Digital And Smart Grid Enterprises
Navi Mumbai, Maharashtra
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ALSTOM GE Transmission Protection

We are a leading Manufacturer of p543 current differential protection relays, p544 current differential protection relays, p545 current differential protection relays, p546 current differential protection relays, p541 current differential protection relays and p542 current differential protection relays from Navi Mumbai, India.
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P543 Current Differential Protection Relays
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P543 Current Differential Protection Relays

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The MiCOM Agile P543, P544, P545 & P546 range of transmission-class protection relays provide high speed current differential unit protection. They are designed for overhead line and cable applications, interfacing readily with the longitudinal (end-end) communications channel between line terminals. The interface options support direct fiber optic or multiplexed digital links.

Each of the models offer resident subcycle distance protection to complement the powerful suite of main and backup protection. Full scheme, five-zone distance protection is adopted from the class-leading MiCOMho MiCOM Agile P443. The product line becomes the standard in all HV, EHV and UHV line protection applications, duplicated where dual redundant main protection is demanded. Set any combination of differential, distance, overcurrent and reclosing, depending on the site needs. One universal relay type instead of two or more discrete models means reduced spares holding, less training, and lower cost. 

The MiCOM Agile P544 and P546 are suitable for the complex installation and feeders controlled by two circuit breakers such as breaker-and-a-half configurations with dual breaker autoreclose logic schemes with synchrocheck for both breakers.

Key benefits:

  • A universal relay that reduces spare holding - apply as a current differential relay, a distance relay, or both
  • Neutral differential boosts sensitivity of tripping for resistive earth faults, even for lines with heavy load-flow 
  • Transient biasing reduces CT knee point dimensioning by typically 25% compared to historical applications 
  • Differential protection adaptable to all different substation topologies: in-zone transformers and unequal line end CT ratios 

Main characteristics:

  • Comprehensive communication options including IEC 61850 Edition 1 and Edition 2
  • IEC 61850 redundant Ethernet, supporting self healing ring, RSTP, dual homing, PRP or HSR
  • Fast subcycle distance protection with 5 quadrilateral or mho zones and setting free power swing detection
  • InterMiCOM64 for transmitting 8 digital signals through teleprotection communication links

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P544 Current Differential Protection Relays
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P544 Current Differential Protection Relays

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The MiCOM Agile P543, P544, P545 & P546 range of transmission-class protection relays provide high speed current differential unit protection. They are designed for overhead line and cable applications, interfacing readily with the longitudinal (end-end) communications channel between line terminals. The interface options support direct fiber optic or multiplexed digital links.

Each of the models offer resident subcycle distance protection to complement the powerful suite of main and backup protection. Full scheme, five-zone distance protection is adopted from the class-leading MiCOMho MiCOM Agile P443. The product line becomes the standard in all HV, EHV and UHV line protection applications, duplicated where dual redundant main protection is demanded. Set any combination of differential, distance, overcurrent and reclosing, depending on the site needs. One universal relay type instead of two or more discrete models means reduced spares holding, less training, and lower cost. 

The MiCOM Agile P544 and P546 are suitable for the complex installation and feeders controlled by two circuit breakers such as breaker-and-a-half configurations with dual breaker autoreclose logic schemes with synchrocheck for both breakers.

Key benefits:

  • A universal relay that reduces spare holding - apply as a current differential relay, a distance relay, or both
  • Neutral differential boosts sensitivity of tripping for resistive earth faults, even for lines with heavy load-flow 
  • Transient biasing reduces CT knee point dimensioning by typically 25% compared to historical applications 
  • Differential protection adaptable to all different substation topologies: in-zone transformers and unequal line end CT ratios 

Main characteristics:

  • Comprehensive communication options including IEC 61850 Edition 1 and Edition 2
  • IEC 61850 redundant Ethernet, supporting self healing ring, RSTP, dual homing, PRP or HSR
  • Fast subcycle distance protection with 5 quadrilateral or mho zones and setting free power swing detection
  • InterMiCOM64 for transmitting 8 digital signals through teleprotection communication links

Yes! I am Interested
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P545 Current Differential Protection Relays
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P545 Current Differential Protection Relays

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The MiCOM Agile P543, P544, P545 & P546 range of transmission-class protection relays provide high speed current differential unit protection. They are designed for overhead line and cable applications, interfacing readily with the longitudinal (end-end) communications channel between line terminals. The interface options support direct fiber optic or multiplexed digital links.

