About Us Background

About Us

ZPro Factory
10+ Years Experience

About Us

Focus on Transformer Monitoring & Control

We specialize in the R&D, manufacturing and application support of transformer temperature, oil level and condition monitoring equipment. Leveraging our original factory manufacturing system and engineering experience, we provide products and solutions for global customers in transformer manufacturing, substation operation, equipment modification and industrial power scenarios.

Dalian Zhonghe Optoelectronics Technology Co., Ltd. was established in 2011 and officially put into production in 2012. The company has long focused on the field of transformer monitoring and control, with main products including transformer winding temperature controllers, transformer oil surface temperature controllers, digital oil level indicators, dry-type transformer temperature controllers and online monitoring systems.

Independent R&D and Industry Standards

The company adheres to independent R&D and continuous innovation, holds multiple patents and software copyrights, and participated in drafting industry standards such as "Transformer Winding Temperature Controller" JB/T8450-2016, "Transformer Oil Surface Temperature Controller" JB/T6302-2016 and "Transformer Electronic Temperature Controller" JB/T7631-2016.

Manufacturing and Testing Capabilities

In terms of manufacturing and testing, the company is equipped with standard constant temperature water tanks, standard constant temperature oil tanks, high-temperature test chambers, vibration tables, test detection systems and various professional instruments and equipment, which can carry out routine inspections and type tests to support product quality control and project delivery.

Core Products

Main Product Series

Transformer Winding Temperature Controller

Accurately monitor transformer winding temperature to ensure safe operation

Transformer Oil Surface Temperature Controller

Real-time monitoring of oil surface temperature to ensure normal operation

Digital Oil Level Indicator

Digital oil level monitoring, precise and reliable

Dry-type Transformer Temperature Controller

Temperature control solution specifically designed for dry-type transformers

Online Monitoring System

Real-time online monitoring and early warning of transformer status

Corporate Qualifications

Certifications and Honors

ISO9001 Certification

ISO9001 Quality Management System

Certified in 2012

High-tech Enterprise

High-tech Enterprise

Recognized in 2018

Intellectual Property Management System

Intellectual Property Management System

Certified in 2019

Industry Standard Drafting

Industry Standard Drafting Unit

Participated in formulating multiple JB/T standards

Global Service

Overseas Market and Cooperation Model

With stable product performance and continuous project supporting capabilities, the company's products have been widely used in transformer manufacturing enterprises, power grid systems, UHV projects and industrial power scenarios, and have multiple overseas market supply records.

As an overseas authorized partner, we are responsible for overseas market development, business communication, quotation, contract execution and service coordination; the original factory is responsible for product manufacturing, factory testing and technical support.

For key projects, we can coordinate to provide authorization documents, technical data, inspection reports, remote technical meetings and third-party inspection support to help customers advance project cooperation with higher efficiency.

Overseas Market Development
Business Communication & Quotation
Contract Execution Coordination
Technical Support Service
Global Service
10+ Service Countries
100+ Cooperative Customers

Our Commitment

We value long-term cooperation and also value the response quality of each specific project. Whether it is standard model supply, technical selection support, or project-based customized matching, we are committed to providing customers with clear, reliable and verifiable cooperation methods.

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