Numerical Relays SIEMENS

Product Details:

• Differential protection for 2- up to 3-winding transformers up to 5 ends (3-/1-phase)

• Differential protection for motors and generators

• Differential protection for short 2 up to 5 terminal lines

• Differential protection for busbars up to 12 feeders (phase-segregated or with summation CT)

Protection functions

• Differential protection with phase-segregated measurement

• Sensitive measuring for low-fault currents

• Fast tripping for high-fault currents

• Restraint against inrush of transformer

• Phase /ground overcurrent protection

• Overload protection with or without temperature measurement

• Negative-sequence protection

• Breaker failure protection

• Low/high-impedance restricted ground fault (REF)

• Voltage protection functions

Control functions

• Commands for control of circuit-breakers and isolators

• 7UT63x: Graphic display shows position of switching elements, local/remote switching by key-operated switch

• Control via keyboard, binary inputs, DIGSI 4 or SCADA system

• User-defined logic with CFC

Monitoring functions

• Self-supervision of the relay

• Trip circuit supervision

• Oscillographic fault recording

• Permanent differential and restraint current measurement, extensive scope of operational values

Communication interfaces

• PC front port for setting with DIGSI 4

• System interface IEC 61850 Ethernet - IEC 60870-5-103 protocol, - PROFIBUS-FMS/-DP, MODBUS or DNP 3.0

• Service interface for DIGSI 4 (modem)/ temperature monitoring (thermo-box)

• Time synchronization via IRIG-B/DCF 77

Additional Information:

• Item Code: 7UT63

Product Details:

Control functions/programmable logic

• Commands for control of CB and of isolators

• Graphical visualization of switch positions

• Control via keyboard, binary inputs, DIGSI 4 or SCADA system

• User-defined logic with CFC (e.g. interlocking)

Monitoring functions

• Operational measured values V, I, f

• Energy metering values Wp,Wq

• Circuit-breaker wear monitoring

• Slave pointer

• Trip circuit supervision

• Fuse failure monitor

• 8 oscillographic fault records

• Motor statistics

Communication interfaces

• System interface protocols: IEC 60870-5-103, IEC 61850, Modbus RTU, DNP3

• Electrical and optical interface

• RSTP (Redundancy Protocol for Ethernet)

• Service interface for DIGSI 4 or RTD-Box

• Front USB interface for DIGSI 4

• Time synchronization via IRIG B, DCF77

Hardware

• Spring-type terminals

• 4 current transformers

• 4 voltage transformers

• 16/22/36 binary inputs

• 7/10/23 output relays

• Graphic or 8 line display

Additional Information:

• Item Code: 7SJ66

Product Details:

Transformer differential protection

SIPROTEC 7UT613

The SIPROTEC 7UT613 differential protection relays are used for fast and selective fault clearing of short-circuits in transformers of all voltage levels and also in rotating electric machines like motors and generators, for short lines and busbars.

Features

The specific application can be chosen by parameterization. In this way an optimal adaptation of the relay to the protected object can be achieved.

 

In addition to the differential function, a backup overcurrent protection for 1 winding/ star point is integrated in the relay. Optionally, a low or high-impedance restricted earth-fault protection, a negative-sequence protection and a breaker failure protection can be used. 7UT613 features 4 voltage inputs. With this option an overvoltage and undervoltage protection is available as well as frequency protection, reverse / forward power protection, fuse failure monitor and overexcitation protection. With external temperature monitoring boxes (thermo-boxes) temperatures can be measured and monitored in the relay. Therefore, complete thermal monitoring of a transformer is possible, e.g. hot-spot calculation of the oil temperature.

7UT613 features full coverage of applications without external relays by the option of multiple protection functions e.g. overcurrent protection is available for each winding or measurement location of a transformer. Other functions are available twice: ground-fault differential protection, breaker failure protection and overload protection. Furthermore, up to 12 user-defined (flxible) protection functions may be activated by the customer with the choice of measured voltages, currents, power and frequency as input variables. The relays provide easy-to-use local control and automation functions.

The integrated programmable logic (CFC) allows the users to implement their own functions, e.g. for the automation of switchgear (interlocking). User-defined messages can be generated as well. The flexible communication interfaces are open for modem communication architectures with control system.

