HV outdoor capacitor voltage transformers and coupling capacitors Robust design and proven performance

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1 HV outdoor capacitor voltage transformers and coupling capacitors Robust design and proven performance

2 ABB a global technology leader ABB is a global leader in power and automation technologies that enable utility and industry customers to improve performance while lowering environmental impact. The ABB Group of companies operate in around 100 countries. In India, ABB serves customers with the complete range of power and automation technologies. The company has a vast installed base, extensive manufacturing facilities and a countrywide marketing and service presence. The product offering covers a wide spectrum of technologies across the entire voltage range including indoor and outdoor circuit breakers, air and gas insulated switchgear, disconnectors, capacitor banks, reactive power compensators, power transformers, distribution transformers, instrument transformers, compact secondary substations (CSS) and ring main units (RMU). The power technologies division offers electric, gas and water utilities as well as industrial and commercial customers a wide range of products, systems and services for power generation, transmission and distribution. ABB s turnkey solution capabilities in the sector range from electrical balance of plant (EBOP) for power plants, bulk power transmission, substations and complete electrification to utility automation and distribution systems. 2 HV outdoor capacitor voltage transformers and coupling capacitors Product brochure

3 High voltage capacitor voltage transformers, type WN/WP/WS ABB offers mixed dielectric type capacitor voltage transformers that cater to the dual application needs of measurement, protection and carrier communication. Main features - Hermetically sealed with metallic bellows cushion in capacitor part - EMU (electro magnetic unit) protection by Spark Gap across primary winding of intermediate PT - Ratio error adjustment by compensating winding on PT primary winding, phase angle error adjustment by variable choke with adjustable air gap - Intermediate capacitor tap connection through an epoxy bushing housed in the insulator and tank - High protection against corrosion all ferrous parts and housing (tank) are hot dip galvanized - Cost-effective design - Application designed for measurement, protection and carrier communication - High reliability robust design ensures excellent surge withstand level - Low weight, compact, modular and easy to install - Ease of transportation shipped in easy-to-assemble parts - It can be connected without danger at the end of unloaded line Design and construction The capacitor voltage transformer type WN/WP/WS consists of a capacitive potential divider and an inductive medium voltage circuit. The inductive part is immersed in mineral oil and sealed inside a steel tank. As per the required rating, one, two or three capacitor units are mounted on the tank and used as capacitive potential divider(s). These consist of hermetically sealed capacitor stacks that are made of paper and PP film dielectric impregnated in transformer oil with a metal bellow at the top. Quality assurance The CVTs and CCs are designed to comply with IEC: / and IS: 3156 / IS: CVTs complying with ANSI/IEEE standards C57.13 or other standards can also be provided on request. ABB s state-of-the-art facility at Vadodara is ISO 9001 certified, which covers all aspects of production and testing to ensure the highest quality standards. The facility is also EHS certified for environment and occupational health and safety management systems. Frame mounted CSS for indoor application Product brochure HV outdoor capacitor voltage transformers and coupling capacitors 3

4 High voltage capacitor voltage transformers, type WN/WP/WS Schematic drawing Dimensional drawing All dimension in mm 420kV 245kV 145kV 72.5kV Technical data Parameter Rated system voltage 66kV 132kV 220kV 400kV Type WN 73N2 WN 145N2 WP 245N2 WS 420/N2 Rated capacitance in pf Rated freq. in Hz 50/60 50/60 50/60 50/60 Rated sec. voltage 110, 110/ 3, 100, 100/ 3, 183.3/3, 183.3/ 3 V, etc Rated burden 100VA/300VA/500VA Class of accuracy 0.2/0.5/3P Rated thermal burden at line to ground vol. 1000VA (simultaneously 3 windings) No. of secondary 3 (4 on request) Rated voltage factor 1.2 continuous & 1.5 for 30 sec Wind velocity 150 km/h 4 HV outdoor capacitor voltage transformers and coupling capacitors Product brochure

5 High voltage coupling capacitors, type KN/KP ABB offers mixed dielectric type coupling capacitors that cater to the needs of carrier communication. Main features - Hermetically sealed with metal bellows cushion on top - Protection against corrosion all ferrous parts and bottom stand are hot dip galvanized - Cost-effective due to optimal design - High reliability robust design ensures excellent surge withstand level - Low weight, compact, modular and easy to install - Ease of transportation shipped in easy-to-assemble parts Dimensional drawing All dimension in mm 245kV 145kV 72.5kV Technical data Parameter Rated system voltage 66kV 132kV 220kV Type KN 73N2 KN 145N2 KP 245N2 Rated capacitance in pf Rated freq. in Hz 50/60 50/60 50/60 Rated voltage factor 1.2 continuous & 1.5 for 30 sec Wind velocity 150 km/h Product brochure HV outdoor capacitor voltage transformers and coupling capacitors 5

6 Contact us ABB Limited Instrument transformers Maneja, Vadodara , India Phone: Fax: South Zone No.49, 5th Floor, West wing Khanija Bhavan, Race course road Bangalore Phone: / st floor, Apple towers Palarivattom bypass junction Cochin Phone: Fax: th floor, Ardee building, Plot no.1 Siripuram, Balajinagar Visakhapatnam Phone: Fax: th floor, Splendid towers S P road, Begumpet Hyderabad Phone: /15, Fax: Chennai Zone 1st Floor, Janpriya Crest 113/96, Pantheon road, Egmore Chennai Phone: (D), Telefax: nd floor, West wing Rajanarayan towers, 70, Race course road, Coimbatore Phone: West Zone ABB House Dr. S.B. Path, Ballard Estate Mumbai Phone: Telefax: / Plot no.34, Sector A Next to Bhopal Medical Centre Indrapuri, Raisen road, Bhopal Phone: Fax: Neel square, 1st floor, Plot no.8 Sanghvinagar, near Parihar chowk Aundh, Pune Phone: Sai-Rish, 5 - Gawande layout Near Chhatrapati square, Ring road Nagpur Phone: A-101, Shapath - 4, opp. Karnawati club S.G. highway, Ahmedabad Phone: R&D Centre, Marketing department P.O. Maneja, Vadodara Phone: East Zone Omega building-17th floor, BIPL Block-EP&GP, Sector-V, Salt Lake City Kolkata , WB, INDIA Phone: Telefax: Kashikunj building, Road no.2 Contractors area, Bistupur Jamshedpur Phone: st Floor, City center, Plot no.a5/1 Sachivalaya marg, unit 9 Bhubaneshwar Phone: Maruti heights, 5th floor, Aamanaka G E road, Raipur Phone: / North Zone 14, Mathura road, Ground floor P.O. Amarnagar, Faridabad Phone: Mobile: SCO-no.13, 14, 15, 3rd floor, 34 A Chandigarh Phone: C-116, Alaknanda, II floor Behind Vidhan Sabha Janpath , Jaipur Phone: Fax: C-2/201, Vaibhav Place, Indira nagar Dehradun Phone: Fax: SCO - 124, 5th floor, Gurtej tower Firooz Gandhi market Ludhiana Phone: / /9, Raina Pratap marg, 2nd floor Raj chambers, Lucknow Phone: Fax: 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 parties or utilization of its content - in whole or in parts - is forbidden without ABB s prior written consent. 1HYT Rev C Copyright 2011 ABB. All rights reserved.

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