--- description: Recently, Jiangsu Luokai Mechanical & Electrical Co., Ltd. officially purchased a Partial Discharge & Non-Partial Discharge AC Hipot Integrated Test title: "Project News: Jiangsu Luokai Purchases DEMIKS Partial Discharge Test System for High Voltage Switchgear Lab - DEMIKS" image: https://demikspower.com/wp-content/uploads/2026/09/High-Voltage-Switchgear-Lab-PD-testing-System.jpg --- [Skip to content](#content) # Project News: Jiangsu Luokai Purchases DEMIKS Partial Discharge Test System for High Voltage Switchgear Lab - [by Demiks](https://demikspower.com/author/demiks/) - [on September 28, 2026](https://demikspower.com/blog/2026/09/28/) - [No Comments](https://demikspower.com/blog/project-news-jiangsu-luokai-purchases-demiks-partial-discharge-test-system-for-high-voltage-switchgear-lab/#respond) Recently, Jiangsu Luokai Mechanical & Electrical Co., Ltd. officially purchased a **[Partial Discharge](https://demikspower.com/high-voltage-test-equipment/partial-discharge-testing-equipment/) & Non-Partial Discharge [ AC Hipot Integrated Test System](https://demikspower.com/high-voltage-test-equipment/power-frequency-voltage-withstand-device/)** from Shanghai Demiks Power Technology Co., Ltd. The complete high voltage test equipment finished installation, joint commissioning and acceptance. The whole platform has been put into operation in Luokai’s high voltage switch laboratory for type test and routine test of medium & high voltage switchgears, circuit breakers and switch components. **Contents** show [1 Core Technical Advantages of DEMIKS Partial Discharge Test System](#Core_Technical_Advantages_of_DEMIKS_Partial_Discharge_Test_System) [2 Project Value](#Project_Value) ### ****Core Technical Advantages of DEMIKS Partial Discharge Test System**** Ultra-low inherent partial discharge level for official type tests The non-PD test transformer uses high-purity insulating oil and optimized winding structure. The inherent PD level is controlled below 5pC at rated voltage. It complies with GB/T 4109 and IEC 62271 standards, fully qualified for high voltage switchgear type tests required by certification authorities. Synchronous AC withstand voltage and [partial discharge](https://demikspower.com/blog/partial-discharge/) detection The system supports **hipot test and PD monitoring running simultaneously**. While applying power frequency high voltage to verify insulation strength, it continuously captures early discharge defects caused by internal voids or impurities inside insulation materials. Hidden failures which cannot be found by simple withstand voltage test can be effectively detected. Excellent anti-interference performance for factory workshop environment Cooperating with electromagnetic shielding room, the system adopts hardware filter and digital noise reduction algorithm to suppress disturbance from inverters, cranes and welding equipment. The PD detector can distinguish external noise and genuine partial discharge signals of test samples, greatly improving test accuracy. Fully automatic remote control to enhance operation safety Operators control the whole test procedure outside shielding room. Multi-protection including over-voltage, over-current and breakdown interlock. The system cuts off high voltage within milliseconds once flash-over or breakdown occurs. Test data, voltage curves and PD trend charts are automatically saved for quality archiving. Modular structure with flexible expandability Modular design allows future expansion of lightning impulse test, series resonance test modules. The system fits multiple test objects: medium voltage switchgears, vacuum circuit breakers, solid encapsulated poles, ring main units and insulating components, suitable for R&D type tests and factory routine sampling inspection. ![High Voltage Switchgear Lab PD testing System](https://demikspower.com/wp-content/uploads/2026/09/High-Voltage-Switchgear-Lab-PD-testing-System-300x225.jpg) ![Partial dicharge test system](https://demikspower.com/wp-content/uploads/2026/09/Partial-dicharge-test-system-300x225.jpg) ![PD Testing Controller](https://demikspower.com/wp-content/uploads/2026/09/PD-Testing-Controller-300x225.jpg) ### ****Project Value**** Jiangsu Luokai Mechanical & Electrical focuses on R&D and production of operating mechanisms and components for high & medium voltage switchgears. Global customers put forward higher requirements on partial discharge indicators of switch products. With DEMIKS [**partial discharge test