ABB REG615 Generator and Interconnection Protection Relay

ABB REG615 Generator and Interconnection Protection Relay Supplier and Exporter in India

ARP IMPEX supplies and exports ABB REG615 generator and interconnection protection relays from India for power plants, captive generation systems, industrial substations, distributed generation projects and generator control panels.

We handle requirements for new projects, plant maintenance, shutdown spares and replacement of existing REG615 relays. Buyers can send the complete ABB part code, required quantity and destination country for pricing and availability.

ABB REG615 is part of the Relion 615 Series and is used for the protection, control, measurement and supervision of synchronous generators and distributed generation interconnection points. ABB provides REG615 in different standard configurations so the same relay platform can cover grid interconnection protection as well as generator protection.

The relay is commonly used with small and medium generators in diesel, gas, hydro, steam and combined heat and power plants. For small generators, REG615 can provide the main protection. It can also be used as backup protection for medium-sized generating units where independent protection is required.

Buyers looking for an ABB REG615 generator protection relay supplier in India should share the full order code whenever possible. The configuration, current and voltage inputs, auxiliary supply, communication hardware and optional I/O can vary between REG615 units.

Request a Quote for ABB REG615

For ABB REG615 price and availability, please share:

• Complete ABB REG615 part code or order code
• Required quantity
• Destination country
• Required delivery schedule

For replacement requirements, send a clear photograph of the existing REG615 nameplate.

Why Buy ABB REG615 from ARP IMPEX?

• Supply against complete ABB part code
• Support for matching spare and replacement requirements
• Quotations for single units and project quantities
• Part-code and nameplate checking before quotation
• Technical datasheets with the offer
• Export packing and shipping assistance
• Supply for plant shutdown and maintenance requirements
• Support for EPC contractors, panel builders and industrial buyers
• International supply from India

ARP IMPEX handles enquiries for buyers searching for an ABB REG615 supplier and exporter in India, ABB generator protection relay price, ABB REG615 replacement relay and REG615 protection relay for power plant applications.

ABB REG615 Models and Standard Configurations

ABB REG615 is one relay family with three IEC standard configurations: A, C and D. These are different application configurations of REG615 rather than separate relay model numbers.

ABB REG615 Configuration A – Interconnection Protection

Configuration A is intended mainly for the protection and supervision of the point where distributed generation connects to the utility network.

Main functions include:

• Directional overcurrent protection
• Earth-fault protection
• Negative-sequence overcurrent protection
• Undervoltage protection
• Overvoltage protection
• Positive-sequence undervoltage protection
• Negative-sequence overvoltage protection
• Multi-stage frequency protection
• Reverse power / directional overpower protection
• Low-voltage ride-through protection
• Voltage vector shift protection
• Directional reactive power undervoltage protection
• Synchronism and energising check
• Circuit-breaker failure protection
• Circuit-breaker control
• Optional arc protection
• Power, current, voltage and frequency measurement

ABB identifies Configuration A specifically for distributed power generation interconnection protection.

Typical requirements include:

• Solar power interconnection
• Wind power interconnection
• Captive generator grid connection
• Distributed generation connection
• Utility parallel operation
• Generator incomer panels
• Grid-code protection

ABB REG615 Configuration C – Generator Protection with 100% Stator Earth-Fault Protection

Configuration C is intended for small and medium synchronous generator protection and includes third-harmonic-based stator earth-fault protection.

Main functions include:

• Generator overcurrent protection
• Voltage-dependent overcurrent protection
• Earth-fault protection
• Negative-sequence protection for generators
• Thermal overload protection
• Undervoltage and overvoltage protection
• Frequency protection
• Overexcitation protection
• Reverse power protection
• Underpower protection
• Underexcitation protection
• Underimpedance protection
• Out-of-step protection
• 100% stator earth-fault protection
• Circuit-breaker failure protection
• Generator monitoring and measurement

The third-harmonic-based stator earth-fault function helps extend earth-fault protection towards the generator neutral end, where conventional fundamental-frequency protection alone may not provide complete winding coverage. ABB lists this function specifically in Configuration C.

Configuration C is commonly considered for:

• Diesel generators
• Gas engine generators
• Hydro generators
• Steam turbine generators
• Captive power generators
• CHP generating units
• Industrial generating stations

ABB REG615 Configuration D – Generator Differential Protection

Configuration D is intended for generator protection where machine differential protection is required. It also includes directional overcurrent protection and synchronism checking.

