Electromechanical Relays

Areva/Alstom/GE

The VAJ range comprises very reliable hinged armature relays designed to directly operate circuit breaker trip coils. Built to very high specifications, the VAJ range provides a highly flexible and reliable link between the protective relays and the circuit breakers.

1. Features:

• High speed operation
• High degree of mechanical stability
• Positive action without chatter
• Compact

2. Application:

High speed tripping duties where a number of simultaneous switching operations are required.

• Delivery Time: Ex Stock / 2-3 Weeks
• Packaging Details: Cartoon Box Packing

Features:

Flexible Current Relay.

Full set of measurement

Easy settings

Effortless installation

Two setting groups, selected from the relay menu, binary inputs or SCADA/DCS

Flush mounted case Fundamental phase current value measurement

9 button keypad to input settings, configure the relay close and trip command

Fault Record of most recent trip

Applications:

Typical applications are Utility and industrial substation fitted with cost-optimized MV switchboards.

Retrofit relays of old technology, particularly during the installation of DCS system.

Transformers, Incomers, Bus-couplers, Capacitor Banks, Overhead lines and underground cables on MV system.

Neutral system protection (insulated, solid and resistance earthed)

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

CAG14 relay is applied for high impedance restricted earth fault protection of generator, transformer, reactor and bus bars. It is also used with a follower timer for time-delayed earth fault protection. Other applications include capacitor bank unbalance protection, generator inter-turn fault protection etc.

Application:

• Restricted E/F
• Differential
• Bus-Zone Protection

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

The MiCOM P111E (Enhancement) relays are suitable for all the applications where the overcurrent and/or earth-fault protection is required. P111E can be applied to medium and low voltage electrical system as optimized and cost-efficient solutions. It can be fully configured manually, without using the setting software. 

Typical applications are Utility and industrial substation fitted with cost-optimized MV switchboards. Retrofit relays of old technology, particularly during the installation of DCS system. Transformers, Incomers, Bus-couplers, Capacitor Banks, Overhead lines and underground cables on MV system. Neutral system protection (insulated, solid and resistance earthed).

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

The MICOM P111E (Enhancement) relays are suitable for all the applications where the overcurrent and/or earth-fault protection is required. P111E can be applied to medium and low voltage electrical system as optimized and cost-efficient solutions. It can be fully configured manually, without using the setting software.
Typical applications are Utility and industrial substation fitted with cost-optimized MV switchboards. Retrofit relays of old technology, particularly during the installation of DCS system. Transformers, Incomers, Bus-couplers, Capacitor Banks, Overhead lines and underground cables on MV system. Neutral system protection (insulated, solid and resistance earthed).

 

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Application:

MiCOM P12x/y provides a wide range of protection functions allowing its use in several applications:
• Main or backup protection on MV&HV systems
• Overhead lines and underground cables as a backup on HV systems
• Neutral systems protection (Insolated, solid earthed, resistance earthed and Petersen coil earthed)
• MV subscribers, Industry, Transport
• Generator and transformer scheme
• High impedance scheme for busbar and machine protection

OVERVIEW:

The following functions are available in most of the devices:
• Measurement and metering
• Dynamic average values, max peak value and rolling demand for the current measurements
• Disturbance recording including all the CT/VT inputs and logic status
• Fault recording
• Event recording

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Application:

MiCOM P12x/y provides a wide range of protection functions allowing its use in several applications
Main or backup protection on MV&HV systems
Overhead lines and underground cables as a backup on HV systems
Neutral systems protection (Insolated, solid earthed, resistance earthed and Petersen coil earthed)
MV subscribers, Industry, Transport
Generator and transformer scheme
High impedance scheme for busbar and machine protection

OVERVIEW:

The following functions are available in most of the devices
Measurement and metering
Dynamic average values, max peak value and rolling demand for the current measurements• Disturbance recording including all the CT/VT inputs and logic status
Fault recording
Event recording

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Application:

MiCOM P12x/y provides a wide range of protection functions allowing its use in several applications:

• Main or backup protection on MV&HV systems

• Overhead lines and underground cables as a backup on HV systems

• Neutral systems protection (Insolated, solid earthed, resistance earthed and Petersen coil earthed)

• MV subscribers, Industry, Transport

• Generator and transformer scheme

• High impedance scheme for busbar and machine protection

OVERVIEW:

The following functions are available in most of the devices:

• Measurement and metering

• Dynamic average values, max peak value and rolling demand for the current measurements

