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

25 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

2025

08-27

Fenghe Rili Electric cheers for employees' children's college admission and conveys the warmth and care of the company

2025

08-26

Unveiling the World of Transformers: From Working Principles to Practical Applications

Understand the working principle of transformers, their applications, and recommendations for selecting the appropriate transformer, enabling you to easily master this important equipment.

2021

11-09

New gas sensors enable fault early warning for electrical equipment

A high-tech enterprise has developed a new type of gas sensor suitable for electrical equipment. Based on nanomaterial sensing technology, this sensor can quickly detect multiple characteristic gases such as SF6 and H2, with a detection sensitivity reaching ppb level. When deployed inside equipment such as switchgear and GIS, it can real-time monitor the internal insulation status of the equipment and immediately trigger an alarm upon detecting abnormal gas concentration, providing an important basis for fault diagnosis of electrical equipment.

2022

01-10

Smart grid construction is accelerating, improving power system reliability

With the development of digital technology, the construction of smart grids in China is accelerating across the board. Power companies in many regions are actively deploying smart meters, sensors, and communication networks to build an intelligent management system covering all aspects of power generation, transmission, distribution, and consumption. By real-time monitoring of grid operation status, the smart grid can quickly locate faults and automatically isolate them, shortening power outage times by over 70%. In addition, it can achieve precise allocation of power resources and optimize the user's power consumption experience. It is expected that by the end of 2025, the coverage rate of smart grids in major cities nationwide will exceed 90%.

2021

11-12

Electrical enterprises collaborate with universities to jointly research new energy storage technology

To address the intermittency of renewable energy, multiple electrical enterprises and universities have engaged in deep cooperation to jointly develop new energy storage technologies. Both parties will focus on areas such as lithium-ion batteries, flow batteries, and hydrogen storage, and through industry-academia-research collaboration, overcome challenges such as low energy density, high cost, and short lifespan of energy storage systems. Currently, some projects have achieved phased results, with the energy density of new energy storage materials increasing by 40% compared to traditional materials. Once these technological achievements are industrialized, they will effectively enhance the power system's peak-shaving capability and promote the consumption of clean energy.

2021

11-12

A new type of high-precision current transformer has emerged, improving the accuracy of power monitoring.

Recently, an electrical technology company successfully developed a new type of high-precision current transformer. This product adopts advanced magnetic modulation technology and digital signal processing algorithms, with a measurement error controllable within ±0.1%, improving accuracy by 3 times compared to traditional transformers. It features wide-band response characteristics, capable of precisely capturing harmonic components in power systems, providing reliable data support for the safe and stable operation of the power grid, and has been piloted in several smart substations.

Service Hotline

+86-411-83117118

feherili@fhdq.com

Fax

0411-83167110

Address

No. 95, West Section, Century Road, Pulandian District, Dalian City, Liaoning Province

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