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Embedded 3 Phase Power Metering Module Accuracy level 1 Bidirection Measuring
JSY-MK-333 embedded three-phase power metering module is developed by JSY Technology using microelectronics technology and specialized large-scale integrated circuits, applying advanced technologies such as digital sampling and processing technology and SMT process, and with completely independent intellectual property rights. The technical performance of this metering module meets the relevant technical requirements of Class 1.0 three-phase active energy meters in the IEC 62053-2 standard. It can directly and accurately measure the voltage, current, power, power factor, active and reactive energy and other electrical parameters in a three-phase AC power grid with a rated frequency of 50Hz or 60Hz. This module is equipped with 1 RS485 communication interface, 1 TTL interface, and sampling MODBUS-RTU protocol, easy to connect with various AMR systems. It features good reliability, small size, light weight and easy installation.
JSY-MK-333 can be widely used in energy-saving transformation, EV AC charging station, power monitoring, communication, railway, transportation, environmental protection, petrochemical and steel to monitor the current and electricity consumption of AC equipment.
Features:
1. Capture 3 phase AC electrical parameters such as voltage, current, power and energy etc.
2. Adopting dedicated measurement chips and effective value measuring method, with high measurement accuracy.
3. With 1 RS-485 communication interface and 1 TTL communication interface (3.3V).
4. Modbus-RTU communication protocol, good compatibility and is convenient for programming.
5. RS-485 interface with ESD protection circuit.
6. Two power supply methods optional, DC3.3V or DC5-24V power supply.
7. Adopting industrial grade chips, built-in watchdog and equipped with comprehensive lightning protection anti-interference measures to ensure reliability.
8. High isolation voltage, up to AC 2500V.
9. Solid-core current transformers and split-core current transformers optional. (Note: Split-core CT are mainly used for industrial urban power grids, power transmission systems and rural project renovations. They are easy to install, do not require dismantling of the busbar and can also be operated on line without affecting the normal electricity consumption of customers. This saves a lot of manpower, material resources and financial resources for user renovation projects, and improves renovation efficiency.)
Specifications:
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Product Model |
JSY-MK-333 |
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Three-phase AC Input |
Voltage Measuring Range |
Three phase four wire input, 3x220/380V |
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Current Measuring Range |
50A, 100A, 250A etc. and external split-core current transformer optional. |
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Signal Processing |
Adopting dedicated measuring chip with 24 bit AD sampling. |
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Overload Capacity |
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 |
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Communication Interface |
Interface Type |
1 RS-485 interface and 1 TTL interface (3.3V) |
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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 of the two-way communication interface can be set to 4800, 9600, 19200, 38400Bps, and the default communication format is "n, 8,1", 9600bps. |
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Communication Data |
Multiple electrical parameters such as voltage, current, power and energy, as shown in the Mdobus Data Log list. |
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Measurement Accuracy |
Voltage, current, power: ± 1.0%; Active power level 1 |
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Power Supply |
When powered by DC3.3V, the peak voltage shall not exceed 3.6V. Typical power consumption: ≤ 20mA |
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When powered by DC5~24V, the peak voltage shall not exceed 30V. Typical power consumption: ≤ 20mA |
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Isolation |
Strong and weak electricity are isolated through transformers, isolation withstand voltage＞2500V |
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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 |
2.54mm pin welding |
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Module Size |
65x57x41mm |
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Shenzhen JSY Technology Co., Ltd.
Power Metering and EV Charging Module &Solution OEM /ODM Expert