Founded in 2004, Shanghai GrandTop Lightning Technology Co., Ltd aims to provide power impulse equipments and test solutions. We can provide SPD test equipments, high voltage test equipments, control and measurement systems based on computer and special pulse power source for the low voltage and high voltage electrical apparatus, such as SPD, MOV, GDT, power transformers, insulators, switchgears, power cables, voltage transformer, current transformer, bushings, etc.
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