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ABB Transformer protection RET670 Pre-configure Application

Application

Versatile phase, earth, positive and zero sequence overcurrent functions, which can

optionally be made directional and/or voltage controlled, provide further alternative backup

protection. Thermal overload with two time constants, volts per hertz, over/under voltage and

over/under frequency protection functions are also available.

A built-in disturbance and event recorder provides valuable data to the user about status and

operation for post-fault disturbance analysis. Breaker failure protection for each transformer

breaker allows high speed back-up tripping of surrounding breakers.

The transformer IED can also be provided with a full control and interlocking functionality including

Synchrocheck function to allow integration of the main and/or a local back-up control.

Out of Step function is available to separate power system sections close to electrical centre

at occurring out of step.

The advanced logic capability, where user logic is prepared with a graphical tool, allows special

applications such as automatic opening of disconnectors in multi-breaker arrangements,

closing of breaker rings, load transfer logic and soon. The graphical configuration tool ensures

simple and fast testing and commissioning.

Serial data communication is via optical connections to ensure immunity against disturbances.

ABB RET670 The differential function

Application

The differential function offers a high sensitivity for

low-level internal faults. The unique and innovative

sensitive differential protection feature of the

RET670 provides the best possible coverage for

winding internal turn-to-turn faults, based on well

known theory of symmetrical components .

Low impedance restricted earth-fault protection

functions are available as complimentary sensitive

and fast main protection against winding earth

faults. This function includes a directional zero

sequence current criterion for additional security.

Additionally a high impedance differential function

is available.

It can be used as restricted earth

fault or, as three functions are included, also as

differential protection on autotransformers, as

differential protection for a tertiary connected

reactor, as T-differential protection for the

transformer feeder in a mesh-corner or ring

arrangement, as tertiary bus protection and so on.

Tripping from Pressure relief/Buchholz and

temperature devices can be done through the

transformer IED where pulsing, lock-out contact

output and so on, is performed. The binary inputs

are heavily stabilized against disturbance to

prevent incorrect operations at for example, dc

system capacitive discharges or DC earth faults.

Distance protection functionality for phase-to

phase and/or phase-to-earth faults is available as

back-up protection for faults within the

transformer and in the connected power system.

ABB Transformer protection RET670 Pre-configure

Application

RET670 provides fast and selective protection,

monitoring and control for two- and three-winding

transformers, autotransformers, generator

transformer units and shunt reactors. The

transformer IED is designed to operate correctly

over a wide frequency range in order to

accommodate power system frequency variations

during disturbances and generator start-up and shut-down.

A very fast differential protection function, with

automatic CT ratio matching and vector group

compensation, makes this IED the ideal solution

even for the most demanding applications. Since

RET670 has very low requirements on the main

CTs, no interposing CTs are required.

It is suitable for differential applications with multi-breaker

arrangements with up to six restraint CT inputs.

The differential protection function is provided

with 2nd harmonic and wave-block restraint

features to avoid tripping for magnetizing inrush

current, and 5th harmonic restraint to avoid tripping for overexcitation.

Rexroth VT 2000-52 Bosch Rexroth Electrical Amplifiers

The Downstream Ramp Generator [4] generates a ramp-shaped output signal from the step input signal.

The time constant of this signal can be adjusted to ramp up and ramp down using two potentiometers.

The specified ramp time is related to the command value step change of 100% and can be about 1 sec. or 5 sec.

depending on the jumper setting. If a command value step change of less than 100 % is applied at

the input of the ramp generator or when the attenuator [3] is set, the ramp time can be adjusted upwards and downwards.

or when the attenuator [3] is active, the ramp time is shortened accordingly.

With the aid of the external contact “ramp up/down”, the ramp time can be set to a minimum

value (approx. 30 ms) for the upper and lower ramp times respectively.

The output signal of the Ramp Generator [4] is an internal current command value and is fed

into the measurement socket “w” on the front panel of the card.

In addition, the command value is transferred to the current output stage [6] via the current regulator [5].

The current regulator [5] adds the value of the bias current potentiometer “Zw” (R130) to the value of the ramp generator.

The current command value is modulated by the clock pulse encoder signal [7].

The clocked actual current value acts like a constant current and superimposes a jitter signal in the valve solenoid.

The actual current value through the solenoid valve can be measured at socket “I”.

Here, a voltage of 800 mV corresponds to a current of 800 mA.

ABB ACS480 Boosting energy efficiency

Easiness with the built-in EMC C2 filter

High-frequency noise can directly affect sensitive electronic equipment and

high-speed communication fieldbuses. Each ACS480 drive is equipped with

a built-in EMC filter to reduce high-frequency emissions. The built-in EMC C2

filter allows the drive to be used in industrial and commercial (building)

environments without a need to buy and install any external filters.

Boosting energy efficiency

Energy efficiency information is available in the energy optimizer feature to help

you optimize your processes. The energy optimizer feature operates both in scalar

and vector control modes, ensuring maximum torque per ampere and reducing

energy drawn from the supply. You can follow the saved energy, CO₂ emissions

or money, and see how fast the drive brings you a return on investment.

