this product is used to protect voltage transformer conform to GB, IEC, certification: ISO9001:2008 Offer OEM & ODM Brief introduction : LXQ(LXQ3,LXQ4) type harmonic elimination is used for neutral point ungrounded system, damping caused by voltage transformer ferroresonance as system shocking, to protect PT from damage, and ensure the security of electricity supply system. LXQ(LXQ3,LXQ4) ...