• Disturbance recording including all the CT/VT inputs and logic status

• Fault recording

• Event recording

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Application:

MiCOM P12x/y provides a wide range of protection functions allowing its use in several applications:
• Main or backup protection on MV&HV systems
• Overhead lines and underground cables as a backup on HV systems
• Neutral systems protection (Insolated, solid earthed, resistance earthed and Petersen coil earthed)
• MV subscribers, Industry, Transport
• Generator and transformer scheme
• High impedance scheme for busbar and machine protection
OVERVIEW:The following functions are available in most of the devices (see Protection Function Overview tables)
• Measurement and metering
• Dynamic average values, max peak value and rolling demand for the current measurements
• Disturbance recording including all the CT/VT inputs and logic status
• Fault recording
• Event recording

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Application:

• Main or backup protection on MV/HV systems
• Overhead lines & underground cables, backup on HV systems.
• Insulated, solid earthed, resistance earthed, and Petersen coil earthed neutral systems
• MV subscribers, Industry, Transport
• Generator and Transformer schemes

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

MiCOM P921 series of voltage and frequency relays are capable of highly versatile applications and are easily integrated into both new and existing network control systems. They offer improved power quality and are an ideal cost-effective solution for maintaining system stability. By employing enhanced techniques, designed to operate under non-linear abnormalities and sub-oscillations, MiCOM P921 eliminates the risk of unwanted operations. With up to 30 output contacts, users can create simple or complex load and generation management schemes using the relay''s logic capabilities.

Features:

Frequency measurement accuracy better than 0.01Hz
Wide input voltage range
Option of multiple communication protocols
Configurable logic equations
Housed in a compact case

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

The MiCOM generator protection relays provide flexible and reliable integration of protection, control, monitoring and measurement functions. Extensive functionality is available to provide
complete protection and control with five models for a wide range of applications, covering most installations from small generators up to sophisticated systems including generator-transformer applications.The variable number of opto inputs and output contacts available allow complex protection schemes to be created using the relay’s powerful but easy to use “Programmable Scheme Logic” (PSL).

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Application:

The MiCOM P14x range is suitable for all applications where overcurrent protection is required. It is suitable for solidly earthed, impedance earthed, Petersen coil earthed and isolated systems.First application shows a parallel transformer protection where the P141replaces many of the discrete protection elements normally associatedwith the LV side of the transformer. The protection includes nondirectional and directional phase overcurrent and earth fault, restricted earth fault and circuit breaker failure protection. The second application shows a P143 protecting a plain feeder using phase overcurrent, sensitive earth fault, negative sequence overcurrent, thermal protection and breaker failure protection. The integral autorecloser with check synchronising can beconfi gured to grade with downstream reclosers.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

MiCOM P24x Relay: 

Rotating Machine Management Relay:
Improving competitiveness and performance while adapting to a rapidly changing business environment is key to any business.New solutions must be developed to optimize return on investment from assets and benefi t from the latest technologies.MiCOM P24x relays offer a comprehensive package of protection for bothsynchronous and induction machines.The advanced features of the MiCOM P24x provide complete protectionand peace of mind, with the added value of a comprehensive rangeof measurements, control and monitoring to enhance power system diagnostics and fault analysis.Thanks to this versatility, the MiCOM P24x represents the ideal choice for advanced protection and monitoring.APPlICATIONThe MiCOM P24x are more than a conventional protection relay. They offer numerous additional functions suitable and crucial for a wide range ofapplications,which involve:
• Protection
• Monitoring
• Diagnosis
• Fault analysis tools
• Aid to maintenance

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Application:

The MiCOM P342 is suitable for protection of generators which require cost effective high quality protection. Protection includes overcurrent, ground fault, neutral voltage displacement, sensitive or restricted ground fault, voltage dependent overcurrent or underimpedance, under and overvoltage, under and overfrequency, reverse, low forward or overpower, field failure, negative phase sequence thermal, negative phase sequence overcurrent and overvoltage, turbine abnormal frequency, generator thermal and overfluxing, rotor ground fault, rate of change of frequency, check synchronizing, transformer thermal and loss of life as well as VT and CT supervision.The MiCOM P343 is suitable for protection of larger or more important generators, providing 100% stator ground fault via a 3rd harmonic measuring technique, pole slipping and unintentional energisation at standstill protection.The P344 is similar to the P343 but includes a second neutral voltage input for ground fault / interturn protection.The P345 is similar to the P344 but includes 100% stator ground fault protection via a low frequency injection technique.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Application:

