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End-to-End Power Project Solutions for the Global Energy Market

IEE Business provides end-to-end power project solutions for the global market — from financing and procurement to engineering, construction, and commissioning. We support utilities, developers, and industries with integrated services across renewable, thermal, and grid infrastructure projects, ensuring efficiency, compliance, and timely delivery worldwide.

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Engineering

Anti-Interference Water-Resistant High-Voltage Cable Solution for New Energy Vehicles
I. Solution Overview​With the rapid development of new energy vehicles toward higher voltage and greater intelligence, the performance requirements for internal high-voltage cables have become more stringent than ever. Traditional high-voltage cables commonly suffer from three major drawbacks: susceptibility to electromagnetic interference, poor stability of internal cores, and inadequate protection against water and physical compression. These issues severely impact the safety and reliability o
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09/10/2025
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Engineering

Application of New DC Circuit Breakers in Short-Circuit Fault Protection
I. Introduction​With the rapid advancement of modern information technology, intelligence has become a major trend in the development of industrial equipment. In the field of high-voltage switching, intelligent circuit breakers—as critical control components in power systems—form the foundation for automation and intelligence in power systems. This study focuses on an intelligent DC circuit breaker based on single-chip microcomputer (SCM) technology, emphasizing its practical applica
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09/05/2025
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Engineering

Application Solutions of DC Circuit Breakers in the New Energy Sector
I. Overview​With the rapid development of new energy power generation and electric vehicle (EV) charging facilities, DC systems have imposed higher requirements for safety protection equipment. Traditional AC circuit breakers cannot effectively interrupt DC fault currents, creating an urgent need for specialized DC circuit breaker solutions. This solution provides professional protection configurations for two major application scenarios: photovoltaic (PV) power generation systems and EV chargin
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09/05/2025
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Engineering

Low-Cost, Low-Loss DC Arc-Free Circuit Breaker Solution for Rail Transit
I. Solution Overview​This solution addresses the protection needs of DC systems (particularly rail transit traction power supply) against short-circuit faults by proposing a DC circuit breaker solution based on optimized mechanical breaker structure. It achieves arc-free interruption through capacitor voltage control, combining low on-state loss and high reliability, making it suitable for frequent operation scenarios.​II. Core Principle​Utilizes a fast mechanical switch topology combined with p
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09/05/2025
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Engineering

PEBS Circuit Breaker DC Safety Solution
Solution Overview​In modern renewable energy power systems, such as photovoltaic (PV) power generation and energy storage systems, fault protection on the DC side is a core element for ensuring safe, stable, and efficient operation. The Projoy PEBS series DC miniature circuit breakers are specifically designed for such applications, providing a comprehensive and efficient solution integrating arc control, overload protection, and short-circuit protection. This solution aims to deliver the highes
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09/05/2025
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Engineering

Rectifier-Type Hybrid High-Voltage DC Circuit Breaker Solution
I. Project Background and Requirement Analysis​With the deepening advancement of the energy transition, voltage source converter (VSC)-based flexible DC transmission technology has become a key solution for large-scale renewable energy integration and enhancing long-distance power transmission capabilities, owing to its advantages such as independent control of active and reactive power and low harmonic content. The construction of flexible DC grids is an inevitable trend. In this context, high-
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09/05/2025
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Engineering

Analysis and Solutions for DC Circuit Breaker System Failures
1.Overview​DC circuit breakers are critical protection devices in power systems, and their reliable operation is essential for system stability. This article provides systematic solutions for common DC circuit breaker failures, covering four major types: failure to close, failure to trip, false tripping, and false closing.​2. Solutions for Failure to Close​​2.1 Electrical System Fault Handling​• ​Open control circuit or absence of control power​Use a multimeter to measure the output voltage
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09/05/2025
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Engineering

Smart Meter Solution: Analysis of Core Functions and Application Scenarios
I. Solution OverviewAs a core terminal device for grid digitalization, smart meters integrate high-precision metering, bidirectional communication, and intelligent analysis to provide real-time data support for power systems.This solution, developed in accordance with international and domestic standards and integrated with advanced communication technologies, builds a secure and reliable smart metering system. It is designed to meet diverse needs across residential, commercial, industrial, and
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09/03/2025
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Engineering

Beyond Metering: How Smart Meters Create Multidimensional Value for the Grid, Enterprises, and Households
Amid the digital transformation of power grids and the construction of new power systems, smart meters have evolved from traditional electricity metering tools into intelligent terminal nodes integrating metering, communication, control, and analytics. This solution provides an in-depth analysis of the core functions, technical pathways, and diverse applications of smart meters, offering comprehensive value reference for various users.​I. Core Technological Foundation: High-Precision Metering an
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09/03/2025
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Engineering

Smart Meter Full-Scope Solution: Precise Cost Reduction and Efficiency Enhancement, Empowering Energy Digital Upgrade
Overview​With the deep integration of energy transition and the digital economy, traditional electricity management models can no longer meet the demands for precision, intelligence, and low-carbon development. This solution leverages advanced smart meters and IoT technologies to build a smart electricity management system covering various scenarios such as residential, commercial and industrial, distributed energy, and electric vehicle charging. It aims to improve energy efficiency, ensure safe
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09/03/2025
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