Empowering industrial safety and driving ecological win-win
Shanghai Donghua Lanhai Technology Co., Ltd. specializes in lightning protection and electrical connection products, providing comprehensive solutions for wind power, photovoltaic, energy storage, industrial automation and other fields
Business Introduction
Industry Solutions
Comprehensive surge protection across wind power, solar PV, data centers, industrial automation, and more.
box-type transformer
The primary voltage is typically 35kV, and the secondary voltage is typically 440/690Vac, requiring the installation of an SPD.
Wind power converter
400/690Vac power input line. Power supply SPDs are installed on the grid side and the equipment side. Signal SPDs are usually not used by manufacturers, but are replaced by components.
Main control system
Typically, a 230/400Vac three-phase power input line is used, with a few manufacturers using 400/690Vac power input lines. SPDs typically protect power input lines, digital signals, analog signals, temperature monitoring signals, and bus signals.
Pitch system
Typically, it's a 230/400Vac three-phase power input line. SPDs typically protect power input lines, digital signals, analog signals, temperature monitoring signals, and bus signals.
dynamo
The stator is connected to the grid side of the converter, and the rotor is connected to the machine side of the converter. It is protected by a two-stage SPD.
De-icing system
Installed at the blade root, close to the downlead, surge protection is particularly important. Both power supply and signal SPDs use this technology, and most SPDs must have a 10/350µs parameter.
Medium and low voltage switchgear
low-voltage switchgear
diesel generator set backup power
UPS HVDC rack-mounted unit lighting cooling unit precision air conditioning monitoring and management platform
Development history
Milestones & Development
origin
The company was founded in 2021.
Registered Trademark
Company located in Shanghai
Settling in United Valley Shanghai International Enterprise Port
We thrive
Completed three-system certification
Design and development of DH series products
Laboratory equipment, including the impact platform, has been completed.
The products are used in power transmission and distribution, wind power, photovoltaic and other industries.
Client
Yunda Energy Technology Group
Shanghai Electric
Zhuzhou CRRC Electromechanical
Oriental Automation
Rifeng Electric
Zhongheng Electric
Lokai Electromechanical
Xinbang, Ingram Micro
Product side
DHO and YD series products put into production and application
DHO's entire product line has obtained TÜV Rheinland CE/UKCA/TUV/RoHS certifications.
Credit system certification
Applications for intellectual property rights such as software copyrights and patents
Development Chapter
DHO series products are supplied in large quantities to the world's top 5 wind power customers.
Bulk supply to data centers, water treatment, and transportation industries
Certificates for intellectual property rights such as software copyrights and patents
Maintain zero product defects throughout the year
Target
Increase market share in wind power, photovoltaic, and energy storage industries
Large-volume supply of data center services
Develop overseas markets and export products.
Product Introduction
Full Range of Surge Protection Products
Covering various voltage levels, signal types, and installation environments to meet industrial-grade requirements.
Product Certification
Global Certification System
Comprehensive end-to-end certifications covering products, quality, environment, safety, and R&D platforms.
Product Certifications
CE
CE
CE
CE
CE
CE
UKCA
UKCA
TUV
TUV
RoHS
RoHS
System Certifications
ISO9001
ISO9001
ISO 14001
ISO 14001
ISO 45001
ISO 45001
Software Copyrights
Surge thermal protection function evaluation system
Surge thermal protection function evaluation system
Surge protector operation monitoring system
Surge protector operation monitoring system
Surge protector operation test system
Surge protector operation test system
Surge protector safety assessment system
Surge protector safety assessment system
Lightning surge protection system
Lightning surge protection system
CLIENTS
Leading the Way to a Zero-Carbon Future
Long-term partnerships with global leaders in wind power, renewable energy, transportation, and industrial sectors.
Manufacturing
Modern production base with strict quality control
Production area
2000 square meters
Modern production base
Annual production capacity
600,000+
Automated production line
test
100% full inspection
Every product undergoes full inspection before leaving the factory.
Delivery cycle
Standard products: 1 week; Non-standard products: 4 weeks
Fast delivery of standard products
Ready to Collaborate
Need Customized Surge Protection & Connectivity Solutions?
Our engineering team provides one-on-one technical support and customized product development for wind, solar, data center, and industrial projects.
Typical response time within 24 hours • Free technical consultation provided