Category: ABB

Construction

Hardware

The REG216 device consists of two main components, which are physically separated from each other and connected by standard prefabricated shielded cables

Connected by standard prefabricated shielded cables:

– The main system interface (CT, PT and auxiliary relays), which provides DC isolation and EMI barriers.

Isolation and EMI barrier

– Parallel bus and associated electronic units (e.g. analog inputs and data processors / for signal conditioning and processing).

The complete protection scheme consists of a relatively small number of hardware modules, allowing subsequent expansion of the electronic units and interfaces. Each device frame provides 21 rack spaces.

All hardware can be housed in a single compartment, which provides further shielding against inductive interference and physical protection against dust, etc.

All hardware can be accommodated in a single compartment, which provides further shielding from inductive interference and physical protection from dust.

The REG216 is available in 17 predefined rack configurations with a limited number of I/Os, but is equipped with the same SW library as the classic system.

Protective relays for other functions are not part of the EG216 and can be installed in compartments and interconnected with the REG216 accordingly.

* Arc protection

* Two lens sensors for arc detection (optional)

* Automatic adjustment of reference level according to backlight intensity

* Arc detection by remote light signal

* Automatic reclosing 1…. .3 times

* Circuit breaker fault protection

* Trip counter for circuit breaker status monitoring

* Trip circuit monitoring with routing of warning signals to signal outputs

* Trip lockout function

* Four accurate current inputs

* User selectable rated frequency 50/60 Hz

* Three normally open power output contacts

* Two change-over signaling output contacts and three additional change-over signaling output contacts on optional I/O module

* Output contact functions can be freely configured according to requirements.

Product overview

3.1 Purpose of the relay

The feeder protection relay REF610 is a multifunctional protection relay primarily used to protect incoming and outgoing lines in various feeder applications.

The relay is based on a microprocessor environment. A self-monitoring system continuously monitors the operation of the relay.

The human-machine interface includes a liquid crystal display (LCD) that makes local use of the relay safe and easy.

The relays can be controlled locally via serial communications from a computer connected to the front communication port.

Remote control is available through a serial communications bus connected to the rear connector of the control and monitoring system.

3.2. Features

* Three-phase non-directional overcurrent protection with timing or IDMT characteristics and low rectification phase.

* Three-phase non-directional overcurrent protection, high rectification phase

* Three-phase non-directional overcurrent protection, instantaneous stage

* Non-directional ground fault protection with timing or IDMT characteristics, low setting stage

* Non-directional ground-fault protection, high-calibration phase.

* Phase discontinuity protection

* Three-phase cable thermal overload protection

Outputs

The relay is equipped with

* three power output contacts PO1. PO2 and PO3

* two signal output contacts SO1 and SO2

* three optional signal output contacts SO3. SO4 and SO5

Switch group SGR1…. .8 is used to route internal signals from the protection stage, external trip signals and signals from the automatic reclosing function to the required signal or power output contacts.

The minimum pulse length can be configured as 40 or 80 ms and the power output contacts can be configured as latching.

Trouble Logger

The relay has a built-in disturbance logger that records the instantaneous measured value or the RMS curve of the measured signal.

and up to eight user-selectable digital signals: digital input signals and internal signals from the protection stage.

Any digital signal can be set to trigger the recorder on the falling or rising edge.

REF620 as a dedicated 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, utilizing the unit’s advanced station-to-station communication capabilities, the REF620 can also be used for ring mesh distribution network or radial network protection.

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 motorized disconnect and ground 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.

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 minimize 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 specialized ones, for example for line differential protection.

Main advantages

Devices can be used for a wide range of applications

Ranging from simple protection devices as backup protection to specialized protection devices

Well-established and modernized technology

Arc detection as an option

Concept

The TEIP11-PS signal converter converts standard electrical signals (e.g. 4 to 20 mA) to 0.2 to 1 bar (3 to 15 psi).

It is therefore the link between electrical/electronic and pneumatic systems.

The signal conversion process is similar to the patented force balancing method.

