Generator Circuit-Breakers HVR-63XS HVR-63S
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Product Brochure Generator Circuit-Breakers HVR-63XS HVR-63S Power and productivity for a better world™

Generator circuit-breaker type General Rated maximum voltage kV 24 24 Rated continuous current A rms up to 6300 up to 8000 Rated insulation level Rated power frequency withstand voltage to earth and across circuit-breaker/switch contacts kV rms 60 60 Rated lightning impulse withstand voltage to earth and across circuit-breaker/switch contacts kV peak 125 125 Circuit-breaker Rated peak withstand current Rated short-time withstand current Rated short-circuit making current Rated short-circuit breaking current Rated operating sequence Rated interrupting time 1) Provided that surge capacitors...

The new circuit-breaker HVR-63 Open design and small footprint offers maximum flexibility The HVR-63 generator circuit-breaker (GCB) is the latest generation of ABB’s well-proven HGI generator circuit-breaker series and it is best suited for retrofit in power plants with a unit power of up to 180 MW. The open design and small footprint make it perfect for systems with open busbar and short-circuit ratings up to 63 kA. Our innovative built-in direct contact ablation display offers the highest degree of Hydraulic spring operating mechanism Advanced operating system delivers stability and...

Mechanical Ablation Measurement Promoting safety and reliability Schematic description: Mode of operation of the interrupting chamber of the type HVR-63 circuit-breaker a Circuit-breaker in the “OPEN” position; the spring is uncharged and the contacts are open b Circuit-breaker in the “CLOSED” position; the spring is charged and the contacts are closed. Ablation indicator shows full contact length. c Circuit-breaker in the “CLOSED” position; the spring is charged and the contacts are closed. Ablation indicator shows reduced contact length. The Ablation indicator show the end of the arcing...

Flexible Connection Kit Flexible connections provide a detachable (bolted) connection between the generator circuit-breaker live part and the conductor of the adjacent phase bus. The flexible connections are designed to: ABB recommended type and arrangement of flexible copper straps responds to these requirements as follows: A) Carry the rated continuous current and the rated shorttime withstand current without exceeding the maximum permissible temperatures. A), B) & E) Fully type tested together with the Generator Circuit-Breaker to prove that the stringent requirements imposed by the...

Clearance required for safety (protective barriers are excluded from ABB scope of supply) N = Phase distance: 500 or 800mm - other values for N are not avaliable. Busbars need to be adjusted accordingly. *) min. space required for operation and maintenance

Dimension Drawing HVR-63XS/63S vertical Clearance required for safety (protective barriers are excluded from ABB scope of supply) N = Phase distance: 500 or 800mm - other values for N are not avaliable. Busbars need to be adjusted accordingly. S1 = min. 360mm for BIL 110kV; min. 385mm for BIL 125kV (clearance to any object) S2 = min. 190mm for BIL 110kV; min. 215mm for BIL 125kV (clearance to any object)

ABB Switzerland Ltd High Voltage Products Brown Boveri Strasse 5 CH-8050 Zurich / Switzerland Phone: +41 58 588 34 24 Email: sales.gcb@ch.abb.com Note We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document. We reserve all rights in this document and in the subject matter and illustrations contained therein. Any reproduction, disclosure to third...