Category: ABB

• Directional overcurrent protection with four steps for each winding

– Each step can be inverse or definite time delayed

– Each step can be directional or non-directional

• Instantaneous high speed earth fault function with low transient overreach

• Directional earth fault protection with four stages for each winding

– Each step can be inverse or definite time delayed

– Each step can be directional or non-directional

– Each step can be blocked on second harmonic component

• Synchrocheck function for single- or multi-breaker arrangements:

– Selectable energizing direction

– Two functions with built-in voltage selection

• Selectable additional software functions such as

breaker failure protection for each breaker, voltage protection, overexcitation protection, control and monitoring

• Tripping from Buchholtz, temperature devices etc. through binary inputs stabilized against capacitive discharges

• Built-in data communication modules for station bus IEC 61850-8-1

• Data communication modules for station bus IEC 60870-5-103. LON and SPA

• Integrated disturbance and event recorder for up to 40 analog and 96 binary signals

• Time synchronization over IEC 61850-8-1. LON, SPA, binary input or with optional GPS module

• Analog measurements accuracy up to below 0.5% for power and 0.25% for current and voltage and with site calibration to optimize total accuracy

• Versatile local human-machine interface

• Extensive self-supervision with internal event recorder

• Six independent groups of complete setting parameters with password protection

• Powerful software PC tool for setting, disturbance evaluation and configuration

• Remote end data communication modules for C37.94 and G.703

Features

• A protection, control, and monitoring IED with extensive functional library and configuration

possibilities and expandable hardware design to meet specific user requirements

• For power transformers, autotransformers, shunt reactors, T-protection, generator transformer

blocks, phase shifting transformers and small busbar systems

• For two- and three-winding transformers with up to six stabilized inputs

• For multi- or single-breaker arrangements

• Transformer differential protection with:

– Percentage bias restraint for through faults

– Waveform and Second harmonic restraint for transformer inrush

– Fifth harmonic restraint for overexcitation

– High sensitivity for interturn faults

• Restricted earth fault protection for all direct or low impedance earthed windings

– Extremely fast operation

– High sensitivity

– High and low impedance based

• Full scheme phase-to-phase and phase-to-earth distance protection with up to five zones:

– Load encroachment feature

• Instantaneous high speed short circuit function with low transient overreach

The REF620 is a member of the 620 Protection, Measurement and Control product family within the ABB Relion® product family.

Key benefits

• Protection, control, monitoring and management integrated in a single relay provides a compact and versatile solution for public and industrial power distribution systems
• Wide range of protection and control functions, either with sensors or conventional CTs and PTs
• Functional scalability and wide range of applications allow users to easily customise configuration applications to meet specific requirements
• Pluggable design for quick installation and testing
• Large LCD screen with single-line graphic display, accessible locally or via an easy-to-connect and navigate HMI
• Thoughtful product lifecycle service

Key Features

• Wide range of protection and control functions for incoming or outgoing applications
• Multi-frequency conductive earth protection package with high sensitivity and selectivity
• Advanced and fast short-circuit and earth-fault location functions
• Several optional function packages – for distributed generation, capacitors, basic motor and arc-light protection
• Supports IEC61850 Version 1 and 2, including redundant HSR and PRP, GOOSE and IEC61850-9-2
• Supports Modbus, DNP3, IEC 60870-5-103 communication protocols and different time synchronisation methods, including IEEE 1588 v2 precision time protocols

REF620 as a specialised feeder protection device for the protection, control, measurement and monitoring of public and industrial power distribution systems

REF620 IEC feeder protection and measurement and control device, as a dedicated feeder protection device, is specially designed for the protection, control, measurement and monitoring of public and industrial grids, including radial, ring and mesh grids.

The REF620 provides feeder overcurrent and earth fault protection that can be applied to both ungrounded neutral networks and resistance or impedance neutral grounded networks.

In addition, the REF620 can also be used for ring mesh distribution or radial network protection, utilising the unit’s advanced inter-station communication capabilities.

The REF620 IEC Feeder Protection and Measurement Control Unit is available in single and dual busbar configurations, with one or two circuit breakers and multiple switchgear configurations for each busbar configuration.

The unit supports a large number of manual and motorised disconnect and earth switches. The number of available I/Os can be increased as required by ABB’s RIO600 remote I/O unit.

The REF620 IEC Feeder Protection and Control Unit features support for the IEC61850 communication standard for substations, covering both vertical and horizontal communications.

It includes GOOSE telegrams with switching and analogue signals and constant value adjustment based on IEC 61850-8-1.

The REF620 also supports DNP3, IEC 60870-5-103 and Modbus® protocols.

The REF620 provides an optional Ethernet port for non-delayed redundant Ethernet or a ring self-healing RSTP communication in the event of a communication failure via PRP or HSR protocols.

This solution eliminates the effects of a single point of failure and improves communication reliability. The solution can be applied to Ethernet based IEC 61850, Modbus® and DNP3 protocols.

Relay protection for overhead lines and cable feeders in distribution networks for different application areas

Feeder protection, precisely the protection of overhead lines and cables, is the most commonly used type of protection.

The protection must ensure that the grid continues to supply power. In the event of a fault, it must be prevented from propagating to the normal part of the network.

Relay protection must also minimise damage to cables and other connected equipment from faults and ensure the safety of everyone involved.

ABB offers a wide range of feeder protection. There is a wide range of multifunctional relays for different application areas.