Hardware

• 12 current transformers, 1 IEE
• 4 voltage transformers
• 5 binary inputs
• 8 binary outputs
• Text display
• Surface-mounting or flush-mounting housing

Functions

Function overview

• Differential protection for 2- up to 3-winding transformers (3-/1-phase)
• Differential protection for motors and generators
• Differential protection for short 2 up to 3 terminal lines
• Differential protection for busbars up to 9 feeders (phase-segregated or with summation CT)

Protection functions

• Differential protection with phase-segregated measurement
• Sensitive measuring for low-fault currents
• Fast tripping for high-fault currents
• Restraint against inrush of transformer
• Phase-/earth overcurrent protection
• Overload protection with or without temperature measurement
• Negative-sequence protection
• Breaker failure protection
• Low-or high-impedance restricted earth fault (REF)
• Voltage protection functions

Control functions

• Commands for control of c.b. and isolators
• Control via keyboard, binary inputs, DIGSI 4 or SCADA system
• User-defined logic with CFC

Monitoring functions

• Self-supervision of the relay
• Trip circuit supervision
• Oscillographic fault recording
• Permanent differential and restraint current measurement, extensive scope of operational values

 

Additional Information:

• Item Code: SiemensSiprotec7UT613
• Production Capacity: Over 50000 per quarter
• Delivery Time: 4-5 business days
• Packaging Details: As per client's requirement

Product Details:

FunctionsProtection Functions

• Instantaneous Overcurrent Protection (50)

• Instantaneous Derived Earth Fault (50N)

• Instantaneous Measured Earth Fault (50G)

• Time Delayed Overcurrent (51)

• Time Delayed Derived Earth Fault (51N)

• Time Delayed Measured Earth Fault (51G)

• Line Check / Switch On To Fault (SOTF)

• Inrush Restraint

Features

• Self Powered

• 10 Fault Records

• 100 Event Records

• Password Protection

• Self Monitoring

• Overcurrent Protection Functions (Instantaneous and Delayed)

• Relay Integration via Reydisp Evolution PC Software

• Sensitivity of 20% Nominal Current

Hardware

• 4 Current Transformer with 1A or 5A Inputs

• 2 Binary Inputs

• 2 Latched Binary Outputs, 1 changeover and 1 normally open

• 1 Pulsed Output

User Interface

• 16 Character x 2 Line Backlit LCD

• Menu Navigation Keys

• 9 Predetermined LED’s for Easy Use

• Front USB Interface

Product Details:

We are the foremost firm of Overcurrent Relay. Our products are developed under the supervision of industry certified experts. In addition, we present this product at nominal costs.

 

Features:

 

• Affordable rates

• Durability

• Low maintenance

• Easy installation

• Top performance

• Longer working life

The 7SR10 overcurrent and earth fault relay is developed by using the latest generation of hardware technology and is available in two variants depending on Binary IO configuration and data communication facility. 7SR10 is a member of Siemens Reyrolle protection devices Argus product family. The 7SR10 overcurrent and earth fault relay is housed in a 4U high, size E4 non draw-out case and these relays provide protection, monitoring, instrumentation, and metering with integrated input and output logic, data logging and fault reports. Communication access to the relay functionality is via a front USB port for local PC connection or rear electrical RS 485 (optional) port for remote connection.

Additional Information:

• Item Code: 7SR10

Product Details:

SIEMENS 7SR158 ARGUS VOLTAGE AND FREQUENCY PROTECTION  RELAY

The Reyrolle 7SR158 Argus voltage and frequency relays are numerical, multifunctional devices, with functionality designed for connection to voltage transformers. The voltage and frequency functionality is supplemented by data storage, instrumentation, user configurable logic and data communication features. A menu based user friendly interface provides local access to relay settings, instruments and operational data. The fascia also benefits from 9 user configurable, tri-coloured LEDs and a USB port for PC access.The key functions provided include 27/59 -Under and Over voltage, 81 -Under and Over frequency, 78 -Voltage vector shift and 81R -Rate of change of frequency.Relays have three voltage inputs, six binary inputs and eight binary outputs and are housed in a size E4 case. Programmable logic is provided to allow the optimal configuration of relay functionality. A rear electrical RS485 port is provided for SCADA connection using either IEC60870-5-103, DNP3.0 or MODBUS RTU protocol.

Product Details:

SIEMENS 7SR10 REYROLLE OVERCURRENT PROTECTION NUMERICAL RELAYSIEMENS OVERCURRENT PROTECTION 7SR10 NUMERICAL RELAY 

The Reyrolle 7SR10 Argus overcurrent and earth fault relay is a numerical overcurrent protection relay intended as a low-cost solution for distribution and industrial applications.The Reyrolle 7SR10 Argus overcurrent and earth fault relay is developed using the latest generation of hardware technology and is available in multiple variants depending on the power supply, Binary input/binary output configuration and data communication facility.Housed in a 4U high, size 4 non-draw-out case and these relays provide protection, monitoring, instrumentation, and metering with integrated input and output logic, data logging, and fault reports. Communication access to the relay functionality is via a front USB port for local PC connection or rear electrical RS485 (optional) port for remote connection.

