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Partial discharge (PD) in oil-immersed power transformers remains a globally recognized challenge in the transformer industry. Numerous manufacturers have suffered significant losses due to PD-related failures.

PD exceedances may occur during factory testing, third-party inspections, or at customer sites. Locating PD sources is often like "finding a needle in a haystack," leading to rework lasting days or even months, causing substantial quality losses for manufacturers or end-users.

Do you know the difference between amorphous alloy transformers and ordinary silicon steel transformers? As a transformer manufacturer with 15+ years of experience, JZP explains the differences between these two types of transformers. It's not just a difference in materials; it's a technological battle between energy efficiency, cost, and future trends.

Three-phase oil-immersed transformers utilize electromagnetic induction to step up or step down AC voltages, serving as critical equipment in power systems to connect grids of different voltage levels. For example, they raise generator output voltages (e.g., 6kV or 10kV) to transmission-level voltages (e.g., 220kV or higher) for long-distance power delivery or reduce high-voltage electricity to distribution-level voltages (e.g., 10kV/0.4kV) for end-users

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In the field of electrical engineering, the distribution system serves as a critical link between power transmission and consumption. A profound understanding of distribution knowledge, particularly regarding switchgear, is indispensable for electrical engineers and technicians. Switchgear is an integrated distribution device assembled according to specific circuit schemes, combining primary equipment (e.g., busbars, circuit breakers) and secondary equipment (e.g., relays, meters). Its primary function is to control and protect distribution lines and equipment, ensuring the safe and stable operation of power systems.

JZP’s single-phase pad-mounted transformers are engineered to exceed global standards while delivering unmatched flexibility and durability for diverse power distribution needs. Designed to comply with and surpass ​ANSI, IEEE, DOE, CSA, and NEMA standards, these transformers incorporate advanced safety features and robust construction, ensuring optimal performance in industrial, commercial, and residential applications.

As a leading player in the power transformer industry, JZP Power Transformer is thrilled to announce its participation in the ​Electricity Transformation Canada 2025, a premier event dedicated to shaping the future of the electricity sector in Canada. The exhibition will take place from ​October 6–8, 2025, at the ​Enercare Centre in Toronto, Ontario, and JZP Power Transformer will showcase its cutting - edge solutions at ​Booth 609.

The classification of voltage levels in power systems is fundamental to ensuring efficient energy transmission, distribution, and safety. Voltage grades determine how electricity is transported across grids, balanced for technical and economic feasibility, and adapted to diverse applications. This article explores the criteria and standards governing these classifications, with a focus on ​high voltage (HV)​, ​medium voltage (MV)​, ​low voltage (LV)​, and ​ultra-high voltage (UHV)​.The classification of voltage levels in power systems is fundamental to ensuring efficient energy transmission, distribution, and safety. Voltage grades determine how electricity is transported across grids, balanced for technical and economic feasibility, and adapted to diverse applications. This article explores the criteria and standards governing these classifications, with a focus on ​high voltage (HV)​, ​medium voltage (MV)​, ​low voltage (LV)​, and ​ultra-high voltage (UHV)​.

As a leading manufacturer specializing in ​medium and high voltage transformers, JZP Power Transformer is thrilled to announce our participation in ​ENLIT Europe 2025—the continent’s premier event for energy innovation. From November 18–20, 2025, we’ll showcase our cutting-edge solutions at the ​Bilbao Exhibition Centre (48100 Bilbao, Bizkaia, Spain)​. Visit us at ​Booth 3.F122​ to discover how we’re shaping the future of power transmission and distribution.

In the dynamic landscape of global energy infrastructure, ​JZP​ stands as a pioneering force specializing in ​medium and high voltage transformers—the backbone of efficient power transmission, distribution, and utilization. With decades of expertise, cutting-edge technology, and an unwavering commitment to quality, we empower industries, utilities, and projects worldwide to achieve reliable, sustainable, and cost-effective energy solutions.