HMC-4 operating mechanism Designed for reliable switching Product brochure

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: powertech@de.abb.com
www.abb.com/highvoltage
Operating mechanism on the web
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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)
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