Bw-500 series neutral point grounding protection device is a set of isolation switch, zinc oxide arrester, discharge gap and current transformer and other electrical equipment combined as a whole set of equipment, with small volume, easy to install and debug, high reliability. Bw-500 earth protection device adopts rod/ball clearance, lightning arrester and isolation switch can be arbitrarily selected according to the needs of the project. The action mechanism of disconnecting switch can also be selected by manual or electric mechanism according to engineering requirements. The technical parameters of the clearance can be adjusted on site.

Environmental conditions

● Installation location: outdoor; Ambient temperature: +60℃~-50℃;

● Altitude is customized according to customer requirements;

● Wind speed is not more than 35m/s;

● The thickness of ice cover is not more than 10mm;

● Pollution level; Grade IV;

● Earthquake intensity is not more than 8 degrees;

● Installation site without flammable, explosive substances, no frequent violent vibration.

Ordering instructions

● The rated voltage of transformer, ratio of current transformer, rated current of isolating switch, form of operation mechanism, rated voltage of lightning arrester and other parameters should be informed when placing orders. If not specified, the product will be delivered according to the technical data standard configuration in this manual.

● The secondary side of the current transformer can be made into two secondary ones for measurement and protection. When not in use, it should be short-circuited.

● This complete set of equipment does not include column, anchor bolt, if necessary, please indicate when signing the technical agreement.

● This complete set of device does not include connecting rod between disconnecting switch operating mechanism, if necessary, please indicate when signing the technical agreement.

List of Product models

Technical parameters

● Accessory combination as a whole, quick and convenient on-site assembly.

● Bar/ball clearance is an independent part, made of stainless steel, the clearance distance is easy to adjust.

● After the user specifies the isolating switch and arrester model, accurately reserve the installation hole.

● Support adopts hot-dip galvanized steel support structure, firm and anticorrosive.

● Manual mechanism using CS17 series perfect manpower mechanism, with stainless steel box, easy to operate and labor-saving, the overall structure sealed, waterproof, dustproof, anti-rust ability, can be equipped with new DSW4 electromagnetic lock for users to mount the code lock.

● Electric mechanism adopts CJ6 electric mechanism, stainless steel box body, beautiful appearance, has good dustproof, waterproof, anti-rust ability, can meet a variety of interlocking performance. Secondary components are made of high quality products from domestic famous enterprises or joint ventures.