Each of the models offer resident subcycle distance protection to complement the powerful suite of main and backup protection. Full scheme, five-zone distance protection is adopted from the class-leading MiCOMho MiCOM Agile P443. The product line becomes the standard in all HV, EHV and UHV line protection applications, duplicated where dual redundant main protection is demanded. Set any combination of differential, distance, overcurrent and reclosing, depending on the site needs. One universal relay type instead of two or more discrete models means reduced spares holding, less training, and lower cost. 

The MiCOM Agile P544 and P546 are suitable for the complex installation and feeders controlled by two circuit breakers such as breaker-and-a-half configurations with dual breaker autoreclose logic schemes with synchrocheck for both breakers.

Key benefits:

  • A universal relay that reduces spare holding - apply as a current differential relay, a distance relay, or both
  • Neutral differential boosts sensitivity of tripping for resistive earth faults, even for lines with heavy load-flow 
  • Transient biasing reduces CT knee point dimensioning by typically 25% compared to historical applications 
  • Differential protection adaptable to all different substation topologies: in-zone transformers and unequal line end CT ratios 

Main characteristics:

  • Comprehensive communication options including IEC 61850 Edition 1 and Edition 2
  • IEC 61850 redundant Ethernet, supporting self healing ring, RSTP, dual homing, PRP or HSR
  • Fast subcycle distance protection with 5 quadrilateral or mho zones and setting free power swing detection
  • InterMiCOM64 for transmitting 8 digital signals through teleprotection communication links

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P546 Current Differential Protection Relays
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P546 Current Differential Protection Relays

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The MiCOM Agile P543, P544, P545 & P546 range of transmission-class protection relays provide high speed current differential unit protection. They are designed for overhead line and cable applications, interfacing readily with the longitudinal (end-end) communications channel between line terminals. The interface options support direct fiber optic or multiplexed digital links.

Each of the models offer resident subcycle distance protection to complement the powerful suite of main and backup protection. Full scheme, five-zone distance protection is adopted from the class-leading MiCOMho MiCOM Agile P443. The product line becomes the standard in all HV, EHV and UHV line protection applications, duplicated where dual redundant main protection is demanded. Set any combination of differential, distance, overcurrent and reclosing, depending on the site needs. One universal relay type instead of two or more discrete models means reduced spares holding, less training, and lower cost. 

The MiCOM Agile P544 and P546 are suitable for the complex installation and feeders controlled by two circuit breakers such as breaker-and-a-half configurations with dual breaker autoreclose logic schemes with synchrocheck for both breakers.

Key benefits:

  • A universal relay that reduces spare holding - apply as a current differential relay, a distance relay, or both
  • Neutral differential boosts sensitivity of tripping for resistive earth faults, even for lines with heavy load-flow 
  • Transient biasing reduces CT knee point dimensioning by typically 25% compared to historical applications 
  • Differential protection adaptable to all different substation topologies: in-zone transformers and unequal line end CT ratios 

Main characteristics:

  • Comprehensive communication options including IEC 61850 Edition 1 and Edition 2
  • IEC 61850 redundant Ethernet, supporting self healing ring, RSTP, dual homing, PRP or HSR
  • Fast subcycle distance protection with 5 quadrilateral or mho zones and setting free power swing detection
  • InterMiCOM64 for transmitting 8 digital signals through teleprotection communication links

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P541 Current Differential Protection Relays
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P541 Current Differential Protection Relays

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Line Differential Protection Systems

The MiCOM Agile P541 & P542 series provide high speed current differential unit protection. They are designed for overhead line and cable applications, interfacing readily with the longitudinal (end-end) communications channel between line terminals. The interface options support direct fiber optic or multiplexed digital links.

