JGDMulti-function power meterIt is designed for the power monitoring needs of power systems, industrial and mining enterprises, public facilities, and intelligent buildings. It can measure all common power parameters, such as three-phase current, voltage, active and reactive power, electricity, harmonics, etc. Because the power meter also has a complete communication networking function, we call it a network power meter. It is ideal for real-time power monitoring systems.
The meter has a high performance-to-price ratio and can directly replace conventional power transmitters and measuring instruments. As an advanced intelligent and digital front-end acquisition element, this series of network instruments has been widely used in various control systems, SCADA systems and energy management systems.
Product standards
GB/T 22264.1-2008 Mounted digital display electrical measuring instruments – Part 1: Definitions and general requirements
GB/T 22264.7-2008 Mounted digital display electrical measuring instruments – Part 7: Special requirements for multifunctional instruments
GB/T 22264.8-2008 Mounted digital display electrical measuring instruments – Part 8: Recommended verification methods
GB/T 17215.322-2008 Alternating current measuring equipment—Special requirements—Part 22: Static active energy meters (0.2S and 0.5S)
GB/T 17215.323-2008 Alternating current measuring equipment—Special requirements—Part 23: Stationary reactive energy meters (Class 2 and 3)
DL/T 614-2007 Multifunctional energy meter
GB14287-2005 Electrical fire monitoring system
GB50045-95 Code for fire protection design of high-rise civil buildings
GB50054-95 Design Code for Low-Voltage Power Distribution
GB50096 Residential Design Codes
GB13955-2005 Installation and operation of residual current action protection device
GB50016-2006 Code for Fire Protection Design of Buildings
Model nomenclature
Performance characteristics:
High-precision measurement of three-phase voltage, three-phase current, active power, reactive power, apparent power, power factor, frequency and other electrical parameters
Forward and reverse active/reactive energy metering
Time-of-use electric energy metering, time-of-use electric energy timing meter reading
Measure the total harmonic distortion rate (THD) of three-phase voltage and three-phase current, and the odd harmonic component from 2 to 31
Provide digital tube or LCD display, local data query
The menus are intuitive and the keys are easy to use
The current and voltage conversion ratio are programmable
Provides multi-loop leakage current monitoring
Provide multi-loop control node, which can be used for alarm, trip and other control
Support fire-fighting linkage and remotely cut off the fault loop
Support RS-485 communication, Modbus-RTU protocol
It supports switching input, switching output, analog transmission output, and power pulse output
It is easy to install, simple to wiring, and small in engineering
Wide-range AC/DC universal power supply: AC/DC 80V~270V
It can complete the networking of a variety of communication software in SCADA and PLC
Technical Indicators
Measurement accuracy
Voltage 0.5 class
Current 0.5 class
Active power 0.5 class
Reactive power 0.5 class
Power factor 0.5 level
Frequency ±0.02Hz
Active energy 0.5S or 0.2S
Reactive energy level 1 or 2
Signal input
Wiring method: three-phase four-wire, three-phase three-wire
Rated voltage: AC 57.7V, AC 100V, AC 220V, AC 380V
Rated current: AC 1A, AC 5A
Overload Voltage: 1.2 times (continuous), 2 times/1 sec (instantaneous)
Current: 1.2x (continuous), 10x/5 sec (instantaneous)
Power consumption Voltage: <1VA/phase, Current: <0.4VA/phase
Impedance Voltage: >300kΩ, Current: <20mΩ
Frequency: 45~65Hz
Auxiliary power supply
Working range AC/DC: 80V~270V
Power consumption <4VA
Functional modules
Communication interface: Support 1 channel RS-485 communication, Modbus-RTU protocol
Baud rate: 1200~9600bps, default 2400 bps
Switching inputs support 4 dry junction inputs
Switching output Support 3 relay outputs, capacity: AC 250V/5A, DC 30V/5A
Transducer output Support 1 analog output: 0/4~20mA or 0~5/10V
Power pulse output Support 2 power pulse output, constant: 8000imp/KWh(Kvarh)
environment
Operating temperature: -10°C~+55°C
Storage temperature: -25°C~+70°C
Relative humidity ≤93%, no corrosive gas location
≤ 2500m above sea level
safe
Insulation resistance >100MΩ
AC withstand voltage AC 2KV
Electromagnetic compatibility performance
Electrostatic discharge level 4
Electrical fast transient burst class 4
Surge (Shock) Level 4
Dimensions
Frame size(mm) 120×120;96×96; 80×80；72×72
Cut-out size(mm) 111×111;92×92; 76×76；68×68
