English 
At Kingsine, we're proud to announce an advancement in the field of protection relay testing with the introduction of our innovative "Plug and Play" technology. Embedded within our KF86P protection relay tester and KFA series handheld mini relay tester, this cutting-edge feature represents a significant leap forward in terms of ease of use, efficiency, and reliability.
Unparalleled Product Quality and Warranty Commitment
The KF86P and KFA300-series are meticulously crafted using state-of-the-art technology, modular design, and a streamlined internal structure. This meticulous approach ensures that our products maintain an exceptional level of quality, setting new benchmarks in the industry. Moreover, we stand behind our craftsmanship with a robust three-year warranty commitment, providing our customers with peace of mind and confidence in the longevity and performance of our testers.
Contribute to Achieving the Quality Objective of A 15-year Product Service Life
In addition to ensuring superior quality, our team also contributes to achieving the quality objective of a 15-year product service life. By utilizing durable materials and implementing rigorous testing procedures, we're committed to delivering products that not only meet but exceed our customers' expectations for reliability and longevity.
Simplified After-Sales Maintenance
One of the standout features of our "Plug and Play" technology is its impact on after-sales maintenance. Unlike traditional testers that require complex calibration procedures and specialized expertise, our testers only require module replacement for maintenance. This streamlined process eliminates the need for accuracy calibration after module replacement, saving time and resources for our customers.
User-Friendly Installation
Gone are the days of grappling with complicated installation processes. Thanks to the simple structure of our testers, even beginners can achieve independent installation with ease. Our intuitive design ensures that users can assemble the testers quickly and efficiently, without the need for extensive training or technical expertise.
Cost-Effective Solutions
In addition to simplifying maintenance procedures, our "Plug and Play" technology also leads to reduced after-sales costs. By minimizing the need for specialized maintenance services and calibration equipment, we empower our customers to save on maintenance expenses while still benefiting from top-of-the-line testing capabilities.
Swift After-Sales Support: Complete in 20 Working Days
We understand the importance of minimizing downtime and ensuring uninterrupted operations for our customers. That's why our goal is to complete after-sales services within 20 working days. Our dedicated support team is committed to providing timely assistance and resolving any issues efficiently, allowing our customers to focus on their core business activities with confidence.
Public disclosure, the internal structure is visualized as shown in the following diagram:
KF86P Internal structure
KF86P Assembly of internal structure
KFA300：
KFA300 Internal structure
Installation steps:
Assembly can be completed in just three steps.
① Assemble the voltage module.
②Assemble the current module.
③Assemble the digital control and display module.
Due to the utilization of innovative technologies, we have successfully resolved the challenge of precision calibration during on-site customer after-sales maintenance. After-sales service is just that simple.
