6%, 13% series reactor protection device for preventing harmonic resonance phenomenon
Harmonic Ingress Prevention Device Suitable for cases where overcurrent and overheating relays operate in a 6.6kV system leading capacitor circuit. Instead of attenuating or eliminating the harmonics themselves like a filter, it prevents the amplification phenomenon caused by harmonics. Manufactured by Otowa Electric Industry, a specialist in lightning protection products, including surge arresters (Arresters, SPD, LA, surge protectors, etc.), lightning countermeasures, lightning surge countermeasures, and induced lightning countermeasures.
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*Features* 1. Suitable for operation when overcurrent and overheating relays are triggered in a 6.6kV system phase advancing capacitor circuit. 2. Connected between the terminals of a 6% or 13% series reactor, it is normally in an open state, so it does not respond to harmonics within the guideline. (There are no issues with conducting voltage withstand tests in normal power distribution equipment.) 3. Instead of attenuating or eliminating the harmonics themselves like a filter, it prevents the amplification phenomenon caused by harmonics. It responds to transient overcurrents and quickly returns to a normal state. 4. It addresses overcurrents and noise (hum) associated with harmonic influx phenomena, which are initiated by the 5th harmonic, but does not address noise (hum) without overcurrent that is primarily caused by the 3rd harmonic. 5. It also operates and has a damping effect on switching surge overcurrents generated by the opening and closing of LBS. 6. Compact and lightweight, it can be easily installed without the need for extensive construction.
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[Purpose] Harmonic Ingress Prevention Device
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OTOWA is the only manufacturer in Japan specializing in lightning protection, having explored "lightning" since its founding. We want to create a safe and secure society where people are not afraid of the natural threat of "lightning." We will realize this wish with our advanced lightning protection systems. ◆ A wide range of product lineup We offer a variety of products, including surge protectors for power distribution, as well as those for offices, factories, railway vehicles, and general households. We also accommodate custom orders, so please feel free to consult with us. ◆ Consulting for lightning protection Lightning protection varies depending on various conditions such as location. OTOWA will propose the most suitable lightning protection measures for those conditions. ◆ World-class "lightning" testing facilities Using top-class testing equipment and a variety of testing facilities, we conduct product evaluation tests and development in-house. Our achievements are highly regarded, and we also accept contract testing (Lightning Technology Center). ◆ Unique quality of zinc oxide devices We produce zinc oxide (ZnO) devices under strict management. These devices are the heart of surge protective devices (SPDs) and are essential for lightning protection.