Key features:

  • Differential protection adaptable to different substation topologies: e.g. 2 or 3 terminal lines/cables, in-zone transformers, 3 pole tripping
  • An ideal economy solution for distribution applications
  • Small case width eases retrofitting tasks

Main characteristics:

  • Choice of communication protocols (IEC 60870-5-103, Modbus & Courier)
  • Time synchronization via RS485, IRIG-B (modulated/unmodulated) or opto inputs
  • Harsh environment coating as standard to all MiCOM relay to protect against corrosive gases such as H2S or SO2
  • InterMiCOM for transmitting 8 digital signals through teleprotection communication links
  • 4 independent setting groups

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P542 Current Differential Protection Relays
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P542 Current Differential Protection Relays

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Line Differential Protection Systems

The MiCOM Agile P541 & P542 series provide high speed current differential unit protection. They are designed for overhead line and cable applications, interfacing readily with the longitudinal (end-end) communications channel between line terminals. The interface options support direct fiber optic or multiplexed digital links.

Key features:

  • Differential protection adaptable to different substation topologies: e.g. 2 or 3 terminal lines/cables, in-zone transformers, 3 pole tripping
  • An ideal economy solution for distribution applications
  • Small case width eases retrofitting tasks

Main characteristics:

  • Choice of communication protocols (IEC 60870-5-103, Modbus & Courier)
  • Time synchronization via RS485, IRIG-B (modulated/unmodulated) or opto inputs
  • Harsh environment coating as standard to all MiCOM relay to protect against corrosive gases such as H2S or SO2
  • InterMiCOM for transmitting 8 digital signals through teleprotection communication links
  • 4 independent setting groups

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P54B Multi-ended Line Differential Protection Systems
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P54B Multi-ended Line Differential Protection Systems

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The MiCOM P54A/B/C/E range is designed for overhead line and cable applications up to 6 terminals, interfacing readily with the longitudinal (end-to-end) communications channel between line terminals. Previously, transmission and distribution circuits would have two or three ends only, whereas five or more ends are becoming common to connect renewable generation. All models are ready for protection topologies ranging from two to six terminals, whether those multi-terminals exist now, or are provisioned for connection in the future.

Multi-ended current differential protection uses a high-speed and innovative biased differential characteristic. Phase-segregated differential elements provide consistent detection of solid and resistive faults.

Key features:

  • Current differential protection for up to 6 line or cable ends, maximising connection of renewable generation, reducing greenhouse gas emissions
  • Subcycle tripping time up to 4-ended topology (<1.25 cycle for 5 or 6 ends)
  • Highly selective and sensitive unit protection, with capacitive current compensation for long lines or cables
  • Ability to locally take any end off-line for maintenance
  • Full support of SONET/SDH channel switching
  • Suitable for direct fibre and multiplexed (IEEE C37.94) networks, including MPLS systems
  • Full suite of monitoring, control and recording capabilities plus fault locator, autoreclose and check synchronism
  • 8 teleprotection logic bits from and to each end via MODEM, fibre, or MUX channel
  • Compatibility with modern Ethernet communications equipment
  • New CT saturation technique reduces CT dimensioning requirements and saves on scheme cost
  • Advanced IEC61850 Edition 2 implementation with complete settings via SCL files
  • Redundant communications with zero downtime using optional PRP/HSR protocols
  • Wide range of supported protocols Courier/K-Bus, IEC 60870-5-103, DNP 3.0 (EAI-485 or Ethernet) and IEC 61850 Edition 2
  • Harsh environment coating as standard to all MiCOM relays to protect against corrosive gases such as H2S or SO2

Application:

Adapted to suit many different substation and protected feeder topologies:

