ABB SPD OVR-15KA / 4P (1P2P 3P 4P) 1. Overview: ABB Surge Protector (Surge protection Device) is a device indispensable lightning protection of electronic equipment, in the past often called "lightning" or " Overvoltage protection "in English abbreviated as SPD. Even small surges or peak voltage can ultimately destroy or affect the performance of expensive electronic equipment such as computers, phones, fax, television, audio / video equipment and other household appliances and tools. The increasingly widespread use of computer chips need surge protection, because these chips are often very sensitive to voltage fluctuations. The ABB surge protector power like a sponge that can absorb the extra voltage is dangerous, to prevent most of these voltages into your sensitive equipment. OVR BT2 surge protector, 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 put into the ground and the lightning current limit over Voltage. 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 contact, allowing users to get a more reliable protection. ABB OVR surge protectors include 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, multiple areas of transmission and distribution, industrial, communications, new energy, transportation and so on. 2. OVR Category: OVR includes three surge protectors, and serves as a power supply network protection: Type 1 surge protector in order to vent into the ground, mainly by the current surge of energy through power lines or by entering the external lightning protection system transmission and distribution power plant should be fitted with Type 1 surge protector. Type 1 surge protectors for overvoltage suppression generated by current flowing through this current equivalent to the current generation of direct lightning strikes. This product has been successfully detected by standard 10/350 wave (class I test). ABB's technology OVR Type 1 MOV surge protection, surge current capacity 15 kA (10/350 μs waveform in) for unipolar or multipolar, and can withstand direct lightning strikes. Its low level of protection (up = 1.2 kV) and without decoupling coil. Type 2 Type 2 surge protector surge protector may further reduce the voltage, because the downstream distribution cabinet that Type 2 surge protector installed at the power system voltage can still enter. Type 2 surge protectors for overvoltage suppression generated by current flowing through this current operation is equivalent to an indirect lightning or over-current voltage generated. This product has successfully passed the standard test waveforms 8/20 (II level test). Its technologies include nonlinear resistance, and using a variety of different networks (IT, TT, TNC, TNS), and all of the network voltage by 57 至 600 V. In addition, they can provide a high energy discharge capacity (up to 100 kA, 8/20 μs waveform in) two choices: to safely retain preventive maintenance products have been integrated remote monitoring indicators or light boxes with surge protector Type 3, Type 3 surge protectors for some very sensitive or expensive equipment (such as: audio systems, computers, televisions) may provide additional protection, and the remaining overvoltage to ground. Type 3 surge protector for the device to provide a terminal protection, and can adapt to extreme 230 / 400V voltage in a multi-TT and TN networks. Data transmission line surge protector OVR TC transmission line surge protector to protect telephone lines, computer communication lines or small current loop connected devices. (Such as voltage: 6V, 12V, 24V, 48V or 200V) 3. Basic features: protection through flow, low residual voltage, fast response time; interrupter using the latest technology, completely avoid the use of fire temperature protection circuit ;; built-in thermal protection; with power status indication that the surge protector working condition; structured, stable and reliable. 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