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

06-19

2026 Complete Guide to High Precision Industrial Grade Voltage Sensor

This 2026 industry-focused guide elaborates core working principles, critical performance metrics, proper installation steps, regular maintenance protocols and common troubleshooting methods for voltage sensor products, supported by 20+ years of field operation data from Dalian FengHeRiLi Electric, helping industrial users, power grid operators and new energy project engineers pick cost-effective sensing solutions that fit specific scenarios.

2026

06-16

2026 Complete Guide to Voltage Sensor: Working, Selection & Industrial Use Cases

This 2026 practical voltage sensor guide, based on 10+ years of industrial sensing experience from FengHeRiLi, covers core definition, working principles, type comparison, selection criteria, common troubleshooting and real application cases, helping engineers pick the most cost-effective voltage sensor for power distribution, new energy and automation scenarios.

2026

06-13

2026 Complete Voltage Sensor Guide: Types, Applications & Reliable Selection Tips

This 2026 guide systematically covers core definitions, working principles, main types, typical industrial applications, and practical selection criteria for voltage sensors, based on 12 years of field test data from Dalian FengHeRiLi Electric. It also includes troubleshooting tips, mainstream product comparative data, and user Q&A to help engineers make accurate, cost-effective purchasing decisions.

2026

06-10

2026 Ultimate Guide to High Precision Voltage Sensor for Industrial & New Energy Scenarios

This 2026 practical guide elaborates the working principle, core specification, selection criteria, maintenance tips and typical application cases of voltage sensors, with verified field test data and industry research conclusions, helping engineers and procurement teams avoid common selection mistakes and pick the most cost-effective matched sensor for specific electrical systems.

2026

06-07

2026 Ultimate Guide to Current Sensor: Selection, Use Cases & Performance Optimization Tips

This 2026 practical guide sorts out full facts of current sensors including core working principles, classification, selection criteria, real application cases and performance testing standards, backed by first-hand test data from Dalian FengHeRiLi’s engineering team, helping industrial engineers and procurement staff avoid common pitfalls when choosing current sensing products.

2026

06-04

Current Sensor 2026: Full Guide for Industrial, New Energy & Smart Grid Use

This 2026 practical guide for current sensors elaborates core working principles, scientific selection criteria, mainstream application scenarios, daily maintenance and fault troubleshooting methods, integrates first-hand R&D and on-site test data from FengHeRiLi’s 17 years of manufacturing experience, to help engineers pick cost-effective, reliable sensing solutions for industrial automation, EV charging and smart grid projects.

Service Hotline

+86-411-83167118

feherili@fhdq.com

Fax

0411-83167110

Address

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

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