Main functions include:

• Generator differential protection
• Instantaneous differential protection
• Directional overcurrent protection
• Voltage-dependent overcurrent protection
• Earth-fault protection
• Negative-sequence protection
• Thermal overload protection
• Undervoltage and overvoltage protection
• Frequency protection
• Overexcitation protection
• Reverse power protection
• Underpower protection
• Underexcitation protection
• Out-of-step protection
• Circuit-breaker failure protection
• Synchronism and energising check
• Circuit-breaker control

Configuration D has six phase-current inputs for the generator differential scheme, whereas Configurations A and C use three phase-current inputs.

It is commonly selected where the project requires an ABB REG615 generator differential protection relay for small or medium generating units.

Technical Specifications

• Brand: ABB
• Product family: Relion 615 Series
• Model: REG615
• Product type: Generator and interconnection protection relay
• IEC product version: 5.0 FP1
• Standard configurations: A, C and D
• Configuration A: Distributed generation interconnection protection
• Configuration C: Generator protection with 100% stator earth-fault protection
• Configuration D: Generator protection with differential protection, directional overcurrent and synchronism check
• Phase-current inputs: Three or six depending on configuration
• Residual-current input: One
• Phase-current rating: 1 A or 5 A
• Residual-current rating: 1/5 A or sensitive 0.2/1 A option
• Phase-voltage inputs: Three
• Residual-voltage input: One
• Additional voltage input: Used for synchronism check or third-harmonic stator earth-fault protection depending on configuration
• Voltage input range: 60–210 V AC
• Optional RTD inputs: Two
• Optional mA input: One
• Optional high-speed outputs: Three
• Wide-range auxiliary supply: 100–240 V AC or 48–250 V DC
• Low-range auxiliary supply: 24–60 V DC
• Communication protocols: IEC 61850, IEC 60870-5-103, Modbus and DNP3
• Process bus: IEC 61850-9-2 LE supported
• GOOSE messaging: Supported
• Ethernet redundancy: HSR and PRP supported
• Time synchronisation: IEEE 1588 supported
• Configuration software: ABB PCM600
• Local interface: Graphical HMI
• Construction: Withdrawable plug-in relay
• Operating temperature: –25°C to +55°C continuous
• Installation altitude: Up to 2,000 metres
• Approximate dimensions: 177 × 177 × 201 mm
• Approximate complete relay weight: 4.1 kg

The exact analogue inputs, binary I/O, communication interface, auxiliary supply and optional hardware depend on the ABB REG615 order code.

Features

• Protection for synchronous generators
• Distributed generation interconnection protection
• Generator differential protection in Configuration D
• 100% stator earth-fault protection in Configuration C
• Phase overcurrent protection
• Directional overcurrent protection
• Voltage-dependent overcurrent protection
• Earth-fault protection
• Directional earth-fault protection
• Negative-sequence protection
• Generator thermal overload protection
• Undervoltage protection
• Overvoltage protection
• Positive- and negative-sequence voltage protection
• Underfrequency protection
• Overfrequency protection
• Overexcitation protection
• Underexcitation protection
• Reverse power protection
• Underpower protection
• Underimpedance protection
• Out-of-step protection
• Low-voltage ride-through protection for interconnection applications
• Voltage vector shift protection
• Reactive power undervoltage protection
• Synchronism check in applicable configurations
• Circuit-breaker failure protection
• Circuit-breaker control
• Optional arc-flash protection
• Optional high-speed outputs
• Generator current and voltage measurement
• Power and energy measurement
• Frequency measurement
• Fault recording
• Disturbance recording
• Event recording
• Circuit-breaker condition monitoring
• Trip-circuit supervision
• Fuse-failure supervision
• IEC 61850 communication
• GOOSE messaging
• IEC 61850-9-2 LE process-bus support
• Configuration through ABB PCM600

The exact protection package depends on Configuration A, C or D. Not every function is available in every REG615 configuration.

Generator Differential Protection

ABB REG615 Configuration D provides stabilised and instantaneous differential protection for generators.

The relay compares current measurements from both sides of the protected generator winding. A difference above the set operating limit can indicate an internal generator fault.

Generator differential protection is commonly used for:

• Generator winding phase faults
• Internal short circuits
• High-value generating equipment
• Generators where fast selective protection is required

For an ABB REG615 generator differential relay quotation, Configuration D and the complete part code should be confirmed.

