Category: ABB

Function Modules

Ekip Power Modules

The Ekip Power Module supplies power to all Ekip striker and modules present on the terminal box and circuit breakers from multiple auxiliary power sources (AC or DC) available in the switchgear.

The Ekip Power Module supplies power to all Ekip strippers and modules present on the terminal box and circuit breakers.

The module is mounted in the terminal box to allow installation of other advanced modules.

It can be installed in the field at any time.

Two versions are available depending on the control voltage:

– Ekip Power Module (110-240V AC/DC)

– Ekip power modules (24-48V DC)

Actuating circuit breakers

The Emax 2 Harness double-conversion system allows the choice of ABB Emax 2 actuating circuit breakers depending on the application.

This includes different types of circuit breakers, different rated currents, different breaking classes, different Ekip intelligent circuit breakers and different numbers of poles;

A wide range of accessories can be added as required, allowing for a customised power conversion solution.

The Emax 2 Smart Tripper also contains an internal electrical interlock circuit to ensure the safety of the power supply.

It contains the following

Electrical interlocking function:

– The controller has an embedded logic lock to avoid incorrect closing/closing signals;

– No parallel operation during automatic changeover, the three switches cannot be closed in automatic mode;

– Manual key changeover for ‘non-parallel operation’ ensures no parallel operation and operation, even after partial disconnection of the control line, with safety interlocks to ensure safety.

Optional accessories

The Emax 2 Harness Dual Switching System actuating circuit breakers can be supplied with a wide range of optional accessories.

– Mechanical interlocks

– Opening position locking

– External transformer for earth fault protection

– Communication modules

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Self-throw without self-recovery

When one of the two power supplies fails, it will automatically disconnect and switch to the other one to supply power to the load.

When the faulted power supply returns to normal, it is necessary to select the self-recovery button or operate manually to return to the state of ‘CB1 closing/CB3 opening/CB2 closing’.

Manual switching of operating modes (non-parallel)

The Harness system can also be operated manually via the control panel, which allows manual control of the CB1 closing/ CB3 opening/ CB2 closing by means of the closing and splitting buttons.

The manual mode of operation is a ‘non-parallel’ mode, which supports electrical interlocking to prevent manual operation. At the same time, it supports the function of disconnection blocking, which guarantees the safety of the power supply system.

The power supply system is safe and secure. The parallel switching mode is used for planned maintenance or power failure of the incoming power supply line.

The CB1/CB2 is operated in the form of a ‘close first, split second’ mode to ensure that there is no interruption of power supply during the conversion process.

(The parallel connection time of power supply 1/2 is not more than 200ms.) At the same time of parallel connection operation, the synchronisation verification module detects the synchronisation condition of the two power supplies.

If the two power supplies are in the synchronous state, the synchronous indicator will light up automatically, and you can enter the manual parallel conversion operation;

If the conditions for parallel connection are not sufficient, the synchronisation indicator goes out, the circuit breaker automatically locks the closing function of the mother switch, and the parallel conversion operation cannot be completed.

Conversion Function

Automatic Operating Mode

The Harness system can be put into automatic conversion mode by using the operating mode selection button on the operation panel.

In the automatic conversion mode, the system will automatically detect the two power sources and judge whether the two power sources are normal or not.

When one of the power supply fails, the system will carry out automatic power conversion; at the same time, in order to adapt to the fluctuation of the power grid, the conversion process can support the action delay setting.

Self-input and self-recovery

When one of the two power sources fails, the system will automatically disconnect and switch to the other one to supply power to the load.

When the faulty power supply returns to normal, it will automatically return to the state where the two power supplies are powered separately.

High reliability and availability

The PDP800 supports full redundancy at all levels, including the PDP800 module, power supply, PROFIBUS DP link, and controller communication bus (HN800).

All redundancy options are independent of each other to ensure the highest level of availability and reliability.

Data Accessible to Control Applications

The functionally coded control application in the Symphony Plus controller has access to PROFIBUS device cycle data.

The data can be calculated, used as part of a control strategy, or displayed and alarmed at the S+ operator console.

An overview of the functions of the PDP800 is shown in Figure 2.

Managing Intelligent Field Devices

PROFIBUS devices are fully integrated into the Symphony Plus system, bringing benefits that go far beyond reduced footprint and cable costs.

In the S+ Engineering Workbench, field engineering tools support configuration, commissioning and maintenance of PROFIBUS devices using Device Type Manager (DTM) technology.

For field devices with a conventional device description file (GSD), standardised configurations are possible using the basic PROFIBUS DTM.

Individual device DTMs can be accessed from multiple data views (e.g. system or location overview, etc.) in Composer.

It includes automatic calculation of net values and loading of process items by using the device-specific channel configuration generated from the DTM.

Comprehensive I/O Support

The PDP800 module connects Symphony Plus controllers to the S800 I/O via PROFIBUS DP V2. The S800 I/O offers options for all signal types.

The S800 I/O offers options for all signal types, from basic analogue and digital inputs and outputs to pulse counters and intrinsically safe applications.

PROFIBUS DP V2 supports the S800 I/O Event Sequence function, which time stamps events at the source with a 1 ms accuracy.

