AT181Y AC/DC Digital Voltage and Current Meter, Digital Analog Panel Meter

Product Description

 

Product Description

AT181Y Digital Three Phase Multi-functional Power & Harmonic Analyzer is an ideal device for power monitoring. The meter can measure and display current, voltage, frequency, active power, reactive power, apparent power, forward and reverse active power, forward and reverse reactive power, power factor, compound rate, 2-31th harmonics in the power grid. It is suitable for the distributed detection of transformers, generator sets, capacitor sets and motors, and the on-site monitoring of power grids and automation control systems.

This series of multi-function power meters can replace many traditional analog or digital measuring instruments (such as ammeter, voltmeter, power consumption meter, power factor meter, frequency meter, etc.), which can greatly reduce the system cost, facilitate field wiring and improve the reliability of the system. The multi-function power meter is equipped with a serial port, allowing connection to an open computer network; the application of Modbus communication protocol makes it easy for the computer to program settings or read data.

Main features:

• Highly accurate power measurement
• Modular design, flexible configuration of each function
• Adjustable voltage and current ratio
• Three-phase voltage/current total harmonics and 2nd~31st sub-harmonic analysis
• Parameter settings are permanently stored in power failure
• Support RS-485 communication
• Adopt AC/DC dual-use power supply, high and low voltage isolation
• LCD display
• With various sizes, easy installation and wiring

 

Product Parameters

Measurement and metering
Voltage	Phase voltage, line voltage
Current	Three-phase current
Active power	Split-phase and total active power
Reactive power	Split-phase and total reactive power
Apparent power	Split-phase and total apparent power
Power Factor	Phase-to-phase and total power factor
Frequency	45-60Hz
Harmonic Analysis
Voltage	Three-phase voltage harmonics
Current	Three-phase current total harmonics
Subdivision	2~31th subharmonic
Power measurement
active power	forward/reverse active power
Reactive power	Positive/reverse reactive power
Communication function
Communication protocol	MODBUS-RTU
Communication mode	RS485

Parameters			Value
Applicable grid			3 phase 4 wires, 3 phase 3 wires
Working power		Voltage range	AC/DC85~265V;DC18V~72V(Optional)
		Power consumption	<5VA
Accuracy Class			Active Power Class 1, others Class 0.5
Input	Voltage	Rated	AC 100V,220V,400V
		Overload	1.2 times continuous, 2 times (10s)
		Power consumption	<0.4VA/Phase
		Impedance	≥200kΩ
	Current	Rated	AC 5A(0.02A-6A)
		Overload	1.2 times continuous, 10 times (10s)
		Power consumption	<0.2VA/Phase
		Impedance	≥0.1Ω
	Frequency		45Hz~65Hz
	Switching input		Dry contact input, photoelectric isolation
Output	Switching output		Relay output(Volume:5A/250VAC,5A/30VDC);   can set any alarming power, default remote control
	Analog output		0~20mA/0~5V(Can be set)
	Digital communication interface		RS485/Modbus-RTU
	Pulse output		1~2 channels electrical energy pulse,Four-quadrant power metering
Harmonics			Voltage, current total harmonics
			Voltage, current 2-31th sub-harmonic
Environment	Temperature		Operation temperature: -20ºC~55ºC, Storage: -25ºC~70ºC
	Humidity		≤90%RH, non-condensing, no corrosive air
	Altitude		≤2500m
Insulation resistance			≥100MΩ
Frequency withstand voltage			2kV/1min (test voltage is AC rms, between input/shell/power supply)
IP Class			IP40(Panel IP52)
Average trouble-free operation time			≥50000h
EMC electromagnetic compatibility test	Electrostatic discharge immunity test		GB/T 17626.2-2006:test level 4, test voltage 8kV
	RF electromagnetic field immunity test		GB/T 17626.3-2006:test level 3, test field strength of 10V / m
	Fast transient pulse group test		GB/T 17626.4-2008:test level 2, current voltage 1kV, other 500V
	Surge (shock) immunity test		GB/T 17626.5-2008:test level 4, test voltage 4kV
	RF field induction conducted harassment immunity test		GB/T 17626.6-2008:test level 3, test field strength of 10V / m
	Voltage transients, short interruptions and voltage changes in the immunity test		GB/T 17626.11-2008:current and voltage test error qualified
	Oscillation wave immunity test		GB/T 17626.12-1998:Class B ITE test, qualified