Climate and cooling systems are accelerating their shift towards smart factories, and without the basic component of current transformers, energy cannot be accurately monitored. Choosing the wrong processor can lead to inaccurate measurements, incorrect interference, and even security risks. This article combines Wenzhou Heyi Electric Co., Ltd. product catalogue to answer five basic selection questions.
1. Factory Intelligent Power Control: How to choose the current transformers
1.1 Main decision points
The renovation of the factory must meet the requirements of "uninterrupted assembly", taking into account the high precision and wide spectrum.
1.2 Recommended Plan
Use of split core current transformers of the HK or DP series. Current coverage ranges from 5 amps to 8,000 amps and can be adapted to different types of air conditioners. The accuracy can reach the level of 0.5, which guarantees the reliability of the energy management system data. The open and closed construction can be uninterruptedly mounted in the power supply, which really achieves uninterrupted renewal.
2. Built-in electrical cabinet: how to choose small current transformers
2.1 Main decision points
The space inside the cabinet is limited, so it is necessary to choose products with small sizes and light wiring.
2.2 Recommended solutions
The KCT series with a low voltage output of 0.333 V is the best solution. This series was specifically designed for small spaces and is characterized by a self-blocking structure. The cloud meets the UL94-V0 standard for the flame retardant. The output is a signal with a low voltage of 0.333 V that can be conducted with thin cables, saving space and improving safety. It covers a range from 5 amps to 400 amps to meet the general requirements for the load of control circuits.
3. High precision measurement: how to choose the 0.2S level carrier
3.1 Main decision points
When used to calculate electricity bills or to measure sub-positions of the tenant, it is necessary to: to ensure the accuracy of the entire set, especially under low loads.
3.2 Recommended Plan
The high-precision current transformer of the ABO series achieves an accuracy of 0.2S and meets the standards of the commercial equation. The transparent cover and design of the lead sealing opening facilitate daily inspections and effectively prevent the theft of electricity. If the ratio of the main carrier to the counter does not match, the middle carrier can be used to convert the signal with minimal loss of accuracy.
4. Assembly without interruption: Interchangeable processors can be achieved
4.1 Main decision points
The switching on of the main cooling units cannot be turned off and the installation process must reach zero shutdown.
4.2 Recommended Plan
The flexible Roche tweezers of the FRC series offer the ultimate solution. It can easily be flexible around copper cables or copper rods and adapt to various narrow and irregular spaces. The non-magnetic design of the core ensures no direct electrical connection to the tested circuit and no fear of excessive loads. In combination with integrators G1 or G2, it can generate standard signals of 333 mV or 1 V, suitable for various monitoring devices.
5. PLC Control System: How to Choose Processors for Programmable Logic Controls
5.1 Selection
Programmable logically controlled analog units typically receive signals from 0 to 10 V or from 4 to 20 mA, and the choice is to ensure the compatibility of the signal.
5.2 Recommended Plan
Low-voltage output converters such as the KCT and HACT series include built-in sample resistors, which can generate a voltage of 0.333 V directly and are compatible with programmable input voltage units of the logic controller. For monitoring frequency devices, the hall effect sensors of the C2 and C3 series can detect frequent, alternating and pulsing fixed currents, Measure outputs from 0 to ± 4 V or dedicated signals with a response time of 5 microseconds and linearly up to 1% of the full range accurately.
6. Summary
The intelligent factory power control adopts HK or DP series, with wide range and high accuracy, and can be installed in the power supply without interruption. The KCT series is recommended for built-in electrical containers with small sizes and a low voltage output of 0.333 V. The ABO series is the preferred choice for high accuracy measurement, with an accuracy of 0.2S that meets the requirements of trade settlement. The FRC series is suitable for the uninterrupted energy conversion of main equipment with a flexible, safe and flexible design. Depending on the signal type, the monitoring PLC can select the type of low voltage generation of the KCT series or the holo effect sensors of the C2 and C3 series.
Wenzhou Heyi Electric Co., Ltd. offers a complete product range from miniprocessors up to 6000A high current switches, support individual needs and help build reliable and precise intelligent energy control systems.
Compay: WENZHOU HEYI ELECTRICAL CO.,LTD
Brand: HEYI/ASCT
Contact: Bethy
E-mail: heyi@heyiele.com
Tel: 86-13968747975
