Dalian FengHeRiLi Electric Co.,Ltd.

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What's Our Product

Product Center

Design, production and sales of power sensors, dry-type transformers, dry-type reactors

Sensor

Instrument transformer

Electronic instrument transformer

reactor

Transformer

Voltage sensor

This device is a highly stable current sensing power supply for power systems. Its output voltage is DC14V/15V, DC24V. It has battery charging current limiting protection and battery undervoltage shutdown functions. This series of CT power supplies uses direct energy harvesting AC/DC conversion technology, supplemented by power status monitoring and a dedicated energy harvesting current transformer, making the entire CT power supply system small in size and high in conversion efficiency. It meets the requirements of safe power supply under various harsh conditions such as grid large current surges and load switching. It can be widely used in cable and overhead fault indicators.

Leakage current sensor

Hall current sensor

Passive voltage sensor

This source-free voltage sensor converts a measured 0~2000V DC voltage into a 0~+10V DC voltage signal output. The input and output (i.e., primary and secondary sides) are completely isolated, and no additional power supply is required. It features simple wiring, easy installation, small footprint, high accuracy, and high safety. It is especially suitable for high-voltage DC measurement and control in fields such as rail transit, power grids, and industrial automation where power supplies are unavailable.

DC measuring device

This voltage sensor is suitable for the isolated and precise measurement of AC, DC, and pulsating voltages, with complete insulation between the primary and secondary sides during measurement. Main applications include: variable frequency speed control devices, inverters, UPS uninterruptible power supplies, SMPS switching power supplies, electric locomotives, power grid monitoring, etc.

QKSc

Starting reactor

When an AC asynchronous motor starts up under rated voltage, the initial starting current is very large, often many times (generally 5-7 times) the rated current. To reduce the starting current and avoid affecting the power grid, the AC asynchronous motor is usually started by reducing the voltage. Common voltage reduction methods include using reactors or autotransformers. The starting process of the AC motor is very short (generally a few seconds to two minutes). After starting, the reactor or autotransformer used for reduced-voltage starting is removed. This product is designed according to the starting characteristics of high-voltage asynchronous motors and generally matches motor power of 220-1400kW.

isolation transformer

SG series isolation transformers not only have transformer functions in the power grid, but also isolate harmonic interference from the power grid to equipment, protecting machines from heat generation and extending the lifespan of insulation materials. SG and DG series dry-type isolation transformers are widely applicable to various AC 50/60Hz power supply occasions. Various input and output voltages, connection groups, tap positions, winding capacity distribution, secondary winding configuration, and whether a protective chassis enclosure is required can all be designed and manufactured according to user requirements. The external dimensions can be customized according to user requirements.

control transformer

BK series control transformers are suitable for circuits with 50-60Hz voltage up to 500V, typically used as power supplies for machine tool control electrical appliances, local lighting, and indicators. This type of transformer can be divided into shell type according to its structure and vertical type according to its installation method. Dimensions can be customized according to user requirements.

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Application Area

Application Areas

Electric Power

New Energy

Locomotive

Ship

Metallurgy

Enterprise Advantage

Enterprise Advantages

Technical Strength

Since its establishment in 2012, the company has been committed to designing and developing various new energy-saving and environmentally friendly electrical products.

Certifications

Multiple products have obtained certification from the National Quality Inspection Center.

Intellectual Property Library

Possesses one invention patent and over ten utility model patents

Global Projects

With the advancement and development of the industry, the company is gradually moving towards the high-end market.

Customer Support

Perfect service system to help solve various problems encountered during product use in a timely manner.

Engineering Customization Services

The company undertakes custom product services.

Who We Are?

About Us

26 years in the professional power transmission and distribution supporting field

Dalian Fenghe Rili electric co., ltd. is located in Pulandian District, Dalian, the "capital of instrument transformers in northern china". it has a modern production base of 20,000 square meters. it is a high-tech enterprise specializing in the design, development, production and sales of 35KV and below transformers, electronic transformers, sensors, transformers, reactors and other products. Since its establishment in 2012, the company has been committed to designing and developing various new types of energy-saving and environmentally friendly electrical products, with the goal of meeting customer needs, constantly improving production processes and technologies, and actively cooperating with customers to develop new products, helping customers to achieve product innovation, improve product performance and competitiveness, and many products have been certified by the national Quality inspection center. the company adheres to the business philosophy of quality-oriented and customer-fi rst. Strict control is carried out on product design, raw material procurement, production and manufacturing, and product testing to ensure the safety and reliability of the products.

2012

Company Established

Industry Experience

20000 ㎡

Area Covered

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What's News?

News Center

2026

05-29

2026 Ultimate Guide to Current Sensor: Types, Selection & Industrial Applications

This 2026 practical guide breaks down core knowledge of current sensors, covering working principles, mainstream types, step-by-step selection rules, common troubleshooting and real industrial application cases. Based on 15+ years of R&D experience of FHR Electric, it helps engineers cut configuration cost and boost measurement accuracy for different project demands.

2026

05-26

Exploring the Latest Trends in Current Sensor Technology

Dive into the evolving landscape of current sensor technology and its applications in various industries.

2026

05-23

Understanding Current Sensors: Your Go-To Guide for Common Queries

Discover everything you need to know about current sensors, their functions, applications, and troubleshooting tips.

2026

05-20

Understanding the Mechanics of Current Sensors

Explore how current sensors work and their significance in modern technology.