactive power measurement.
Measure the maximum demand for forward and reverse active power at 3 minutes, as well as the time of demand occurrence.
4 has 4 rates, 10 daily time periods, 4 time zones, and 5 time period tables, supporting weekly repair days and holiday periods; There is also a backup rate period system.
5 has the functions of detecting and recording voltage loss, current loss, voltage qualification, and total voltage loss current.
Two RS485 interfaces can communicate with a PC or infrared communication with a handheld computer to complete programming and meter reading. Meter reading can also be manually recorded through an infrared remote control.
Display various parameter settings and measurement data through LCD.
8 can achieve parameter rotation, and the parameters and time of the rotation can be pre-set. The order of parameter rotation can also be set arbitrarily.
The 9-meter has forward active and reactive remote pulse output ports, with remote pulse constants of 6400imp/kW. h and 6400imp/kvar. h, and a pulse width of 80ms ± 20ms.
Measure the effective values of voltage, current, and current of phases A, B, and C, as well as the current frequency.
11 has programming prohibition function and demand reset function.
There are power outage meter reading batteries and clock batteries available, and the built-in power outage meter reading mode can be selected. Meter reading can be performed without an external DC power supply in the event of a power outage.
There are 7 types of load recording functions in 13, and the recording time interval can be selected in minutes.
14 has a 3-level authorization password protection function. In addition, multi-level security protection functions such as password unlocking (programming keys) can be set.