system**](https://demikspower.com/high-voltage-test-equipment/partial-discharge-testing-equipment/), Luokai establishes a standardized high voltage laboratory: ✅ Detect hidden insulation defects such as air voids and delamination inside solid insulated poles and bushings; ✅ Realize full insulation quality control before delivery, reduce risks of insulation breakdown and internal discharge after grid operation; ✅ Gain self-owned testing capacity equivalent to official certification laboratories, supporting new product development and global market certification. Shanghai Demiks Power Technology specializes in manufacturing [**high voltage power test equipment**](https://demikspower.com/high-voltage-test-equipment/power-frequency-voltage-withstand-device/). Main products include non-partial discharge hipot & PD test system, [lightning impulse generator](https://demikspower.com/high-voltage-test-equipment/impulse-voltage-test-system/), series resonance test set, SF6 gas analyzer, AC/DC hipot tester and online partial discharge monitoring equipment. We provide integrated laboratory solutions for high voltage switch manufacturers, cable factories, power research institutes and authorized testing laboratories. 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My articles cover customer test systems, including impulse voltage, temperature rise, and partial discharge testing, so readers can see the testing needs behind each project and the solutions being discussed. Search Recent Posts [![ONAN Transformer Full Form: Meaning, Cooling and Ratings](https://demikspower.com/wp-content/uploads/2026/11/onan-transformer-full-form-featured.png)](https://demikspower.com/blog/onan-transformer-full-form/) ### [ONAN Transformer Full Form Explained: From Cooling Code to Rated Duty](https://demikspower.com/blog/onan-transformer-full-form/) November 3, 2026 [![](https://demikspower.com/wp-content/uploads/2026/10/30KVA-Intelligent-Power-Frequency-Withstand-Test-System1-scaled.jpg)](https://demikspower.com/blog/shanghai-demiks-power-technology-delivers-high-voltage-test-equipment/) ### [Shanghai Demiks Power Technology Delivers High-Voltage Test Equipment](https://demikspower.com/blog/shanghai-demiks-power-technology-delivers-high-voltage-test-equipment/) October 29, 2026 [![ONAN vs ONAF: Nameplate and Test Checks](https://demikspower.com/wp-content/uploads/2026/10/onan-vs-onaf-featured.png)](https://demikspower.com/blog/onan-vs-onaf/) ### [ONAN vs ONAF Transformer Cooling: Ratings, Losses and Selection](https://demikspower.com/blog/onan-vs-onaf/) October 28, 2026 [![](https://demikspower.com/wp-content/uploads/2026/10/Complete-Power-Frequency-Withstand-Voltage-Test-Device-scaled.jpg)](https://demikspower.com/blog/demiks-power-delivered-transformer-oil-chromatograph-and-power-frequency-withstand-voltage-test-set/) ### [Demiks Power delivered transformer oil chromatograph and power frequency withstand voltage test set](https://demikspower.com/blog/demiks-power-delivered-transformer-oil-chromatograph-and-power-frequency-withstand-voltage-test-set/) October 28, 2026 [![PD Testing System With Simple Workflow: 8 Essential Steps](https://demikspower.com/wp-content/uploads/2026/10/pd-testing-system-with-simple-workflow-featured.png)](https://demikspower.com/blog/pd-testing-system-with-simple-workflow/) ### [PD Testing System With Simple Workflow: 8 Essential Steps](https://demikspower.com/blog/pd-testing-system-with-simple-workflow/) October 27, 2026 [![](https://demikspower.com/wp-content/uploads/2026/10/6300A-current-booster.jpg)](https://demikspower.com/blog/6300a-three-phase-high-current-temperature-rise-test-system/) ### [6300A Three-Phase High Current Temperature Rise Test System](https://demikspower.com/blog/6300a-three-phase-high-current-temperature-rise-test-system/) October 27, 2026 - [DEMIKS NEWS](https://demikspower.com/blog/category/demiks-news/) - [high voltage power test equipment](https://demikspower.com/blog/tag/high-voltage-power-test-equipment/), [lightning impulse generator](https://demikspower.com/blog/tag/lightning-impulse-generator/), [partial discharge test system](https://demikspower.com/blog/tag/partial-discharge-test-system/) [![logo](https://demikspower.com/wp-content/uploads/2025/05/1-1.png)](https://demikspower.com) I’m DEMIKS, and I manage this blog. We are bringing electric power technology from China to the rest of the world for its innovation, sustainability, and global impact. We are deeply driven by professionalism, integrity, and service excellence. 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