It is common in the industry for High Voltage Vacuum Relays to pass factory testing but fail under real operating conditions. This discrepancy typically occurs because standard factory tests verify short-term electrical performance, while field operation exposes relays to long-term stress such as repetitive switching, transient overvoltage, temperature fluctuation, and load variability. These factors gradually weaken vacuum stability, contact surfaces, and insulation margins.

European and North American buyers frequently report that relays function well during commissioning but fail after extended use. The root cause is often a mismatch between laboratory test conditions and real application environments. Procurement decisions based purely on test certificates overlook factors such as switching frequency, surge voltage, and duty cycle. When failures occur, the cost impact extends far beyond component replacement, affecting system reliability and customer trust.

Jingdezhen WPVAC Electric Co.,Ltd. addresses this gap by aligning factory testing with practical application scenarios. Its High Voltage Vacuum Relays are evaluated not only for rated performance but also for endurance under realistic electrical stress. By considering how customers actually use the relays, the company reduces the risk of early field failure and improves long-term stability for international buyers.

Passing factory tests is only the first step. Reliable suppliers must design and validate vacuum relays with real-world operating conditions in mind, which is why experienced manufacturers provide greater long-term value.