• It has Universal power supply suitable for both AC and DC. 
• 1A and 5A CT selectable at site. Basic communication protocol like MODBUS RTU and IEC 103 available and they are also site selectable. Relay are equipped with sufficient number of DI/DO i.e. upto 6 DI and 6 DO. 
• 7SR1003 is designed for current based protection and 7SR1004 is available with additional voltage inputs to take care of voltage based protections. 7SR1005 is designed for motor protection application.???

PROTECTION FUNCTIONS

• Broken Conductor, Load Unbalance (46BC)
• Negative Phase Sequence Overcurrent (46NPS)
• Thermal Overload (49)
• Instantaneous Overcurrent Protection (50)
• Instantaneous Earth Fault (50N/G)
• Time Delayed Overcurrent Protection (51)
• Time Delayed Derived/Measured Earth Fault Protection (51N/G)
• Cold Load Pickup (51C)
• Circuit Breaker Fail (50BF)
• Time Delayed Sensitive Earth Fault Protection (51SEF)
• Inrush Restraint (81HBL2)
• Instantaneous Sensitive Earth Fault (50SEF)

SUPERVISION FUNCTIONS

• Trip Circuit Supervision (74TC)
• Total Harmonic Distortion Supervision (81THD)

CONTROL FUNCTIONS

• Lockout (86)
• CB Control

Product Details:

The Reyrolle 7SR10 Argus overcurrent and earth fault relay is a numerical overcurrent protection relay intended as a low-cost solution for distribution and industrial applications.The Reyrolle 7SR10 Argus overcurrent and earth fault relay is developed using the latest generation of hardware technology and is available in multiple variants depending on the power supply, Binary input/binary output configuration and data communication facility.Housed in a 4U high, size 4 non-draw-out case and these relays provide protection, monitoring, instrumentation, and metering with integrated input and output logic, data logging, and fault reports. Communication access to the relay functionality is via a front USB port for local PC connection or rear electrical RS485 (optional) port for remote connection.

• It has Universal power supply suitable for both AC and DC. 
• 1A and 5A CT selectable at site. Basic communication protocol like MODBUS RTU and IEC 103 available and they are also site selectable. Relay are equipped with sufficient number of DI/DO i.e. upto 6 DI and 6 DO. 
• 7SR1003 is designed for current based protection and 7SR1004 is available with additional voltage inputs to take care of voltage based protections. 7SR1005 is designed for motor protection application.

7SR1003: Current based Protection Relay

·          Argus Non-directional overcurrent relay

·          Size 4 molded casing,

·          4 CT, 10 LEDs, 6 binary inputs/ 6 binary outputs

·          Measuring input: 1/5A, 50/60 Hz

·          Auxiliary voltage: 60 to 240 V AC/DC,

·          binary input tresh. 44 V AC/DC

·          Standard version - no cover

·          Communication: Front port: USB and rear: RS485 supporting IEC 60870-5-103 or Modbus RTU or DNP 3.0

·          Front fascia: w. breaker control pushbuttons

·         Protection function: standard version

PROTECTION FUNCTIONS

• Broken Conductor, Load Unbalance (46BC)
• Negative Phase Sequence Overcurrent (46NPS)
• Thermal Overload (49)
• Instantaneous Overcurrent Protection (50)
• Instantaneous Earth Fault (50N/G)
• Time Delayed Overcurrent Protection (51)
• Time Delayed Derived/Measured Earth Fault Protection (51N/G)
• Cold Load Pickup (51C)
• Circuit Breaker Fail (50BF)
• Time Delayed Sensitive Earth Fault Protection (51SEF)
• Inrush Restraint (81HBL2)
• Instantaneous Sensitive Earth Fault (50SEF)

Product Details:

SIEMENS 7SR10 REYROLLE NUMERICAL RELAYSSIEMENS OVERCURRENT PROTECTION 7SR10 NUMERICAL RELAY DEALER

The Reyrolle 7SR10 Argus overcurrent and earth fault relay is a numerical overcurrent protection relay intended as a low-cost solution for distribution and industrial applications.The Reyrolle 7SR10 Argus overcurrent and earth fault relay is developed using the latest generation of hardware technology and is available in multiple variants depending on the power supply, Binary input/binary output configuration and data communication facility.Housed in a 4U high, size 4 non-draw-out case and these relays provide protection, monitoring, instrumentation, and metering with integrated input and output logic, data logging, and fault reports. Communication access to the relay functionality is via a front USB port for local PC connection or rear electrical RS485 (optional) port for remote connection.

• It has Universal power supply suitable for both AC and DC. 
• 1A and 5A CT selectable at site. Basic communication protocol like MODBUS RTU and IEC 103 available and they are also site selectable. Relay are equipped with sufficient number of DI/DO i.e. upto 6 DI and 6 DO. 
• 7SR1003 is designed for current based protection and 7SR1004 is available with additional voltage inputs to take care of voltage based protections. 7SR1005 is designed for motor protection application.