Communication remote transmission intelligent relay power supply

What should I do if the power supply line is long and the voltage is low? Solving Industry Pain Points for You - Intelligent Relay Power Supply
220V/380V long-distance power supply and distribution equipment - Intelligent relay power supply
How to solve low voltage of 220V/380V? -------Intelligent relay power supply, reliable quality
1. Subverting traditional technology and solving pain points in the low-voltage remote supply (remote transmission) industry
2. Save engineering investment
3. Optimized the construction and design plans for the project
4. Safe, intelligent, and energy-efficient

1、 Preface
In real life and production places, due to the distance of electrical equipment from power sources, long transmission lines, and low voltage at the end of the lines, it is common for electrical equipment to be damaged or unable to function properly. In order to solve the problem of low terminal voltage, most users or power supply departments currently adopt solutions such as increasing the cross-sectional area of transmission cables or building additional substations, but this will significantly increase investment! In certain special places such as aerospace workshops, mining tunnels, underwater tunnels, long mountain tunnels, subway shield sections, remote rural communication base stations/villages/islands, highways, large industrial and mining enterprise workshops, even at the cost, there are many technical limitations. In response to the pain point of "long-distance low-voltage transmission" that troubles the industry, our technical personnel have successfully developed the "AC remote transmission intelligent relay power supply", which adds an optional solution for technical experts in the industry when determining long-distance transmission plans. The transmission scheme of configuring "AC remote transmission intelligent relay power supply" can not only reduce investment costs, but also reduce line losses during equipment operation.
2、 Overview
The 3H AC remote transmission intelligent relay power supply series products are specially developed for long power supply lines and low terminal voltages. They include voltage compensation, boosting, isolation, filtering and other units, and are multi-functional intelligent low-voltage solution devices. They integrate energy-saving technology, intelligent voltage balancing and boosting technology, dynamic filtering and power factor compensation technology, microcomputer magnetic balance technology, intelligent power remote monitoring technology, etc.
The main internal components of 3H, such as the magnetic balance coil, use H-level insulation, and the microprocessor chip and corresponding electronic circuit adopt contactless packaging, with strong environmental adaptability and high reliability.

3、 Product Introduction
1. Main functions
◆ Boost remote transmission
It is recommended that the power supply distance of each intelligent relay power supply should not exceed 500m and can be installed in a chain. It is generally recommended to install it in the "equal division" position of the power supply and distribution line, which can automatically detect the line voltage and the terminal voltage at the installation point. Through closed-loop control, it can automatically compensate, balance and increase the terminal voltage, so that the terminal voltage is basically kept near the set voltage value. Special circumstances, please specify when placing an order.
◆ Energy conservation and consumption reduction
One of the characteristics of low voltage is that the voltage drops rapidly during long-distance transmission, and as the terminal voltage decreases, the circuit current will correspondingly increase. The loss of transmission lines is proportional to the square of the current, therefore, maintaining the terminal voltage near the rated voltage can effectively reduce the energy loss on transmission lines.
◆ Bypass control
Once the internal boost system of the intelligent relay power supply fails or the terminal voltage is abnormal, it will automatically bypass and keep the main power supply line unobstructed.
◆ Intelligent control
It can receive network detection from the upper computer through the built-in RS485, RS232, and RJ45 communication interfaces, and can also operate independently and automatically without the upper computer.
◆ Multiple internal protections
Equipped with overload, overvoltage, undervoltage, short circuit, phase loss, phase sequence, and over temperature protection.
◆ Multi channel electricity collection
3 channels (voltage, current, reactive power, power factor), total power accumulation, can be displayed locally or collected by the monitoring center through the internal network.
Power factor compensation
Can be equipped with power factor compensation capacitors (optional).
◆ Harmonic filtering
It can suppress most of the transients and surges generated by the power system, eliminate resonance waves, clean the power grid, and reduce energy consumption.
2. Product series and usage locations
① Product series
The 3H communication remote transmission intelligent relay power supply products are divided into 3H-T series, 3H-L series, and 3H-S series.
② Adapt to the Place
3H-T series: applied in places with high fire prevention requirements, such as mining tunnels, subways, aerospace workshops, etc;
3H-L series: applied in low-voltage power grids, communication base stations, highways, etc;
3H-S series: applied in places where safe voltage (36V) is used, such as damp workplaces, underground cable interlayers, railway train maintenance pits, large breeding farms, etc.
4、 Product Structure and Principle
This product consists of multiple special magnetic balance devices and contactless electronic circuits. It also integrates phase adjustment unit, voltage compensation boosting balance unit, power isolation filtering unit, power factor compensation unit, surge factor compensation unit, surge protection unit, remote monitoring and end data feedback unit, etc. The product system and structural principles are as follows: