+086-15305925923

K-WANG

Service expert in industrial control field!
NameDescriptionContent
Adequate Inventory, Timely Service
pursuit of excellence 
Ship control system
Equipment control system
Power monitoring system
Current position:
新闻动态
newS
   
Brand

ABB SPAD 346 C Stabilized Differential Relay

From: | Author:Wang | Time :2025-05-14 | 46 visit: | Share:

ABB SPAD 346 C Stabilized Differential Relay

product overview

The ABB SPAD 346 C Stable Differential Relay is a device that plays a critical role in power system protection and other aspects. It is designed specifically to ensure the safe and stable operation of electrical equipment, and through advanced technology and reliable performance, it accurately performs protection tasks in various complex power environments. It is an indispensable and important component in power systems and industrial fields.


Specification parameters

Rated voltage: It usually supports multiple common rated voltage levels, such as 220V, 110V, etc., and can be flexibly selected according to actual application scenarios and power system requirements to ensure compatibility with power systems of different voltage levels.

Rated current: able to adapt to different current ranges, common rated current specifications include 5A and 1A, meeting the current monitoring and protection needs of various electrical equipment under normal operation and fault conditions.

Measurement accuracy: The measurement accuracy of electrical quantities such as current and voltage is extremely high, with a current measurement accuracy of ± 0.2% and a voltage measurement accuracy of ± 0.5%, ensuring the accuracy of equipment operation status monitoring data and providing reliable basis for timely detection of potential problems.

Action time: When a fault is detected and it is determined that a protective action needs to be taken, it can respond quickly with a very short action time, usually between a few milliseconds to tens of milliseconds. For severe faults, the action time can be as low as 5ms, effectively reducing the damage caused by the fault to the equipment.



Control input and output relay module
The control input and output relay module of the differential relay SPAD 346 C is fitted to the
rear panel of the relay in the same direction as the mother board.
To remove the module, the fixing screws have to be undone and the protec tive earth cable of the module plus  the flat cable connecting the mother board to the module have to be disconnected.
The control input and output relay module contains the output relays (8 pcs + IRF), the control circuits of the relays, the electronic circuits of the external control inputs (5 pcs) and the D connector required for serial communica tion.
A flat cable links the output and input signals of the module to the mother board.
The relay module locations U1, U2 and U3 are identical.
The output signals SS1...SS4 and TS1...TS4 of  the mother board control an output relay with
the same designation.
The operation of the protection stages of the relay module is not fixed to any specific output relays, but the stages can be linked to the desired output signals.
In con trast, the output relays TS1, TS2, TS3 and TS4 are the only output relays capable of circuit
breaker control (see "Circuit-breaker control").
The configuration of the output relay matrix switchgroups of the relay modules is described
in the manuals of the relay modules.
Five external inputs BS1, BS2, BS3, BS4 and BS5 are available to the differential relay SPAD
346 C.
For example, the alarm and trip signals from the power transformer gas relay and the
winding temperature sensor can be linked to the external control inputs.
The external control inputs can be used for:- blocking one or several protection stages of the
relay modules- direct output relay control- the indication of the primary protection relay signals or operations- resetting the operation indicators, latched output relays, registers and recording memory- changing the actual setting values of the relay modules. i.e.switching from main setting val
ues to second setting values and vice versa.
The switchgroups of the relay modules are used to specify the influence of the external control
inputs BS1...BS5 on the operation of the relay and the active state of the control inputs.
The activation of a protection stage, a blocking function and an external control input is indi
cated on the display of the relay module by the red code representing the event.
The codes are explained in the manuals of the relay modules.
Event information is also received over the serial bus, when a protection stage, a blocking func
tion, an external control input or an output signal is activated.


Functional characteristics

Differential protection function: The core function of SPAD 346 C is differential protection. It can accurately compare the magnitude and phase of the current at both ends of the protected device. Once the difference in current between the two ends exceeds the predetermined threshold value, the protection action will be quickly triggered to cut off the circuit in a timely manner, effectively preventing equipment from being damaged due to internal fault currents and ensuring the safe and stable operation of the power system. For example, in important equipment such as generators and transformers, this differential protection function can quickly identify internal faults such as winding short circuits, avoiding the expansion of the fault range.

Excellent stability performance: With high stability, it can effectively resist common interference factors in the power system, such as unbalanced current caused by external short-circuit faults, current transformer saturation, etc. Through advanced algorithms and designs, faults can still be accurately diagnosed in complex power environments, reducing the possibility of misoperation and ensuring the reliability of protection functions.

Measurement and monitoring function: In addition to protection function, it can also accurately measure electrical quantities such as current and voltage. Real time monitoring of the operating parameters of the power system, and transmission of data to the monitoring system through communication interfaces, facilitates operation and maintenance personnel to understand the system's operating status at any time, discover potential problems in a timely manner, and take measures.


Application scenarios

Power plant: Used for the protection of equipment such as generators and plant transformers in power plants. As the core equipment of power plants, the safe operation of generators is crucial. The SPAD 346 C can detect faults in the internal windings of the generator in a timely manner, such as phase to phase short circuits, turn to turn short circuits, etc., to protect the generator from damage and ensure the normal power generation and output of the power plant.