MiCOM P441, P442 and P444 Numerical Full Scheme Distance Relaysprovide comprehensive distance protection for different applications like: lines, cables, tapped lines, lines with multiple zero sequence sources, non-homogeneous lines, series compensated lines and parallel lines.The independently settable resistive reach for each zone allows easyapplication to short lines and cable protection. Using well-proven, patentedtechniques to directionalise, and making full use of digital memory, the relays can be applied in situations that can cause classic distanceimplementations to maloperate (cross-country faults, close-up faults, etc.).The MiCOM P441, P442 and P444 are in-built with a library of channel aided scheme logic, supplementary and back-up protection. It provides complete protection (4 alternative setting groups) to solidly earthed systems from distribution to transmission voltage levels.Three phase tripping with faulted phase indication is provided for allprotection functions. In addition models P442 and P444 allow single-phase tripping for the distance protection and the channel aided DEF protection (67N).The P441, P442 and P444 distance relays equipped with 150MHz CPU

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Vamp series are smart Feeder and Motor protection relays.
Vamp is an expert in communication with fast experience in interfacing different system integrators SCADA, RTUs, PLCs and gateways using large numbers of supported protocols.
The VAMP 57 offers a complete set of measurement functions to replace the conventional metering functions of switchgears and controlgear installations. The measurement functions cover phase, line and residual current imbalance, system frequency and harmonics from phase currents.
Conditional monitoring continuously monitors trip circuit breaker wear and current transformer.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

VAMP 50 Series offers a comprehensive selection of modular protection relays for overcurrent, earth fault, voltage, frequency and line differential protection.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Easergy P5 is our latest protection relay for demanding medium-voltage applications. It offers best-in-class safety, security, reliability, and connectivity. The Easergy P5 is part of the PowerLogic range of power monitoring and control solutions and has been built on more than 100 years of experience in protection relays.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Micom P922 provides:
Voltage and frequency protection, event and fault records, disturbance recorder, 5 logic inputs, and 8 output contacts.

APPLICATION:

The MiCOM P92x relays provide fast and accurate protection for use in numerous applications requiring voltage and frequency based protection elements. To suit different application needs and provide optimum solution,

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

P923:

Voltage and frequency protection (plus the rate of change of frequency element df/dt, and rate of change of voltage ΔU/ΔT), event and fault records, disturbance recorder, 5 logic inputs, 8 output contacts.

APPLICATION:

The MiCOM P92x relays provide fast and accurate protection for use in numerous applications requiring voltage and frequency based protection elements. To suit different application needs and provide optimum solution,

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Sepam Series 40 offers 13 types of digital current or voltage protection for demanding distribution systems, each one dedicated to a single application.

Characteristics:

• 3 types of User-Machine Interface
• 4 current inputs
• 3 voltage inputs
• 8 relay outputs logic equation editor
• 1 Modbus communication port
• 16 temperature sensor inputs

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

The MiCOM P211 relay is made for motor application. It is designed for a wide range of protection, supervision and control functions relating to motor applications.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Schneider Easergy P3U30 with 2xRJ45 IEC61850 Screw/Ring terminals Relays, used at various protection purpose

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

In addition to these basic functions, the relay carries out a large number of other functions that enable it to protect and run the motor more effectively.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

The Sepam series 60 includes 8 types of Sepam. One type of Sepam is dedicated to one application.

Characteristics:

• 3 types of User-Machine Interface
• 4 current inputs
• 3 voltage inputs
• 28 binary inputs
• 16 binary outputs logic equation editor
• IEC 61850 GOOSE
• 1 Modbus communication port
• 16 RTD inputs
• Removable memory cartridge with parameters and settings for quick commissioning Applications

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

VAMP 300 series offers a comprehensive family of protection and control devices with complex measurement functions for the management of feeders and motors.

Models available: VAMP300F, VAMP300M, VAMP300G, VAMP300T

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

VAMP 200 series offers a comprehensive family of protection and control devices with complex measurement functions for the management of feeders, motors, and capacitor banks.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Over current and earth fault relay for basic protection of feeders and distribution transformers The Sepam series 10 range includes 3 models: series 10 N provides protection against earth fault. series 10 B provides protection against overloads, phase-to-phase faults and earth fault. series 10 A performs the same functions as the Sepam series 10 B, with digital inputs and additional relay outputs, one communication port and additional protection and monitoring functions Sepam series 10 replaces RH110, VIP 50 and Sepam 100RT due to end of commercialization (November 2009 ) Applications Protection of secondary power distribution networks (MV/MV, MV/LV substations) Protection of buildings with MV power supply (office buildings, shopping centers, industry, warehouses)

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Sepam series 80 offers 16 types of digital current or voltage protection for any distribution system, each one dedicated to a single application.