In addition, the PDP800 supports the connection of Symphony Plus controllers to S+ Turbine dedicated modules.

Specifically, via PROFIBUS DP V2. the HPC800 supports powerful turbine control solutions.

such as turbine protection (TP800), valve positioning (VP800), automatic synchronisation of generators (AS800) and condition monitoring (MCM800).

With fibre-optic extension, PROFIBUS I/O modules and devices can be placed up to 15 km away from the PDP800.

In addition, the PDP800 modules can be located up to 3 km away from the controller via redundant HN800 fibre optic communication.

Seamless Intelligent Field Device Integration

Symphony Plus controllers seamlessly integrate field devices via the PDP800 PROFIBUS interface module.

This allows access to a wide range of intelligent field devices, including transmitters, actuators, motor control centres (MCCs), flame scanners, intelligent electronics and more.

These devices come from ABB and other third-party vendors.

PROFIBUS I/O and associated control strategies are configured using ABB’s extensive field-proven standard function code algorithms and S+ Engineering’s graphical design tools.

In addition, these data are made available to other S+ system nodes (i.e. Control, Operations, Engineering and Information) via a redundant plant network (PN800).

PDP800 PROFIBUS interface features include

– Support for PROFIBUS DP V0. V1. V2

– Support for PROFIBUS PA devices via DP/PA linked devices

– Support for 1 ms device timestamps via PROFIBUS DP V2

– Support for electrical and fibre optic media for PROFIBUS DP links

– PROFIBUS DP link rate up to 12 Mbps

– PROFIBUS DP connections over fibre optics up to 15 km

Symphony® Plus is the next generation of ABB’s acclaimed Symphony family of centralised control systems.

There are more than 6.500 Symphony centralised control systems in operation around the world, including more than 4.500 in the power and water industries.

No other automation platform in power and water applications has such a long history and large installed base as Symphony.

For more than 30 years, ABB has evolved the Symphony family of products, ensuring that each generation enhances the capabilities of its predecessor.

and backward compatible with its predecessor, all in line with ABB’s long-held policy of ‘evolving, never outdated’.

Symphony Plus includes a complete set of standards-based control hardware and software for plant-wide automation requirements.

The SD series PROFIBUS interface PDP800 provides the connection between the Symphony Plus controller and the PROFIBUS DP communication channel.

This allows easy integration of intelligent devices such as smart transmitters, actuators and intelligent electronic devices (IEDs).

The information resident in each device can be used for control strategies and higher-level applications.

In addition to providing a tighter, more reliable process control solution, the PDP800 PROFIBUS solution reduces installation costs by reducing cabling and system footprint.

System costs can be further reduced by using S+ Engineering to configure and maintain the PROFIBUS network, devices and their associated control strategies.

SD Series PDP800: Redundant Configuration

Overview

RET615 is a dedicated transformer protection and control relay for power transformers,

unit and step-up transformers including power generator-transformer blocks in utility and

industry power distribution systems. RET615 is a member of ABB’s Relion® product

family and part of its 615 protection and control product series. 

The 615 series relays are characterized by their compactness and withdrawable-unit design.

Re-engineered from the ground up, the 615 series has been designed to unleash the full

potential of the IEC 61850 standard for communication and interoperability between

substation automation devices. Once the standard configuration relay has been given the

application-specific settings, it can directly be put into service.

The protection relay can support five simultaneous clients. 

If PCM600 reserves one client connection, only four client connections are left, for example, for IEC 61850 and Modbus.

All communication connectors, except for the front port connector, are placed on

integrated optional communication modules. 

The protection relay can be connected to Ethernet-based communication systems via the 

RJ-45 connector (100Base-TX) or the fiber optic LC connector (100Base-FX).

Protection functions

The protection relay offers integrated protection functions including two-stage 

overvoltage and undervoltage protection, two-stage residual overvoltage protection, 

as well as singlestage negative phase-sequence overvoltage protection and 

single-stage positive phase-sequence undervoltage protection.

Measurement

The protection relay physically measures the three phase-tophase voltages and the residual voltage of the power system.

Further, from the phase-to-phase voltages the protection relay

calculates the positive and negative phase-sequence voltages,

the one-minute average phase-to-phase voltage, the average

phase-to-phase voltage for a user-specifiable time frame, the

maximum value of the one-minute average voltage, and the

maximum and minimum phase-to-phase voltage value since last reset.

The values of the voltages measured or calculated can be

accessed locally via the user interface on the protection relay’s

front panel, or remotely via the serial communication interface

on the rear panel of the protection relay.

Disturbance recorder

The protection relay is provided with a built-in battery backedup digital 

disturbance recorder for four analog signal channels and eight digital signal channels. 

The analog channels can be set to record the curve form of the voltages measured. 

The digital channels can be set to record external or internal relay

signals, for example the start or trip signals of protection relay’s

stages, external blocking or control signals. Any digital relay

signal such as a protection start or trip signal, or an external

relay control signal can be set to trigger the recording. 

The recordings are stored in a nonvolatile memory from which the

data can be uploaded for subsequent fault analysis.