  • Current differential protection for up to 6 line or cable ends, maximising connection of renewable generation, reducing greenhouse gas emissions
  • Highly selective and sensitive unit protection, with capacitive current compensation for long lines or cables
  • Ability to locally take any end off-line for maintenance
  • Transmission and subtransmission:  P54C and P54E use the same hardware as well-proven MiCOM Agile P543 and P545 models, offering scalability for large numbers of binary inputs/outputs
  • Distribution: P54A and P54B offer compact feeder differential in a 40TE half-rack case

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P54E Multi-ended Line Differential Protection Systems
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P54E Multi-ended Line Differential Protection Systems

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The MiCOM P54A/B/C/E range is designed for overhead line and cable applications up to 6 terminals, interfacing readily with the longitudinal (end-to-end) communications channel between line terminals. Previously, transmission and distribution circuits would have two or three ends only, whereas five or more ends are becoming common to connect renewable generation. All models are ready for protection topologies ranging from two to six terminals, whether those multi-terminals exist now, or are provisioned for connection in the future.

Multi-ended current differential protection uses a high-speed and innovative biased differential characteristic. Phase-segregated differential elements provide consistent detection of solid and resistive faults.

Key features:

  • Current differential protection for up to 6 line or cable ends, maximising connection of renewable generation, reducing greenhouse gas emissions
  • Subcycle tripping time up to 4-ended topology (<1.25 cycle for 5 or 6 ends)
  • Highly selective and sensitive unit protection, with capacitive current compensation for long lines or cables
  • Ability to locally take any end off-line for maintenance
  • Full support of SONET/SDH channel switching
  • Suitable for direct fibre and multiplexed (IEEE C37.94) networks, including MPLS systems
  • Full suite of monitoring, control and recording capabilities plus fault locator, autoreclose and check synchronism
  • 8 teleprotection logic bits from and to each end via MODEM, fibre, or MUX channel
  • Compatibility with modern Ethernet communications equipment
  • New CT saturation technique reduces CT dimensioning requirements and saves on scheme cost
  • Advanced IEC61850 Edition 2 implementation with complete settings via SCL files
  • Redundant communications with zero downtime using optional PRP/HSR protocols
  • Wide range of supported protocols Courier/K-Bus, IEC 60870-5-103, DNP 3.0 (EAI-485 or Ethernet) and IEC 61850 Edition 2
  • Harsh environment coating as standard to all MiCOM relays to protect against corrosive gases such as H2S or SO2

Application:

Adapted to suit many different substation and protected feeder topologies:

  • Current differential protection for up to 6 line or cable ends, maximising connection of renewable generation, reducing greenhouse gas emissions
  • Highly selective and sensitive unit protection, with capacitive current compensation for long lines or cables
  • Ability to locally take any end off-line for maintenance
  • Transmission and subtransmission:  P54C and P54E use the same hardware as well-proven MiCOM Agile P543 and P545 models, offering scalability for large numbers of binary inputs/outputs
  • Distribution: P54A and P54B offer compact feeder differential in a 40TE half-rack case

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P443 Fast Multifunctional Distance Protection Relay
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P443 Fast Multifunctional Distance Protection Relay

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Transmission and distribution systems are essential for the safe, sure routing of power from generation sources to consumers. However, exposed overhead lines transporting power are by nature sometimes vulnerable and prone to fault. In the case of a faulty circuit, the Agile range provides speedy protection to trip and isolate it, thereby preventing further damage.

Each relay model contains multiple main protection elements: distance, delta directional comparison protection and directional earth/ground fault unit protection (DEF). This permits simplified application and spares holdings, because the relay can be adopted as the standard protection platform. 

The MiCOMho Agile P443 and P445 are suitable for feeders controlled by a single circuit breaker. The MiCOMho Agile P446 is suitable for complex installations where feeders are controlled by two circuit breakers such as ring bus/mesh corner formations and the breaker-and-a-half configurations. 