ABB ACS480 Easiness with built-in brake chopper

Easiness with built-in brake chopper

A brake chopper is built-in as standard for all the ACS480 drives. The brake

chopper enables shorter and more accurate braking times, which instantly

increases productivity.

Easiness with the built-in EMC C2 filter

High-frequency noise can directly affect sensitive electronic equipment and

high-speed communication fieldbuses. Each ACS480 drive is equipped with

a built-in EMC filter to reduce high-frequency emissions. The built-in EMC C2

filter allows the drive to be used in industrial and commercial (building)

environments without a need to buy and install any external filters.

Boosting energy efficiency

Energy efficiency information is available in the energy optimizer feature to help

you optimize your processes. The energy optimizer feature operates both in scalar

and vector control modes, ensuring maximum torque per ampere and reducing

energy drawn from the supply. You can follow the saved energy, CO₂ emissions

or money, and see how fast the drive brings you a return on investment.

ABB general purpose drives ACS480

Instant availability

ACS480 products are available from central stocks around

the world for immediate delivery. The product is also

widely available from ABB distributors.

Maximum reliability

Design features like coated circuit boards, minimized

airflow through the control board section, earth fault

protection and design for 50 °C ambient temperature make

the ACS480 a safe choice. These features prolong the

lifetime of the drives and protect your applications from

unexpected downtimes. In addition, all the units are

tested during production in maximum temperature with

nominal loads.

Leverage the compact design of the ACS480 for a cost-effective and efficient solution.

The cabinet optimized design with built-in features and control functions provide you

with streamlined process automation and efficiency to improve your bottom line.

ABB AMVAC Indoor Vacuum Circuit Breaker

The new generation of circuit breakers, such as the ADVAC breaker with a torroidal spring, were

designed specifically for use with vacuum technology.

Each generation reflects the best technology available at the

time of their introduction, building on the strengths of previous designs, yet adding new innovations,

marking true turning points.

Although it is well established that vacuum interrupters are

capable of more than 10,000 operations, conventional stored

energy circuit breakers seldom operate beyond 10,000 operations without teardown,

re-lubrication, and/or replacement of parts.

More than 100 parts are required to perform spring charging, closing, anti-pumping and tripping

functions.

Conventional stored energy breakers also place limitations on the types of control voltages allowed. 

Vacuum interrupters were mounted in

open moldings, making them susceptible to dust, moisture, and corrosive atmospheres.

The AMVAC is truly the next generation in medium voltage vacuum technology. 

With the AMVAC, ABB is the first to combine

the unique requirements of vacuum interrupter technology to a

stored energy mechanism designed to exploit these capabilities.

Using a flux-shifting device with integral permanent magnets,

the AMVAC mechanism has just seven moving parts. Having

only an open/close actuator, an electronic controller, and capacitors for energy storage, the AMVAC

circuit breaker mechanism

is capable of 50,000 to 100,000 operations. Vacuum interrupters are embedded in a proprietary epoxy

material, achieving

excellent dielectric and thermal capabilities. Eliminating mechanism operated cell switches, the AMVAC

breaker packages all auxiliary control contacts on the circuit breaker. These are just a

few of the features that mark a departure from the conventional

stored energy breaker and introduce new capabilities and benefits for the modern power systems.

ABB PGC5000B Smart Oven PGC5000 Series gas chromatographs

Description

PGC5000B Smart OvenTM technology supports applications that require a single detector with up to

three analytical valves.

Advanced pressure, temperature and stream control software executes analytical methods required for

analyses. A single

PGC5000A Controller can support up to four PGC5000B Smart OvensTM reducing space and utility

requirements while

increasing applications flexibility

Physical

B-class oven:

Environmental (enclosure): Protected from weather: IP 54, (NEMA 3 Equivalent)

Ambient temperature range: 0 to +50° C (32 to 122° F)

Humidity: 95% relative humidity, non-condensing

Dimensions: 596.9 mm W x 419.1 mm D x 609.6 mm H

(23.5 in. W x 16.5 in. D x 24 in. H)

Weight: 60 kg (132 lb) (minimum, configuration dependent)

Mounting: Wall: 33 mm (1.3 in.) from wall with brackets

Floor: Optional dolly with casters

EMI/RFI considerations: Conform to class A industrial environment

Electrical entries: Left side

Pneumatic entries: Right side

Sample entries: Gas & Liquid: Right side

Vents: Right side

ABB The new PGC5000A Controller

Description

The new PGC5000A Controller is designed with a real time

embedded operating system (RTOS) to guarantee critical

system uptime, security and the highest level of data

determination. A local 10 inch graphical, SVGA touch screen

with multi-touch control for redundant methods of analyzer

navigation at the local analyzer interface constructed in a

Simple Tab Layout for ease-of-use.

Multiple configurations

— Supports up to 4 Smart OvensTM

Communication interfaces

— Communication interfaces:

Ethernet, OPC (via VistaGateway), MODBUS, 4-20mA

analogs, VistaNET2.0 compatible

Maximum application flexibility

— PGC5000B Smart OvensTM target simple applications

with a fixed set of features

— PGC5000C Smart OvensTM target complex applications

requiring multiple detectors for maximum application densificatio

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