Models available:
Sepam S80, S81, S82, S84, T81, T82, T87, M81, M87, M88, G82, G87, G88, B80, B83, C86 Sepam series 80 includes 16 types of Sepam. One type of Sepam is dedicated to one application.

Characteristics:

• 3 types of UMI
• 12 analogue input
• 8 current inputs
• 4 voltage inputs
• 4 current inputs
• 8 voltage inputs
• 42 logic inputs
• 23 relay outputs
• 2 Mod bus communication ports
• 16 temperature sensor inputs
• Removable memory cartridge with parameters and settings for quick commissioning after replacement Logipam programming software (optional), to programmer specific functions

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

The Micom P225 Schneider Electric Relay range is designed for motor protection applications. A complete set of protection functions is performed on the measurement of current, voltage and temperature.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

The MiCOM P12x/y relays provides features for easy adaptation and are suitable for all applications where overcurrent and earth-fault protection are required.

The MiCOM P12x non-directional relays ranges from the single phase/earth fault P120 up to the multifunction three phase and earth fault P123.

The MiCOM P12y directional relays ranges from the single phase/earth fault P125 up to the multifunction three phase and earth fault P127, complete of voltage and frequency protection functions.

Users particularly appreciate the friendliness of the Human Machine Interface and the easy setting of the relays (that can be fully set through the front HMI or using MiCOM S1 setting software).

In addition to its protection function, MiCOM P12x/y provides full measurement and monitoring information necessary for efficient maintenance and post-fault analysis.

Several communication protocols allow easy interfacing of the MiCOM P12x/y relays in most of substation control or SCADA systems.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Available Models: (MiCOM MiCOM P631, MiCOM P632, MiCOM P633, MiCOM P634)

The MiCOM P63x series differential protection devices are intended for the fast and selective short circuit protection of transformers, motors, generators and other installations with two, three or four windings, respectively. The MiCOM P63x series provides high-speed three system differential protection using a triple-slope characteristic and two high-set differential elements in combination with transformer inrush restraint, overfluxing restraint and through-stabilization. Amplitude and vector group matching is done just by entering the nominal values of transformer windings and associated CTs.

Customer Benefits:

Multiple communication protocols and interfaces, including IEC 61850

CB Failure protection

Detachable HMI option

Application:
MiCOM P63x series differential protection devices provide a wide range of protection functions. The device selection depends on the protected object and the required protection scheme:

P630C: Two-end/winding schemes (two 3 pole CT inputs)

P631: Two-end/winding schemes (two 3 pole CT inputs)

P632: Two-end/winding schemes (two 4 pole CT inputs, one VT input)

P633: Three-end/winding schemes (three 4 pole CT inputs, one VT input)

P634: Four-end/winding schemes (three 4 pole CT inputs, one 3 pole CT input, one VT input)

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

The MiCOM range of relays offers scalable levels of functionality and hardware options to best suit your protection requirements, and allows you to choose the most cost effective solution for your application.The MiCOM protection relay range provides the capability for a wide variety of protection, control, measurement, monitoring and communication.The versatile hardware and common relay management software (MiCOM S1 studio) allows a simple configuration and installation in different applications.A standard and simple user interface across the entire range makes MiCOM ideal in any environment, from the more complex bay level control with mimic, to the most simple LCD display with menu interrogation. Keep informed to manage betterEvery MiCOM relay provides you with intuitive access to all system information in your own language so that so that you can manage your electrical installation effectively.If a problem occurs, clear and complete information puts you in a position to make the right decisions immediately. The electrical supply is restored without delay. Maintain installation availabilityMiCOM relays maintain high energy availability thanks to their diagnostics function that continuously monitors the network status.In-depth analysis capabilities and high reliability ensure that the equipment is de-energised only when absolutely necessary. Risks are minimised and servicing time reduced by programming maintenance operations. MiCOM series allows complete optimisation of your solution.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

3 Ph Over Current & Earth Fault Relay with RS485 port have Autoreclosure feature inbuilt. Best for LT & HT Switchgear use.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

MiCOM series 10 Relays fulfils the basic requirements of Buildings and small Industries applications with particular focus on overcurrent and motor protection.