There are some for general feeder protection (overcurrent protection) and backup protection, and some more specialised ones, e.g. for line differential protection.

Main advantages

• Devices can be used for a wide range of applications
• Ranging from simple protection devices as back-up protection to specialised protection devices
• Well-established and modern technology
• Arc detection as an option

The OCAH 940181103 is a high-performance processor unit designed for the System 800xA distributed control system.

The OCAH 940181103 processor unit has the following key features:

High performance: Equipped with a powerful multi-core processor and a large amount of memory, it can handle multiple tasks together and process large amounts of data quickly to meet the needs of various industrial control applications.

High reliability: The processor has built-in redundancy to ensure high system availability and reliability even in the case of hardware defects.

Communication talent: Supporting various communication protocols such as Ethernet, Profibus and Modbus, it is convenient to communicate with various I/O modules and other device interfaces.

Diagnostics and Defect Cleanup: The processor unit features advanced diagnostics and defect cleanup functions, including comprehensive work logging

and a built-in Web server for remote access and monitoring, helping to quickly identify and address potential problems.

940181103 OCAH processor units are used in a wide range of applications in oil and gas, power generation, chemical processing, electrical power systems, metal processing,

Food and Beverage, Pharmaceutical, Paper, Textile, Automotive, Railroad, and Marine jobs to meet the needs of chaotic control and automation applications.

Please note that product parameters and features may be updated due to changing skills and market conditions.

The counter of the ABB OCAH 940181103 has three inputs count, reset and set value; and two outputs-complete value and current value.

A count input is required to provide a counter for counting pulses, a resetinput is required to reset the counter, and a set value is required to provide a set count for the counter.

The done output is used to indicate that the counter has finished counting, and the Current Value shows the current value that the counter has counted so far.

The concept of security zoning is described in IEC62443. In short,

security zoning is a method to segment a system into zones with

different security levels. A security level is complied with by

implementing a combination of security counter measures. The

reason why it potentialy could make sense to divide a system into

security zones, which comply with different security levels, could be

that the risk for different parts of the system varies. Another could be

that the impact of a potential incident varies.

Features and benefits

• NE870 has a redundant power supply and alarm function

• Wide operating voltage range (16 VDC to 60 VDC)

• Back end holds a casted DIN clip for stable mounting on a DIN-rail

• Digital IO for monitoring

• Console port for management using CLI

• USB port for easy save and load system configuration

• 3 x RJ-45 10/100/1000 Ethernet TX connectors

• 8 x RJ-45 10/100 Ethernet TX connectors

• Status LED‘s

The Solution

The use of a Contrac continuous electric actuator ensures ideal positioning of the water spray control valve.

Even high temperature models with ambient temperatures up to 85 °C can achieve S9-100 % duty cycles without restriction.

The special design of the Contract actuator, with oil-lubricated spur gears and electrical components for S9-100 % duty cycles, allows high precision in the positioning of the sprinkler valve.

High precision and true continuous positioning of the water spray valve is achieved.

Due to the special design and operating principle of the Contrac actuator, the dead band is only ±0.05 %.

This precision allows for highly accurate positioning of all types of valves over the entire range.

All components are IP66 rated and can be used even under the harshest environmental conditions.

CONTEC motorized linear actuator type RSD with power electronics unit EBN853

Oil-lubricated spur gears with ball bearing spindles ensure

– wear-free operation

– Max. operating temperature 85 °C

– Robust design

– Precise control of the injected water by means of high-precision positioning

– IP rating IP66

Contrac – Electric Actuators

Introduction

The water injection valve on a steam boiler controls the amount of cooling water injected into the superheated steam in the superheater and reheater.

The amount of water injected is decisive for the temperature of the steam inside and at the output of the superheater.

Too much water injection can lead to excessive cooling of the steam, which negatively affects efficiency.

On the other hand, insufficient water injection leads to excessive steam temperature and pressure.

The risk of damage to the superheater, turbine and downstream components increases as a result.

For optimal operation of the superheater at the lowest possible steam temperature and the highest possible hot steam temperature, the

continuous and precise mass flow control of the injected cooling water is first required.

Depending on the operating conditions, this requirement means that very small amounts of water need to be supplied, thus requiring highly accurate positioning in disproportionate areas of the valve.

The operating environment is extremely harsh.

In addition, the ambient temperature in the superheater area can be very high.

ABB’s measurement and analysis portfolio

– Analytical Measurement

– Flow measurement

– Pressure measurement

– Temperature measurement

– Level measurement

– Actuators and Positioners

– Recorders and Controllers

– Device Management, Fieldbus and Wireless

– Force Measurement

– Services

ABB’s extensive line of damper actuators provides quality, robustness and performance for a wide range of industries, especially power utilities.

They excel in applications where precise control and speed can save fuel costs or improve efficiency, such as forced and induced draft dampers.

They utilize powerful digital technology to provide precise control and built-in diagnostics.

Meeting your valve control needs Starting with electrical actuators, ABB offers a comprehensive range of products that are designed, engineered and manufactured to deliver best-in-class performance for your process.

ABB’s extensive portfolio of actuators and positioners provides your control valves with the highly accurate and stable positioning that is critical to achieving your operational goals:

– Energy efficient processes

– High production quality

– Reliable performance

– Maximum output at minimum cost

How can ABB help you?

ABB provides all the final control components you need, including

– Continuous electric actuators

– Tools to select the best actuation technology for your process

– Technical support and servicesLearn how you can benefit!