Key benefits:

  • P443 and P446: Sub-cycle fault clearance from 0.7 to 1 cycle
  • Simple set mode: The relay determines its own settings from protected line data
  • Power swing blocking without the need for setting
  • Integral teleprotection via a MODEM, fiber or MUX channel
  • Fast CB failure resetting (<3/4 cycle)
  • Phase-preference tripping for cross-country earth faults in Petersen/isolated systems (P443 version 78)

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P441 Numerical Distance Protection Relays
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P441 Numerical Distance Protection Relays

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Distance Protection Systems

The MiCOM Agile P441, P442 and P444 numerical full scheme distance relays provide flexible, fast and reliable protection of transmission and sub-transmission lines. They include full scheme 5-zone distance, plus aided directional earth fault (DEF) and comprehensive backup protection for utility lines and cables at all voltage levels, particularly oriented towards transmission grids.

These distance protection systems are ideal for single circuit breaker application, single and/or 3-pole tripping, and includes a full suite of monitoring, control and recording capabilities plus fault locator, autoreclose and check synchronism.

Key features:

  • Dual algorithm distance operation for maximum fault detection dependability
  • Deploy in digital substation architectures with merging units and non-conventional instrument transformers using IEC 61850-9-2 process bus
  • Distance to fault location assists dispatching of maintenance crews 
  • Full-scheme relay offers fast, discriminative response to double-circuit, cross-country and evolving faults

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P442 Numerical Distance Protection Relays
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P442 Numerical Distance Protection Relays

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Distance Protection Systems

The MiCOM Agile P441, P442 and P444 numerical full scheme distance relays provide flexible, fast and reliable protection of transmission and sub-transmission lines. They include full scheme 5-zone distance, plus aided directional earth fault (DEF) and comprehensive backup protection for utility lines and cables at all voltage levels, particularly oriented towards transmission grids.

These distance protection systems are ideal for single circuit breaker application, single and/or 3-pole tripping, and includes a full suite of monitoring, control and recording capabilities plus fault locator, autoreclose and check synchronism.

Key features:

  • Dual algorithm distance operation for maximum fault detection dependability
  • Deploy in digital substation architectures with merging units and non-conventional instrument transformers using IEC 61850-9-2 process bus
  • Distance to fault location assists dispatching of maintenance crews 
  • Full-scheme relay offers fast, discriminative response to double-circuit, cross-country and evolving faults

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P444 Numerical Distance Protection Relays
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P444 Numerical Distance Protection Relays

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Distance Protection Systems

The MiCOM Agile P441, P442 and P444 numerical full scheme distance relays provide flexible, fast and reliable protection of transmission and sub-transmission lines. They include full scheme 5-zone distance, plus aided directional earth fault (DEF) and comprehensive backup protection for utility lines and cables at all voltage levels, particularly oriented towards transmission grids.

These distance protection systems are ideal for single circuit breaker application, single and/or 3-pole tripping, and includes a full suite of monitoring, control and recording capabilities plus fault locator, autoreclose and check synchronism.

Key features:

  • Dual algorithm distance operation for maximum fault detection dependability
  • Deploy in digital substation architectures with merging units and non-conventional instrument transformers using IEC 61850-9-2 process bus
  • Distance to fault location assists dispatching of maintenance crews 
  • Full-scheme relay offers fast, discriminative response to double-circuit, cross-country and evolving faults

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P841 Multifunction Line Terminal Protection Relay
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P841 Multifunction Line Terminal Protection Relay

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The MiCOM Agile P841 is a multifunctional line terminal IED for control and back-up protection in transmission and sub-transmission feeder bays. The P841 provides management of single or dual breaker autoreclose logic schemes with synchrocheck.

Key features:

  • Extremely versatile, e.g. managing leader-follower reclosing schemes in the event of dual breaker application
  • Transmission-class circuit breaker failure protection
  • Operator control and plant status indication facilities - 10 fully programmable function keys and tri-color LEDs

Models:

  • P841A Line Terminal Management IED
  • P841B Used for line terminals supplied by two circuit breakers, such as mesh/ring bus, double-bus, and breaker and a half feeding

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P842 Mesh Corner Auto-Reclose Relay
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P842 Mesh Corner Auto-Reclose Relay

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Its flexibility means it can be used with different bus-bar arrangements.The MiCOM Agile P842 Mesh Corner Reclose unit (MCU) provides a flexible, distributed scheme for delayed auto-reclose (DAR) and auto-isolation of a mesh bus station. 

