YTZJ-1 type intelligent power monitor is based on 16-bit single chip microcomputer, direct AC sampling three-phase power measuring instrument, with complete functions, economic and practical, high reliability, strong anti-interference ability and many other advantages, can replace a variety of transmitters and indicating instruments, frequency meters, power factor meters and other conventional instruments. Powerful communication function, with photoelectric isolation RS-485 communication interface, and support Modbus-RTU standard communication protocol. Mainly used for high voltage switchgear feeder and low voltage switchgear total inlet line. See Figure 6 on the back cover for product photos.
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 Maximum value of electricity, electric energy demand, multi-rate electric energy metering
w RS-485 communication interface, Modbus-RTU standard communication protocol
w Optional 1 relay alarm output, optional 2 communication output.
l Main technical indicators
w Working power supply: 85 ~ 265V AC/DC
w Working environment: Standard type: -10℃ ~ +55℃, wide temperature type: -25℃ ~ +75℃
w precision: Current, voltage: 0.5 level; Power, power factor, active power level 1.0;
Reactive power, zero sequence current 2.0 level; Frequency class 0.1
w Analog input: rated voltage 57V, 100V, 220V, 380V, other (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 needs to specify the system wire system (three-phase four-wire/three-phase three-wire), voltage (57V/100V/220V/380V), current (5A, 1A) when ordering.
2 Device Features
Display and keyboard operation:
YTZJ-1 adopts dot-matrix LCD display, all parameters are classified display, and equipped with “cancel”, “value”, “shift”, “confirm” buttons, users only need to press the button, you can perform simple operations on YTZJ-1.
Communication protocol
YTZJ-1 adopts international standard Modbus-RTU protocol networking, and can also adopt 101 protocol, PILOT protocol or other PC special protocols; With isolated RS-485 communication interface, the maximum communication distance is 1200 meters.
With the RS-485 communication interface, all measurable parameters can be obtained through the remote monitoring system, and through the remote monitoring system to make some changes to the YTZJ-1 Settings.
Parameter setting
All parameters are set by digital direct input, which simplifies the input operation. The system parameters have password protection function, including: communication address, communication baud rate, PT and CT ratio, multiple rate period, etc. Power and system parameters Save power failures.
Outline dimensions and terminal definition (outline 120mm120mm115mm, opening 114mm*114mm)