100% Stator Earth-Fault Protection

Configuration C includes third-harmonic-based stator earth-fault protection.

This function is used with other stator earth-fault protection elements to improve protection coverage across the generator stator winding.

It is particularly relevant where buyers are searching for:

• ABB generator stator earth-fault relay
• ABB REG615 100% stator earth-fault protection
• Generator neutral earth-fault protection
• Generator winding protection relay

The generator earthing arrangement, neutral equipment and voltage transformer connections should be reviewed when configuring this protection.

Reverse Power and Underpower Protection

Reverse power protection is important for generating units operating in parallel with an electrical network.

If prime-mover input is lost, the generator may begin drawing active power from the network and operate as a motor. REG615 includes reverse power / directional overpower protection, with the exact available stages depending on the selected configuration.

Typical applications include:

• Diesel generator protection
• Gas generator protection
• Steam turbine generator protection
• Hydro generator protection
• Captive power generation

Underexcitation and Overexcitation Protection

REG615 generator configurations protect against abnormal excitation conditions.

Underexcitation protection is used to detect generator operation with insufficient excitation, while overexcitation protection monitors excessive voltage-to-frequency conditions that may cause overheating or magnetic stress.

These functions are particularly useful in generator protection schemes where excitation system problems need to be detected before they cause equipment damage.

Out-of-Step Protection

Configurations C and D include out-of-step protection.

This function detects loss of synchronism between the generator and the power system. It may be required after major disturbances, severe system faults or unstable operating conditions.

Out-of-step protection is normally coordinated with the generator, excitation system and overall power-system protection philosophy.

Distributed Generation Interconnection Protection

REG615 Configuration A is specifically prepared for distributed generation interconnection points.

Protection functions include:

• Directional overcurrent
• Earth fault
• Voltage protection
• Frequency protection
• Low-voltage ride-through
• Voltage vector shift
• Directional reactive power undervoltage
• Reverse power
• Synchronism check

ABB states that REG615 provides interconnection protection intended to meet grid-code requirements for connecting distributed generation to the power grid.

Typical applications include:

• Solar generation plants
• Wind generation
• Biomass generation
• Captive generation
• CHP plants
• Industrial generators operating in parallel with the utility
• Distributed generation grid connections

Applications

ABB REG615 is commonly used for:

Synchronous generator protection
Small generator protection
Medium generator backup protection
Generator differential protection
Generator stator earth-fault protection
Generator reverse power protection
Generator underexcitation protection
Generator overexcitation protection
Generator out-of-step protection
Generator thermal protection
Generator voltage protection
Generator frequency protection
Captive power generator protection
Distributed generation interconnection protection
Utility parallel-operation protection
Solar power interconnection
Wind power interconnection
Biomass power plants
Diesel generator protection
Gas generator protection
Hydro generator protection
Steam turbine generator protection
Combined heat and power plants
Generator incomer panels
Generator circuit-breaker panels
Industrial substations
Existing ABB REG615 replacement requirements

ABB specifically lists synchronous generators, distributed generation interconnection points, diesel, gas, hydroelectric, CHP and steam power generation among REG615 applications.

Industries Using ABB REG615

ABB REG615 relays are commonly required in:

• Power plants
• Captive power plants
• Utility substations
• Renewable energy projects
• Solar power plants
• Wind power projects
• Biomass plants
• Steel plants
• Cement plants
• Mining facilities
• Oil and gas plants
• Refineries
• Petrochemical plants
• Chemical plants
• Paper mills
• Large manufacturing plants
• Water and wastewater facilities
• Independent power generation projects

ABB REG615 Replacement

For an existing ABB REG615 replacement, the complete part code should be checked before ordering.

REG615 units can differ in:

• Configuration A, C or D
• Product and firmware version
• Three-current or six-current input arrangement
• Residual-current input type
• Voltage inputs
• Auxiliary supply voltage
• Binary input and output modules
• RTD/mA options
• High-speed outputs
• Communication interface
• Existing PCM600 configuration

A clear nameplate photograph is normally enough to begin the replacement enquiry. An existing PCM600 configuration file is also useful when available.

ABB currently points REG615 users to REX615 as the next step for the 615 and 620 Series, but a REX615 should not be treated as a direct plug-and-play REG615 replacement without checking the existing protection scheme, I/O, wiring and communication requirements.

Contact us for ABB REG615 generator protection relay price, Configuration A, C or D availability, generator differential relay requirements, interconnection protection requirements or an export quotation from India.