High-speed peer-peer communications

The MiCOM Agile P842 uses high-speed peer-peer communication facilities over ethernet, and provides for the automatic reclosure of circuit breakers. It also ensures automatic isolation of a persistently faulted plant and suppresses ferro-resonance following a system fault.

The equipment is provided on the basis of one MCU per mesh corner. Although each MCU is an autonomous unit, inter-unit communications guarantees co-ordinated control of a complete mesh system.

Flexibility for easy commissioning and fault-finding

The MiCOM Agile P842 ensures that only the faulted electrical plant is isolated for permanent faults. It provides flexibility for different busbar arrangements, carries out system checks, and suppresses ferro-resonance. MiCOM Agile P842 is equipped with real time peer-peer communications and allows easy commissioning and 'fault-finding'.

About MiCOM P40 Agile

Agile’s philosophy is one of continuous improvement in our products and solutions. Our emphasis on communication in MiCOM has become a focus which secures leadership in the digital substation. To mark this phase of evolution, the brand “P40 Agile” is applied to the range. P40 Agile is a mark of performance and quality, proudly available from Agile, and only from Agile.


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P445 Fast Multifunctional Distance Protection Relay
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P445 Fast Multifunctional Distance Protection Relay

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Distance Protection Systems

The MiCOMho Agile P443, P445 and P446 relays operate with advanced load blinding and disturbance detection techniques, such as power swing blocking, to ensure stability when no tripping is required. Whether protection is required for lines, cables or hybrids of grounded transmission and distribution circuits, the MiCOMho Agile P443, P445 and P446 relay characteristics allow for versatile deployment.

Key features:

  • Extremely versatile logic capabilities, managing leader-follower auto-reclosing and check synch schemes in dual breaker applications
  • Transmission-class circuit breaker failure protection for one or two breakers. The breaker failure protection may be initiated from internal protection within the relay or from external devices
  • Single-pole and 3-pole breaker operation is supported, with independent supervision and condition monitoring statistics for each pole
  • Trip circuit supervision, control and interlocking schemes can be designed via graphical support software

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P446 Fast Multifunctional Distance Protection Relay
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P446 Fast Multifunctional Distance Protection Relay

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Distance Protection Systems

The MiCOMho Agile P443, P445 and P446 relays operate with advanced load blinding and disturbance detection techniques, such as power swing blocking, to ensure stability when no tripping is required. Whether protection is required for lines, cables or hybrids of grounded transmission and distribution circuits, the MiCOMho Agile P443, P445 and P446 relay characteristics allow for versatile deployment.

Key features:

  • Extremely versatile logic capabilities, managing leader-follower auto-reclosing and check synch schemes in dual breaker applications
  • Transmission-class circuit breaker failure protection for one or two breakers. The breaker failure protection may be initiated from internal protection within the relay or from external devices
  • Single-pole and 3-pole breaker operation is supported, with independent supervision and condition monitoring statistics for each pole
  • Trip circuit supervision, control and interlocking schemes can be designed via graphical support software

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P442 Numerical Distance Protection Relays
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P442 Numerical Distance Protection Relays

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Distance Protection Systems

The MiCOM Agile P441, P442 and P444 numerical full scheme distance relays provide flexible, fast and reliable protection of transmission and sub-transmission lines. They include full scheme 5-zone distance, plus aided directional earth fault (DEF) and comprehensive backup protection for utility lines and cables at all voltage levels, particularly oriented towards transmission grids.

These distance protection systems are ideal for single circuit breaker application, single and/or 3-pole tripping, and includes a full suite of monitoring, control and recording capabilities plus fault locator, autoreclose and check synchronism.

