Product brochure HMC-4 operating mechanism Designed for reliable switching HMC-4 for optimized performance based on 30 years experience HMC-4 improves the circuit-breaker application by delivering adaptability, compactness and reliability. Applications Operating mechanisms are a key component of high voltage circuit-breakers. They find their application in live tank breakers, dead tank breakers, generator circuit-breakers and gas-insulated switchgear. Adaptation and time to market The general design of HMC allows for superior adaptability compared to other types of operating mechanism principles. Leading to the shortest time-to-market; guaranteed also by compatibility with all HMB-4 applications. Innovation and reliability Our experience is based on: – 30 years of design and manufacturing – more than 100,000 operating mechanisms produced – more than 100 different product applications The development of the HMC-4 is based on ABB‘s long history of operating mechanisms and past history with the HMB. This experience has been used for many innovative solutions and resulted in patented new technologies. The HMC-4 features – Highest switching reliability by using new design principles like – cylinder made from gray cast iron and steel – new robust valve technology – wiper protected sealing systems – gearless pump unit – integrated close-interlocking – Lowest life-cycle cost due to – being maintenance-free for 10,000 CO operations – easily accessible and exchangeable modules – Shortest time-to-market due to – simple and easy adaptation to all circuit-breaker types – compatible interface with HMB – nearly identical travel curve as HMB-4, allowing alternative operating mechanisms test according to IEC62271-100 – Highest power density on market for most compact design of equipment – Suitable for 245 - 550 kV circuit-breaker applications As a result end users and manufacturers of high voltage equipment can expect the highest switching reliability available. Life cycle cost The HMC-4 is a compact and reliable operating mechanism, designed with easily accessible modules. Due to its advanced design the HMC-4 is free of scheduled maintenance for 10,000 CO-operations – resulting in the lowest life cycle cost possible. 1 HMC-4 in 420 kV application of type ELK-3 / 420H | 2 HMC-4 control module 1 2 | HMC-4 operating mechanism 2 Technical data piston rod diameter stroke HMC-4/18-205 HMC-4/22-205 HMC-4/18-230 HMC-4/22-230 18 mm 22 mm 18 mm 22 mm 205 mm / 8.07 in 205 mm / 8.07 in 230 mm / 9.06 in 230 mm / 9.06 in stored energy open 4.8 kJ 4.0 kJ 5.1 kJ 4.3 kJ stored energy close 2.1 kJ 3.1 kJ 2.3 kJ 3.5 kJ stored operating sequence O-CO - 60 s - CO mechanical endurance configurations / CO - 15 s - CO / O-CO - 15 s - CO (optional) M2 acc. to IEC 62271-100 power pack (PP), extended power pack (EP), complete mechanism (CM) dimensions Ø x h (EP) 555 mm x 847 mm / 21.9 in x 33.3 in weight appr. 350 kg / 770 lb Basic technical data for the variants of HMC. Other data, defining secondary technology, are customer specific and part of the customization process of the operating mechanism. Easy plug-and-play of customer-specific components, like coils or motor, guarantee late-customization at the switchgear manufacturer’s site. Therefore lead-times can be reduced to a minimum. Modular design around central cylinder allows for compactness and efficiency ⑥ ③ ⑤ ④ ② ① ② 1 Working module Central cylinder with piston rod operating the circuit-breaker, linear motion allows direct coupling to the circuit-breaker, adjustable speed, integrated damping 2 Storage module Helical springs with three storage blocks storing the energy for O-CO operation, temperature independent energy storage, springs are buckle-free and tested for 1,000,000 cycles 3 Charging module Pump module for charging the spring assembly, now uses gearless technology for maximum reliability 4 Control module High precision valve module to control the operation, slip-on coils for easy exchange 5 Monitoring module Spring travel switch to monitor the status of the stored energy, simplified design, pressure relief valve 6 Adapter with auxiliary switches For adaptation to the circuit-breaker HMC-4 operating mechanism | 3 ABB AG High Voltage Products Brown-Boveri-Strasse 30 63457 Hanau-Grossauheim, Germany Phone: +49 621 381-3000 Fax: +49 621 381-2645 Email: [email protected] www.abb.com/highvoltage Operating mechanism on the web To get more information, install QR code reader on your mobile device, scan the code and see more. 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 AG 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 contents - in whole or in parts - is forbidden without prior written consent of ABB AG. Copyright© 2013 ABB All rights reserved 1HDX580504 en printed in Germany (10.13) Contact us