DISTRIBUTION SOLUTIONS Recommended offering for medium-voltage switchgear Distribution Automation
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Recommended offering for medium-voltage switchgear Distribution Automation

2 RECOMMENDED OFFERING FOR MEDIUM-VOLTAGE SWITCHGEAR 3 ABB’s power protection philosophy 4 Relion® protection and control relays 16 Capacitor bank protection 22 Centralized protection and control 30 Compact power management Automatic transfer systems

— ABB’s power protection philosophy — 01 Example of ABB power system using Relion protection relays, all-in-one communication gateway COM600 and MicroSCADA Pro/ System 800xA Having delivered protection relays to more than 100 countries, ABB fully understands the need for diverse protection philosophies that meet local legislation, safety requirements and engineering practice. Therefore, ABB has developed a power protection philosophy that not only serves the specific needs and requirements of diverse power systems, but also creates confidence and peace of mind for both the power system...

Relion® protection and control relays The Relion® product family offers the widest range of products for the protection, control, measurement and supervision of power systems for IEC and ANSI applications – from generation and interconnected transmission grids over primary distribution to secondary distribution kiosks. The Relion protection relays are deeply rooted in ABB’s vast experience of developing successful protection and control relays. These relays have been developed during many years and are built on the experience gathered from wide ranging application and functionality...

DISTRIBUTION AUTOMATION Relion 605 series The Relion 605 series protection relays feature basic devices that fulfill the essential protection needs in medium-voltage networks. The series is best suited for secondary distribution applications. These relays are well-known for their straight forward approach to protection. Relion 611 series The Relion 611 series protection relays are powerful and very easy-to-use protection devices in a compact design. The 611 series relays are delivered with a pre-configured application, which can be adapted, to a limited extent, to application-specific...

RECOMMENDED OFFERING FOR MEDIUM-VOLTAGE SWITCHGEAR Feeder protection, or more exactly protection for overhead lines and cables, is the most used type of protection in power systems. The protection has to ensure that the power grid continues to supply energy. In the event of a fault, it has to be prevented from spreading to healthy parts of the network. The relays also have to minimize the damage to the cables and other connected equipment, as well as ensure safety for operating personnel. ABB has a large number of feeder protection relays. There are several multifunctional protection relays...

ARTICLE OR CHAPTER TITLE 01 Basic range: Feeder protection REF601 and self-powered feeder protection REJ603 02 Medium range: Feeder protection and control REF611, Feeder protection and control REF615 03 High range: Feeder protection and control REF620, Feeder protection and control REF630 and Multiapplication Protection and Control REX640 Relion 620 series The Relion 620 series offers flexibility and performance for demanding power distribution in utility and industrial applications. The series offers wider application coverage in one product compared to the 615 series, which enables wider...

RECOMMENDED OFFERING FOR MEDIUM-VOLTAGE SWITCHGEAR The power transformer is an important component and one of the most valuable discrete units in power distribution networks. High availability of the power transformer is of particular importance for preventing disturbances in the power distribution system. Although high-quality power transformers are very reliable, insulation breakdown faults occasionally occur. These faults appear as short circuits and/or earth faults. They tend to cause severe damage to the windings and transformer core. The damage is proportional to the fault clearing...

01 Transformer protection and control RET615, Transformer protection and control RET620, Transformer protection and control RET630 and Multiapplication Protection and Control REX640 For more information, please refer to the following documentation: • Transformer Protection and Control RET615 Product Guide • Voltage Protection and Control REU615 Product Guide • Transformer Protection and Control RET620 Product Guide • Transformer Protection and Control RET630 Product Guide • Multiapplication Protection and Control REX640 Product Guide

RECOMMENDED OFFERING FOR MEDIUM-VOLTAGE SWITCHGEAR Motor protection is generally expected to provide overcurrent, unbalance, earth-fault and short-circuit protection of the motor. However, the fundamental issue for motors is thermal protection, as overheating is the worst threat. Motors need to be protected not only against electrical faults, but also against any improper usage. ABB's solutions focus on advanced thermal protection that prevents improper use. Overload conditions of short duration mainly occur during start-up. Improper use of running motors does not necessarily damage the...

DISTRIBUTION AUTOMATION For more information, please refer to the following documentation: • Motor Protection and Control REM611 Product Guide • Motor Protection and Control REM615 Product Guide • Motor Protection and Control REM620 Product Guide • Motor Protection and Control REM630 Product Guide • Multiapplication Protection and Control REX640 Product Guide 01 Basic range: Motor protection and control REM601 02 Medium range: Motor protection and control REM611, Motor protection and control REM615 03 High range: Motor protection and control REM620, Motor protection and control REM630 and...

RECOMMENDED OFFERING FOR MEDIUM-VOLTAGE SWITCHGEAR Generators or generating units constitute one of the most crucial parts in a power system, making it essential to use a proper protection scheme. A generator has more failure modes than any other component in the power system. It is very important that the protection system detects all faults and that it does so quickly, as they may cause injury to personnel and damage to the equipment. It is common practice that earth faults, short circuits and other severe faults must be detected by two independent protection devices. The fault must be...