Key features:

  • Dual algorithm distance operation for maximum fault detection dependability
  • Deploy in digital substation architectures with merging units and non-conventional instrument transformers using IEC 61850-9-2 process bus
  • Distance to fault location assists dispatching of maintenance crews 
  • Full-scheme relay offers fast, discriminative response to double-circuit, cross-country and evolving faults

Yes! I am Interested
Request CallBack
P54A Multi-ended Line Differential Protection Systems
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P54A Multi-ended Line Differential Protection Systems

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Key features:

  • Current differential protection for up to 6 line or cable ends, maximising connection of renewable generation, reducing greenhouse gas emissions
  • Subcycle tripping time up to 4-ended topology (<1.25 cycle for 5 or 6 ends)
  • Highly selective and sensitive unit protection, with capacitive current compensation for long lines or cables
  • Ability to locally take any end off-line for maintenance
  • Full support of SONET/SDH channel switching
  • Suitable for direct fibre and multiplexed (IEEE C37.94) networks, including MPLS systems
  • Full suite of monitoring, control and recording capabilities plus fault locator, autoreclose and check synchronism
  • 8 teleprotection logic bits from and to each end via MODEM, fibre, or MUX channel
  • Compatibility with modern Ethernet communications equipment
  • New CT saturation technique reduces CT dimensioning requirements and saves on scheme cost
  • Advanced IEC61850 Edition 2 implementation with complete settings via SCL files
  • Redundant communications with zero downtime using optional PRP/HSR protocols
  • Wide range of supported protocols Courier/K-Bus, IEC 60870-5-103, DNP 3.0 (EAI-485 or Ethernet) and IEC 61850 Edition 2
  • Harsh environment coating as standard to all MiCOM relays to protect against corrosive gases such as H2S or SO2

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P54C Multi-ended Line Differential Protection Systems
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P54C Multi-ended Line Differential Protection Systems

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Key features:

  • Current differential protection for up to 6 line or cable ends, maximising connection of renewable generation, reducing greenhouse gas emissions
  • Subcycle tripping time up to 4-ended topology (<1.25 cycle for 5 or 6 ends)
  • Highly selective and sensitive unit protection, with capacitive current compensation for long lines or cables
  • Ability to locally take any end off-line for maintenance
  • Full support of SONET/SDH channel switching
  • Suitable for direct fibre and multiplexed (IEEE C37.94) networks, including MPLS systems
  • Full suite of monitoring, control and recording capabilities plus fault locator, autoreclose and check synchronism
  • 8 teleprotection logic bits from and to each end via MODEM, fibre, or MUX channel
  • Compatibility with modern Ethernet communications equipment
  • New CT saturation technique reduces CT dimensioning requirements and saves on scheme cost
  • Advanced IEC61850 Edition 2 implementation with complete settings via SCL files
  • Redundant communications with zero downtime using optional PRP/HSR protocols
  • Wide range of supported protocols Courier/K-Bus, IEC 60870-5-103, DNP 3.0 (EAI-485 or Ethernet) and IEC 61850 Edition 2
  • Harsh environment coating as standard to all MiCOM relays to protect against corrosive gases such as H2S or SO2

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P547 Phase Comparison Line Protection Relay
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P547 Phase Comparison Line Protection Relay

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MiCOM Agile P547 phase comparison relay provides comprehensive phase comparison line protection including unit protection, subcycle distance and directional earth fault (DEF) for single and three pole tripping applications. It is adapted to two and three-terminal lines, and lines with transformer tee-off feeds.

Interfacing with the Power Line Carrier equipment, which operates via the power line, means that the end-to-end scheme communication requires no external signaling channel. VT inputs may be added to enhance protection stability and sensitivity in long line applications, and where single pole tripping is required. Adding voltage inputs supports distance protection and fault location and enhances other MiCOM Agile P547 functions.