Available Type:

Auxiliary powered

Self powered/dual powered

Technical Data Description:

Nominal Voltage (Vnom): 60-250 V(DC)

Nominal Voltage (Vnom): 90-240 V(AC)

Auxiliary Voltage: >90 V(AC), >90 V(DC)

Application:

Overcurrent & Earth Fault Protection.

Motor Protection

Protection Functions Available:

Thermal overload (49)

Ground fault (50/51N)

3 Phase overcurrent (50/51P)

Circuit breaker failure (50BF)

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

MiCOM P341 best for use in Grid Islanding Scheme.Loss of Mains With embedded generators running in parallel with the normal public supply there is a risk that, due to fault clearances on the external system, the embedded generator may become disconnected (islanded) from the main supply network. The machines may continue to supply external load and there is a significant risk the islanding may cause loss of system earth where the system earth is on the star winding of a network transformer, poor quality of supply to local loads and unsynchronised reconnection due to auto-reclosure of the remote circuit breaker. A loss of the mains/grid (or islanded) condition can be detected using voltage, frequency and power protection, but, when the machine rating closely matches the connected load this condition may be difficult to detect. Two methods of detection are therefore offered, rate of change of frequency and voltage vector shift.Rate of Change of Frequency The four df/dt stages can be used to detect the fluctuation in frequency that will occur as the machine adjusts to the new load conditions following loss of the grid or can be used for load shedding applications. The number of frequency averaging cycles, number of protection iterations, operating mode – fixed or rolling window and direction of operation can be set to suit the application. To improve stability for external system events an adjustable definite time delay can be used.Voltage Vector Shift This protection measures the instantaneous change in the three phase voltage angle that occurs when the connection to the main supply network is lost. To provide stability this element must be less sensitive than the rate of change of frequency element. However, it operates without any intentional time delay, providing fast tripping.Phase Overcurrent Four independent overcurrent stages are available. Each stage may be selected as non-directional or directional (forward/reverse). All stages have definite time (DT) delayed characteristics, two of the stages may also be independently set to one of nine inverse definite minimum time (IDMT) curves (IEC and IEEE). The IDMT stages have a programmable reset timer for grading with electromechanical relays, to reduce autoreclose dead times and to reduce clearance times where intermittent faults occur. The phase fault directional elements are internally polarised by quadrature phase-phase voltages, and will make a correct directional decision down to 0.5V (Vn = 110/120V) or 2.0V (Vn = 380/440V). A synchronous polarising signal is maintained for 3.2s after voltage collapse to ensure that the instantaneous and time delayed overcurrent elements operate correctly for close-up three phase faults.Standard Ground Fault The standard ground fault element operates from a residual current that is derived internally from the summation of the three phase currents. The directionality of the ground fault elements is provided by either residual voltage or negative sequence voltage. Voltage transformer supervision (VTS) can be used to block the directional element or to revert it to nondirectional.Sensitive Ground Fault A core balance CT should be used to drive the sensitive ground fault function. The directionality of the sensitive ground fault elements is provided by the residual voltage.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

The MiCOM generator protection relays provide flexible and reliable integration of protection, control, monitoring and measurement functions. Extensive functionality is available to provide complete protection and control with five models for a wide range of applications, covering most installations from small generators up to sophisticated systems including generator-transformer applications. The variable number of opto inputs and output contacts available allow complex protection schemes to be created using the relay’s powerful but easy to use “Programmable Scheme Logic” (PSL).

Features:

• Extensive functionality to meet all generator and transformer protection applications
• Programmable Scheme Logic to allow easy customization
• Flexible communications options including IEC 61850
• High break output contacts - no reliance on auxiliary devices
• Reduced cost of ownership via redundant ethernet ports

 

Specification:

• Auxiliary Voltage (DC): 48-110 V/110-250V
• Auxiliary Voltage (AC): 100-240 V

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

Features:

Flexible Current Relay

Full set of measurement

Easy settings

Effortless installation  

NORTH SIKKIM

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )

The unit's protection functions provide selectiveshort-circuit protection, ground fault protectionand overload protection in medium- andhighvoltage systems. The systems can beoperated as solidly-grounded, low-impedancegrounded,resonant-grounded or isolated-neutralsystems. The multitude of protection functionsincorporated into the unit enable the user to covera wide range of applications in the protection ofcable and line sections, transformers and motors.For easy adaptation to varying system operationconditions four independent parameter subsetsare provided.

• Delivery Time: Ex Stock / 2 - 3 weeks
• Packaging Details: As per Customer required ( Cartoon Packing / Wooden Packing/ Export Packing )