It is proved that the high frequency voltaic sensor and improved differential system and pulse polarity discriminating system can meet the requirement of partial discharge on-line detection system.

• 通过模拟实验证明，论文所设计的传感器和抗干扰系统配合使用能够提高检测系统的检测灵敏度和抗干扰能力，满足了在线检测系统的设计要求。