Key features:

  • Distance to fault location assists dispatching of maintenance crews
  • Graphical programmable scheme logic eases protection scheme creation, and avoids the need for external logic controllers
  • IEC 61850 redundant Ethernet, supporting self healing ring, RSTP, dual homing, PRP or HSR
  • Optional mho and quadrilaterial subcycle distance protection
  • Full suite of monitoring, control and recording capabilities plus fault locator, autoreclose and check synchronism
  • Harsh environment coating as standard to all MiCOM relay to protect against corrosive gases such as H2S or SO2

Main characteristics:

  • Highly selective unit protection
  • Cost effective alternative to current differential
  • The signaling medium is the power line itself - fully within the maintenance and operational control of the utility, no external communications dependence
  • Advanced charging current compensation and angle-shifting to avoid corona issues - design features to target long-line transmission applications
  • Adaptive mixing of sequence components boosts earth fault sensitivity without compromising detection of phase-phase and three-phase faults
 

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MiCOM Agile P543, P544, P545 & P546 Line Differential Protection Systems
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MiCOM Agile P543, P544, P545 & P546 Line Differential Protection Systems

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Product Details:
Minimum Order Quantity1 Piece
Voltage220-240V
Number Of Poles3 Pole

 

The MiCOM Agile P543, P544, P545 & P546 range of transmission-class protection relays provide comprehensive line protection for differential, subcycle distance and directional earth fault applications, 1/3 pole tripping. This range of products is ideal for HV, EHV and UHV applications on lines and cables of any length.

 


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L90 Line Differential Protection System
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L90 Line Differential Protection System

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The L90 provides high-speed current differential protection suitable for transmission lines and cables of various voltage levels, while supporting complete distance protection and dual-breaker applications suitable for single and three-pole tripping applications. The L90 uses synchronized sampling at each relay to limit the impact of communications channel issues. The differential element's adaptive restraint balances sensitivity for internal faults and security during external faults. The L90 supports inter-relay protection communications via direct fiber as well as different interfaces.


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MiCOM Agile P54A, P54B, P54C & P54E Multi-ended Line Differential Protection Systems
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MiCOM Agile P54A, P54B, P54C & P54E Multi-ended Line Differential Protection Systems

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Minimum Order Quantity1 Piece
Voltage220-240v
Number Of Poles3 Pole

The MiCOM P54A/B/C/E range is designed for overhead line and cable applications up to 6 terminals, interfacing readily with the longitudinal (end-to-end) communications channel between line terminals. Previously, transmission and distribution circuits would have two or three ends only, whereas five or more ends are becoming common to connect renewable generation. All models are ready for protection topologies ranging from two to six terminals, whether those multi-terminals exist now, or are provisioned for connection in the future.

 

Multi-ended current differential protection uses a high-speed and innovative biased differential characteristic. Phase-segregated differential elements provide consistent detection of solid and resistive faults.


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L30 Line Differential System
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L30 Line Differential System

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Product Details:
Minimum Order Quantity1 Piece
Relay TypeFrequency Relay
Voltage220/240V
Frequency50-60 Hz

The L30 is a cost-effective line current differential protection relay intended for sub-transmission and medium voltage lines and cables providing reliable and secure operation even under the worst case power system conditions. The L30 provides secure high-speed fault detection and clearance suitable for three-pole tripping applications. The L30 supports inter-relay communications via direct fiber as well as standard RS422, G.703 and C37.94 telecommunication interfaces. The L30 also provides synchrophasor measurements over Ethernet per IEEE C37.118.


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D60 Line Distance Protection System
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D60 Line Distance Protection System

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High-speed transmission line protection with flexibility for three or single pole tripping. The D60, a member of the UR Family of protection relays, is a numerical line distance protection system, which provides protection for medium to extra high voltage transmission lines and an integrated system providing control, automation, metering, synchrophasors, monitoring and communications in one easy to use package. Use the D60 on applications requiring fast single or three phase tripping, single or three pole re-closing, series compensated lines, with multiple breakers per terminal. Distance protection has been tuned to meet the rigorous application requirements of IEC-driven end-users. Distance protection has been tuned to meet the rigorous application requirements of IEC-driven end-users. Distance protection has been tuned to meet the rigorous application requirements of IEC-driven end-users.


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