Adapted to prevent lightning and overvoltage protection of surge protectors complete series. Surge protection lightning surge currents generated in low-voltage distribution systems and data transmission network will produce over-voltage, ABB OVR complete series surge protector can be safely lightning current into the ground and limit overvoltage. ? OVR with a compact and easy wiring of the advantages of modular design? OVR has a safety margin protection, working status indicator and remote signaling contacts, allowing users to get a more reliable protection ABB OVR surge protector includes OVR T1, OVR T1 + 2, OVR BT2, OVR TC and OVR Telecom (communications), OVR PV (photovoltaic), OVR WT (wind) and other products can be widely used in construction, transmission and distribution, industrial, communications, new energy, transportation and other fields. Type 1 surge protector (OVR T1) is usually installed in the mains power switch impose direct lightning discharge energy, which is the supply line of the first-level protection. The surge protector can effectively protect the connected device within 10 meters, so you must use one or more of the surge protector, to protect the device withstand voltage level. Type 1 + 2 surge protector (OVR T1 + 2) Type1 + 2 surge protector is the primary and secondary SPD combination matches the SPD, for the discharge of high energy generated by direct lightning strike, while ensuring that the majority of lower voltage levels safe operation of electrical and electronic equipment, used in residential, commercial and industrial. Type 2 surge protector (OVR T2) and Type1 surge protector used in conjunction with, applied to the second-level protection. ? Pluggable, the maximum discharge current of 10,20,40,70 (or 65), 100 and 120kA (8/20 Cheng ochs)? Pluggable OVR simply replace the old core can continue to work, save on maintenance play a protective function PV-specific surge protector (OVR PV) when the time and cost? Security Reserve System (res) in surge protector in the standby state designed specifically for photovoltaic applications, plug-in structure, high rated voltage 600 / 1000VDC. Surge protection (OVR WT / OVR BT2 660/690) rated up to 600 / 690VAC, and a high level of resistance to the open circuit voltage, widely used in wind power generation and other industries. Communications-specific surge protector (OVR Telecom) specifically developed for the communications industry applications, plug-in structure, the maximum continuous operating voltage 385V. Data Surge protection (OVR TC) lightning risk not only in the power system, but also in other ancillary network communications and data transmission should be used in special surge protector (OVR TC) series in the network, to provide adequate protection . ABB's new generation of OPR lightning pulse optimization and development of early discharge lightning uphold the original lightning rod function, towards the protection of powerful, autonomous operation and maintenance easier orientation, has taken a solid step forward, strengthening ABB in direct lightning strike international leader protection. Unique effects OPR lightning from a controlled early discharge performance: the upward leader before the natural formation, OPR will produce a guide in advance, until the capture lightning spread rapidly to lightning direction, and into the earth. Experiments confirmed: it produces earlier than normal lightning upward leader ahead of discharge, given the OPR more effective lightning protection.