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Shanghai Mingxing Electric Co., Ltd
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 Model Number |
MGL30M |
* Used for all kinds of switch cabinets in 400V power system
* Metering data including 3A, 3V, kW, kVar, cosφ, kW/h, kVar/h.,etc
* With three-circuit digital input and three-circuit output relay
* Three rows of LED display each metering parameter
* Standard Modbus-RTU or DeviceNet agreement, easy for establishing network
* Standard enclosure design for convenient installation
A.) Application as following:
1.) MGL30 power metering meter is widely used in monitor & control field of power system, has high performance-price ratio.
2.) MGL30 power metering meter can directly substitute normal metering index meter, metering meter and relevant assistant unit.
3.) MGL30 power metering meter is applicable for each kind of control system, SCADA system and energy management system.
B) Characteristic
1.) Multi-function
* Integrate ampere-meter, voltage meter, power meter and energy meter into a small enclosure, convenient installation and holding little space.
* Strong communication fuction, easy for establishing network
* Have digital input and output relay function, convenient for user to connect cabinet signal and output control directly.
* Have current and voltage protection, guarantee the safe operation of cabinets.
* SOE with time symbol is the basis for user to analyze events.
* Inspection with CPU temperature is convenient for user to know the operation of device.
* Have software and hardware real-time self-diagnosis and alarm function
2.) Electric-energy metering
* Can metering active electric-energy (kW/h) and reactive electric-energy (kVar/h), have freeze and electric-energy ?clear to zero? function
* Power cut won?t effect the metering of electric-energy
3.) High accuracy
* High performance 16-digit SCM, 12-digit AD sampling
* Software temperature compensation avoids the temperature effect to metering accuracy
4.) Setting and operation
* Parameter setting can be done locally, can also be done through control center
* No need to restart device after finishing parameter setting
5.) Communication
* Adopts standard MODBUS-RTU agreement, high efficiency and strong reliability
* Supports two kinds of communication mode: RS485 and CAN
6.) Multi-application
* Widely used for all kinds of low voltage switch cabinets
* Can be used separately, can also be established into network to use according to multi-kinds of typical schemes provided by our company.
7.) Appearance
* 96*96mm panel dimension, only 60mm of meter-body depth,standard meter installation.
* ABS enclosure material makes the meter beautiful, portable and applied.
* Three rows of four-digit LED display and menu control.
* Debugging software has strong function and is easy to operate.
C.) Technical parameter
1.) Power supply
* Rated operation power supply AC 220V
* Power supply voltage range AC 85V～265V
* Power consumption ≤3W
* Rated frequency 50Hz or 60Hz
2.) AC input rated value
* Current transformer 5A，power consumption＜0.5VA/phase
* Voltage transformer 220V，power consumption＜0.2VA/ phase
* Frequency 50Hz or 60Hz
3.) Metering range and accuracy
* Three phase current Accuracy: class 0.2 Maximum overload: 2 times
* Three phase voltage Accuracy: class 0.2 Maximum overload:1.5 times
* Active power Accuracy: class 0.2
* Reactive power Accuracy: class 0.5
* Power factor Accuracy: class 0.5
* Active electric energy Accuracy: class 0.5
* Reactive electric energy Accuracy: class 1.0
* Frequency ±0.02Hz
* Temperature ±1.0°C
4.) Overcurrent protection
* Protection current range (20%～200%)xIn Error <±1%
* Rapid-breaking trip time ≤80ms
* Time delay protection time setting range: 0.1s～600.0s
5.) Output of outlet relay
* Resistivity 2.5A 250VAC
* Electric life 50,000 times
6.) Digital input
* Digital Input Voltage DC12V
* Input resolution Minimum 2ms
7.) Network Communication
* Put maximum 64 devices at one bus.
* MODBUS or DeviceNet agreement is selectable (specify when place the order)
8.) EMC characteristic
* Insulation Impedance ≥10MΩ
* Insulation Intensity 2.5kV，1min
* High-frequency Interference
Series mode 1.5kVP，1min
Common mode 2.5kVP，1min
* Instantaneous Pulse cluster 4.0kVP，1min
* Surge current interference 4.0kVP，1.2/50μs
* Static discharge 8kV
* Pulse Voltage 5kV，1.2/50μs
9.) Work Condition
* Operating Temperature -20～+60°C
* Humidity 5%～80% without condensed dew
* Temperature Variability ＜25°C/h
* Atmospheric Pressure 70～106kPa
* Ambient Environment Out of reach to explosive & corrosive conductive dust,enzyme bacteria and heavy vibration
10.) Other Technical Data
* Total weight ≤ 1 kg
* Mean time between faults ＞ 50,000 h
D.) Selection Guide
MGL30 power metering meter is classified into the following five types:
* MGL30M multi-function meter
* MGL30P power meter
* MGL30V3 three-phase voltage meter
* MGL30A3 three-phase current meter
* MGL30A1 single phase current meter
E.) Communication Mode
1.) CPU debugging software
MGL30 debug software attached with device can debug and setup all MODBUS interface devices of this series. Detailed methods please refer to ?user manual of MGL30 debug software?.
2.) Power carrier wave
Collocate low voltage power line carrier wave module for each MGL30 power metering meter, thus to realize low voltage power carrier wave communication and establish system through power line.
3.) RS485 bus
RS485 bus network can be established at the centralized area of switch cabinets. Please use shielded twisted-pair for RS485 bus, and reliable earthing, the line length less than 1km.
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