YTZJ-1 Special support for drilling monitoring

YTZJ-1 intelligent electric power monitor is a three-phase electric power measuring instrument based on 16-bit single-chip microcomputer and direct AC sampling. And other conventional instruments such as indicator and indicator, frequency meter, power factor meter. Powerful communication function, with optically isolated RS-485 communication interface, and support Modbus-RTU standard communication protocol. Mainly used for high-voltage switchgear feeders and low-voltage switchgear main incoming lines. Product photos are shown in Figure 6 on the back cover.


l Function description
w Three-phase current, three-phase voltage, three-phase line voltage
w Three-phase active power, total active power, three-phase reactive power, total reactive power
w Three-phase apparent power, total apparent power, three-phase power factor, total power factor
w Active power, reactive power, apparent power, frequency, zero sequence current
w Electricity value, electric energy demand, multi-rate electric energy measurement
w RS-485 communication interface, Modbus-RTU standard communication protocol
w Optional 1 relay alarm output and 2 communication output.
l Main technical indicators
w Working power: 85 ～ 265V AC / DC
w Working environment: Standard type: -10 ℃ ～ + 55 ℃, Wide temperature type: -25 ℃ ～ + 75 ℃
w Accuracy: current, voltage: 0.5 level; power, power factor, active energy level 1.0;
Reactive power, zero sequence current 2.0 level; frequency 0.1 level
w Analog input: rated voltage 57V, 100V, 220V, 380V, others (customized); rated current 5A, 1A
w Overload capacity: voltage 1.2 times / continuous, 2 times / 5 seconds; current 2 times / continuous, 10 times / 5 seconds
Note: The user must specify the system wiring system (three-phase four-wire / three-phase three-wire), voltage (57V / 100V / 220V / 380V), and current (5A, 1A) when ordering.
2 Device characteristics
Display and keyboard operation:
YTZJ-1 adopts dot-matrix liquid crystal display. All parameters are displayed in categories and equipped with "Cancel", "Value", "Shift", and "OK" buttons. Users can press YTZJ-1 only by pressing the button. Perform simple operations.
Communication protocol
YTZJ-1 adopts the international standard Modbus-RTU protocol for networking. It can also use 101 protocol, PILOT protocol or other upper computer-specific protocols; it has an isolated RS-485 communication interface, and the maximum communication distance is 1200 meters.
With the help of RS-485 communication interface, all measurable parameters can be obtained through remote monitoring system, and some settings of YTZJ-1 can be changed through remote monitoring system.
parameter settings
All parameters are set directly by digital input, which simplifies the input operation. The system parameters have password protection function. The system parameters include: communication address, communication baud rate, PT and CT ratio, multi-rate period, etc .; electricity and system parameters. With power saving function.
Dimensions and terminal definition (120mm * 120mm * 115mm, 114mm * 114mm)