Parallel vs. Series Connection for SPDs: Which Is Better?

2025-03-17T17:18:27+08:00

When selecting between parallel or series connection methods for surge protectors (SPDs), the decision should be based on specific application scenarios and requirements. Both parallel and series connections are common configurations, each offering distinct advantages and suitable applications. Parallel Connection In a parallel configuration, multiple SPDs are connected simultaneously to the power lines of the protected [...]

Parallel vs. Series Connection for SPDs: Which Is Better?2025-03-17T17:18:27+08:00

Understanding SPD Failure Modes: Open-Circuit vs. Short-Circuit and Their Impact on System Protection

2025-02-26T11:02:19+08:00

Surge Protection Devices (SPDs) are critical components in safeguarding electrical systems from voltage spikes and surges. However, like any other device, SPDs can fail. Understanding the failure modes of SPD open-circuit and short-circuit—is essential for ensuring continuous protection and system reliability. Open-Circuit Failure in SPDs Open-circuit failure is a common mode of failure in SPDs, particularly [...]

Understanding SPD Failure Modes: Open-Circuit vs. Short-Circuit and Their Impact on System Protection2025-02-26T11:02:19+08:00

What is Iimp—Iimp of Class I SPD

2025-02-13T15:37:13+08:00

impulse discharge current for class I test  imp The impulse discharge current passing through the device under test (SPD) is defined by the crest value Iimp, the charge Q and the specific energy W/R. The impulse current shall show no polarity reversal and shall reach Iimp within 50 µs. The transfer of the charge Q shall [...]

What is Iimp—Iimp of Class I SPD2025-02-13T15:37:13+08:00

Why you choose Prosurge– About PROSURGE SPD technology

2025-01-02T10:08:58+08:00

  ①High energy MOV technology Voltage limiting type SPD per IEC 61643 High energy AC/DC MOV is employed for PROSURGE’s class I, Class II and Class III AC/DC/PV SPD with compact size.   Advantage of MOV (Metal oxide varistor) *Higher lightning & surge current discharge capacity *Wide voltage range to cover AC/DC/PV application *Fast response *Wide [...]

Why you choose Prosurge– About PROSURGE SPD technology2025-01-02T10:08:58+08:00

the selection and installation of photovoltaic surge protectors

2024-12-24T11:37:30+08:00

Photovoltaic power generation is another renewable clean energy besides wind power generation, and is widely used in various countries and regions. It has the characteristics of simple installation, scalability, stability, and long life. Lightning strikes and surges are also a major disaster for photovoltaic power generation systems. Prosurge provides a comprehensive and efficient lightning protection solution [...]

the selection and installation of photovoltaic surge protectors2024-12-24T11:37:30+08:00

Surge protective device – do you know its types?

2024-12-17T10:24:42+08:00

Surge Protection Device (SPD) is an electronic device that provides safety protection for various electronic devices, instruments, and communication lines. It is suitable for power supply systems with AC 50/60Hz and rated voltage of 220V/380V. The types and structures of surge protectors vary according to their different uses, but they can generally be classified in the [...]

Surge protective device – do you know its types?2024-12-17T10:24:42+08:00

Do you know the Up value of surge protectors?

2024-12-09T11:20:52+08:00

Surge protectors, as an important protective device, play a crucial role in protecting equipment from surge currents. When choosing a surge protector, an important parameter is the Up value. So, do you really understand the Up value of a surge protector?   Up: voltage protection level parameter that characterizes the performance of the SPD in limiting [...]

Do you know the Up value of surge protectors?2024-12-09T11:20:52+08:00

Lightning protection and grounding knowledge popularization, take you to understand clearly in 2 minutes!

2024-12-09T11:01:47+08:00

The grounding of lightning protection devices to prevent lightning overvoltage is usually referred to as lightning protection grounding. Lightning protection devices must have good grounding in order to effectively limit atmospheric overvoltage and scattered lightning currents. Below, the editor will popularize lightning protection and grounding knowledge for you, hoping to be helpful to you! Lightning [...]

Lightning protection and grounding knowledge popularization, take you to understand clearly in 2 minutes!2024-12-09T11:01:47+08:00

The Importance of Surge Protection for Energy Storage Systems

2024-04-26T17:11:21+08:00

Energy storage systems play a vital role in modern electricity grids, enabling the integration of renewable energy sources, improving grid stability, and providing backup power during outages. However, these systems are vulnerable to damage from power surges, which can occur due to lightning strikes, switching operations, or grid disturbances. Surge protection is essential for ensuring [...]

The Importance of Surge Protection for Energy Storage Systems2024-04-26T17:11:21+08:00

Experimental Investigation of the Withstand Capability of Class I SPDs under 10/350μs and 8/20μs Impulse Currents

2019-05-07T17:57:00+08:00

Surge protective devices (SPDs)are required to be tested under impulse discharge currents mainly with waveforms of 8/20 ms and 10/350 ms. However, with the improvement of SPD products, the performance and withstand capability of SPDs under such standard test currents need more investigation. In order to investigate and compare the withstand capability of SPDs under [...]

Experimental Investigation of the Withstand Capability of Class I SPDs under 10/350μs and 8/20μs Impulse Currents2019-05-07T17:57:00+08:00