The TEIP11-PS signal converter is characterized by relatively small dimensions and excellent operational stability in the event of shock and vibration.

The converter can withstand loads of up to 10 g with less than 1% impact on functionality.

The housing units are available in a wide range of models to suit your installation requirements.

For potentially explosive environments, units are available in intrinsically safe operation or in pressure-resistant packages with international approvals for worldwide use.

Both inputs and outputs are available with different ranges of signal conversion.

The unit requires only 1.4 bar (20 psi) compressed air for power.

Rail-Mounted Control Room Enclosure Units

The rail-mounted control room enclosure is the simplest and least expensive version of the I/P signal converter.

It is mounted using a mounting base that is compatible with all commercially available EN rails.

The enclosure with plastic cover is IP 20 rated.

Block-mounted control room housing units

The block-mounted control room housing unit allows the installation of several converters in a small space.

This design enables a central air supply via connection blocks and shut-off valves in the air connectors of the integrated signal converters.

Up to 4 signal converters can be mounted on the connection blocks required for modular installation.

If necessary, 2 or 3 (or up to 4) connection blocks can be interconnected to form a block unit with 4-8-12-16 signal converters.

Individual transducers can be mounted or dismounted during operation by means of shut-off valves.

Concept

The TEIP11 signal converter converts standard electrical signals (e.g. 4 to 20 mA) to 0.2 to 1 bar (3 to 15 psi).

It is therefore the link between electrical/electronic and pneumatic systems.

It is the link between the electrical/electronic and the pneumatic system. The signal conversion process is similar to the patented force balancing method.

The TEIP11 signal converter is characterized by relatively small dimensions and excellent operational stability when subjected to shock and vibration. 

The converter can withstand loads of up to 10 g with less than 1% impact on functionality.

The housing units are available in a variety of versions to suit your installation requirements.

For potentially explosive environments, units are available in intrinsically safe operation or in pressure-resistant packages with international approvals for worldwide use.

Both inputs and outputs are available with different ranges of signal conversion.

The devices require only 1.4 to 10 bar (20 to 145 psi) of compressed air for power.

To ensure smaller dimensions and lower costs, the pneumatic unit does not include an aerodynamic stage.

This reduces air capacity and means that the I/P signaling converter can only be used to control low-flow air systems.

Applications

The AquaTrans AT868 Liquid Flow Transmitter is a complete ultrasonic flow metering system for measuring the following liquids:

– Drinking water

– Wastewater

– Sewage

– Discharge water

– Treated water

– Cooling and heating water

– Other liquids

Features

– Economical, non-intrusive flow measurement

– Simple setup and installation

– Suitable for a wide range of pipe sizes and materials

– Suitable for lined pipes

– Dual channel/dual path versions available

– Velocity, volume and totalized flow

– Built-in keypad for field programming

The REJ603 relay is used for selective short-circuit and earth-fault protection of feeders in secondary distribution networks, as well as for transformer protection in utilities and industry.

The relay is a self-powered digital relay that does not require an external auxiliary supply voltage, making it ideal even for installations in remote areas where auxiliary power is not available.

The relay operates from a current transformer.

The REJ603 is mainly used in Ring Main Units (RMUs) in distribution networks.

The relay provides earth current measurement by internal calculation, or it can measure earth current from an external core balanced current transformer (CBCT).

The main features of the relay are

Self-powered three-phase non-directional overcurrent and earth fault protection with DMT and IDMT characteristics

Dual earth fault measurement modes – internal vector summing or external CBCT inputs

Integration of IDMT curves (IEC and special) in a single product to meet the time-coordinated requirements of secondary distribution protection

Protection blocking via second harmonic measurement to ensure stability during transformer magnetic surges

Capacitive discharge pulse output for low-energy trip coils

Built-in manual reset electromechanical sign for trip indication

Easy setup via DIP switches, protected by transparent cover

Compact design and mounting for ring main unit (RMU) applications

Test equipment for testing the entire program, including primary CTs, relays and trip coils