In modern buildings and industrial facilities, the stable operation of electric motors, lighting, Air compressors as well as heating and ventilation systems depend on precise and reliable flow control. As the main current sensors, low-voltage current transformers are responsible for converting large primary currents into small secondary signals. To this end, we have commissioned the LMK-120 low-voltage current transformer, a measuring device designed for the in-depth integration of the above application scenarios.
1. Engine control scenario: Dealing with impact loads and protecting equipment safety
1.1 Current Air Printer Control
In automatic production workshops, the air compressor generates an overflow several times higher than the permissible value at the time of commissioning. The LMK-120 is mounted in its distribution circuit and accurately captures the waveform of the pulse current with a core made of high-quality silicon steel. When the current is faulty, it transmits a signal to protect the motor as a current sensor, to quickly ensure protection from overload, To prevent damage and ensure the continuous operation of the production line.
1.2 Diagnosis of the health condition of a large fan
In large factories, the main fan must run for 24 hours. The LMK-120 is supplied in series with a fan control cabinet as a measuring current transformer and constantly controls the three-phase current balance. If storage consumption leads to irregular current fluctuations, it can accurately detect changes, issue warnings, and perform predictive maintenance.
2. Heating and ventilation system scenario: accurate measurement, improve energy efficiency
2.1 Measurement of energy consumption for microclimate
In data centers, the energy consumption for precision air conditioning determines the PUE value. The LMK-120 150/5 has been installed as a professional HVAC current transformer in a distributor air conditioning box, which independently controls the workflows of compressors, Fans and electric heaters monitored. The data is transferred to the building automation system and used by executives to improve the company’s strategy and reduce overall energy consumption.
2.2 Control of connection of clean air unit and cooling water pump
In commercial complexes, the operation of clean air units and cooling water pumps has a direct impact on the indoor environment. The LMK-120 returns the measured current to the PLC. When the water pump drops due to a clog, the system automatically starts the spare pump to ensure stable operation of the central air conditioning.
3. Lighting System Scenario: Distributed Control and Enabling Intelligent Management
3.1 Remote control of light circuits in shopping malls
Light circles are widespread in large shopping centers. The low-voltage current transformer LMK-120D mounted with a DIN rail can be quickly switched into the distribution floor boxes to monitor the current for any industry in real time. As a built-in low-voltage power divider, it can be easily installed in limited spaces. Once the circuit is faulty, the system immediately recognizes the fault location and improves operation and maintenance performance.
3.2 Subpositions of energy consumption for an intelligent lighting system in the office area
In smart buildings, lighting energy consumption must be calculated precisely depending on the area. LMK-120 was installed in a good ground distribution and the current data is linked to the energy management system. Drivers can view an energy consumption report at any time to ensure precise assistance in energy-saving renewal.
4. Mixed load scenario: Compatibility with many scenarios, simplified selection
4.1 Multifunction applications for small distribution boxes
In a small workshop, the distribution box can simultaneously contain lighting, motor and air conditioning. The LMK-120 offers a wide range of variable ratios from 20/5 to 1500/5 that adapt flexibly to different needs. Its integrated construction and the mounting of the 35 mm rail make maintenance extremely comfortable.
In short, the LMK-120 low-voltage current transformer is deeply integrated into the operation of electric motors, lighting, air compressors and HVAC systems. It offers accurate measurements, stable performance and flexible installation, to improve energy efficiency and protect the reliable operation of modern buildings and industry. Your choice means choosing a professional partner who understands the scenario and requirements.
Compay: WENZHOU HEYI ELECTRICAL CO.,LTD
Brand: HEYI/ASCT
Contact: Bethy
E-mail: heyi@heyiele.com
Tel: 86-13968747975
