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3 Phase AC Mutual Inductance Power Quality Detector
JSY-MK-301 three-phase mutual inductance power quality detector fully meets the relevant technical requirements of the 0.5S level three-phase active energy meter in the IEC 62053-21 national standard. It can directly and accurately measure the voltage, current, power, power factor, quantity, and total amount of electrical parameters in the rated frequency of 50HZ or 60HZ three-phase AC power grid. With built in 2 RS485 communication interfaces, 1 switching output (optional), 1 matrix LCD display output port, and MODBUS-RTU communication protocol facilitate connection with various AMR systems.
JSY-MK-301 can be widely used in energy-saving renovation, power, communication, railway, transportation, environmental protection, petrochemical, steel and other industries to monitor the current and power consumption of AC equipment.
Features:
1. Capture three-phase AC electrical parameters such as voltage, current, power and energy etc.
2. Adopting a dedicated measurement chip and effective value measuring method, with high measurement accuracy.
3. With 2 RS-485 communication interfaces.
4. Standard Modbus-RTU communication protocol, which has good compatibility and is convenient for programming.
5. RS-485 communication interface with ESD protection circuit.
6. Multiple power supply options available.
7. Wide working voltage AC80-240V or DC5V, and equipped with anti reverse-wiring protection function, connecting the reverse power supply will not damage the module.
8. Using industrial grade chips, built-in watchdog, and equipped with comprehensive lightning protection and anti-interference measures to ensure reliability.
9. High isolation voltage, withstand voltage up to AC: 2000V.
10. Optional 1 switching output.
11. LCD display interface optional, capable of real-time viewing of electrical parameters.
12. Solid-core or split-core current transformer optional.
13. 35mm standard DIN rail installation, or screw mounting with a hole spacing of 104 x 70mm.
Specifications:
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Product Model |
JSY-MK-301 |
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Three-phase AC Input |
Voltage Measuring Range |
100V, 220V, 380V etc. optional. |
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Current Measuring Range |
5A, 20A, 50A, 100A, 200A, 300A, 400A, 500A etc. and external split-core current transformer optional. |
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Signal Processing |
Using dedicated measuring chip with 24 bit AD sampling. |
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Overload Capacity |
Current 1.2 times measuring range is sustainable. Instantaneous(<200mS) current 5 times, voltage 2 times, measuring range will not be damaged. |
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Input Impedance |
Voltage channel＞1KΩ/V, current channel ≤ 100mΩ. |
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Switching Output |
1 relay open circuit output. Voltage, current overload alarm protection output function |
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Communication Interface |
/ |
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Interface Type |
2 RS-485 interfaces |
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Communication Protocol |
MODBUS-RTU protocol |
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Data Format |
Can be set by software, "n, 8,1", "e, 8,1", "o, 8,1", "n, 8,2" |
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Communication Rate |
The baud rate of RS-485 communication interface can be set to 1200, 2400, 4800, 9600Bps, Local RS-485 interface baud rate is 4800bps, data "n, 8,1" format by default. |
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Communication Data |
Electrical parameters such as voltage, current, power and energy, refer to the Modbus Data Log list. |
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Measurement Accuracy |
Voltage, current, power: ± 1.0%; Active power level 1 |
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Isolation |
DO/RS-485 interface, isolated from AC power supply, voltage input, and current input, isolation withstand voltage 2000VDC. |
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Power Supply |
Optional 100V, 220V, 380V, voltage line 100V-380V |
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When powered by DC+5V, the peak voltage shall not exceed 5.5V, typical power consumption ≤ 2W. |
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When powered by AC220V, the peak voltage shall not exceed 265V, typical power consumption: ≤ 2W. |
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Working Environment |
Working Temperature |
-20~60 ℃ |
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Storage Temperature |
-40~85 ℃ |
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Relative Humidity |
5-95%, no condensation (at 40 ℃) |
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Altitude |
0-3000 meters |
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Environment |
No explosions, corrosive gases or conductive dust, no significant shaking, vibration or impact. |
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Temperature Drift |
≤ 100ppm/℃ |
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Installation Method |
35mm DIN rail or screw fixing installation with hole spacing 104x70mm |
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Product Size |
116x94x58mm |
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Shenzhen JSY Technology Co., Ltd.
Power Metering and EV Charging Module &Solution OEM /ODM Expert