Substation: Suitable for differential protection of main transformers, distribution transformers and other equipment in substations. Substation is an important link in voltage conversion and energy distribution in the power system, and the reliable operation of transformers directly affects the stability of the entire substation. This relay can quickly respond to internal faults in transformers, ensuring the safe operation of substations and avoiding large-scale power outages caused by transformer failures.

Industrial enterprises: Used in the power supply system of large industrial enterprises, such as steel plants, chemical plants, etc., for the protection of important electrical equipment. The production process of these enterprises relies heavily on electricity support, and the failure of key equipment may lead to production interruption, causing huge economic losses. SPAD 346 C can effectively protect high-voltage motors, large rectifier equipment, etc. in industrial enterprises, ensuring the continuity and stability of industrial production.

ABB SPAD346C3 Stabilized differential relay Reasonable price - SAUL ...


  • ABB CAI04 - Analog Input Module
  • ABB PM866-2 3BSE050201R1 - Process Manager Module
  • ABB CP405 A0 1SAP500405R0001 - Communication Processor
  • ABB R474A11XE HAFAABAAABE1BCA1XE - Protection Relay
  • ABB REF542PLUS 1VCR007346 - Protection Relay
  • ABB REF542PLUS 1VCF752000 - Protection Relay
  • ABB PPD113B03-26-100100 3BHE023584R2625 - Power Distribution Module
  • ABB PCD232A 3BHE022293R0101 - Process Control Module
  • ABB PFEA113-65 3BSE050092R65 - Process Control Module
  • ABB XVC768102 3BHB007211R102 - Control Module
  • ABB XVC767AE102 3BHB007209R0102 - Control Module
  • ABB CI857K01 3BSE018144R1 - Communication Interface Module
  • ABB 3ASC25H219B DATX133 - Control System Module
  • ABB 3ASC25H208 DATX100 - Control System Module
  • ABB 3ASC25H214 DATX130 - Control System Module
  • ABB 3ASC25H204 DAPU100 - Control System Module
  • ABB 3ASC25H216A DATX132 - Control System Module
  • ABB LWN2660-6 - Communication Module
  • ABB ICSE08B5 FPR3346501R1012 - Interface Module
  • ABB 1MRK00008-KB - Protection Relay Component
  • ABB UAD155A0111 3BHE029110R0111 - Control Module
  • ABB PU515A 3BSE032401R1 - Power Unit Module
  • ABB TU810V1 3BSE013230R1 - Terminal Unit
  • ABB XO08R2 1SBP260109R1001 - Output Module
  • ABB 3BHL000986P0006 - Communication Module
  • ABB SC540 3BSE006096R1 - System Controller
  • ABB REF615C_E HCFDACADABC2BAN11E - Protection Relay
  • ABB 5SHY4045L0001 3BHB018162R0001 3BHE009681R0101 GVC750BE101 - IGBT Power Module System
  • ABB P4LQA HENF209736R0003 - Power Module
  • ABB FENA-11 - Network Module
  • ABB COM0003 2RAA005844A0006A - Communication Module
  • ABB AIM0006 2RCA021397A0001F - Analog Input Module
  • ABB REF615C_C HCFFAEAGANB2BAN1XC - Protection Relay
  • ABB S-073N 3BHB009884R0021 - Power Module
  • ABB REF615E_E HBFHAEAGNCA1BNN1XE - Protection Relay
  • ABB TP830 3BSE018114R1 - Touch Panel
  • ABB 5SHX2645L0004 3BHL000389P0104 3BHB003154R0101 5SXE04-0150/GVC707AE01 - IGBT Power Module System
  • ABB DSAI146 3BSE007949R1 - Analog Input Module
  • ABB LC-608 - Control Module
  • ABB TK803V018 3BSC950130R1 - Terminal Module
  • ABB RF522 3BSE000743R1 - Field Communication Module
  • ABB DSRF197 3BSE019297R1 - System Module
  • ABB DSAO120A 3BSE018293R1 - Analog Output Module
  • ABB DSDP170 57160001-ADF - Process Control Module
  • ABB DSBC176 3BSE019216R1 - System Module
  • ABB DSDO115A 3BSE018298R1 - Digital Output Module
  • ABB DSDI110AV1 3BSE018295R1 - Digital Input Module
  • ABB BC810K01 3BSE031154R1 - Base Controller
  • ABB 5SHY3545L0010 3BHB013088R0001 3BHE009681R0101 GVC750BE101 - IGBT Power Module System
  • ABB 81943A041-1 - Industrial Component
  • ABB PM865K01 3BSE031151R1 - Process Manager Module
  • ABB SA168 3BSE003389R1 - System Module
  • ABB 5SHY3545L0016 3BHB020720R0002 3BHE019719R0101 GVC736BE101 - IGBT Power Module System
  • ABB TP853 3BSE018126R1 - Touch Panel
  • ABB REM545AG228AAAA - Protection Relay
  • ABB CI626A 3BSE005029R1 - Communication Interface Module
  • ABB NDCU-12C NDCU-12CK - Network Control Unit
  • ABB REM615C_D HCMJAEADAND2BNN1CD - Protection Relay
  • ABB IBA 940143201 - Interface Module
  • ABB PFSK151 3BSE018876R1 - Process Control Module
  • ABB IDPG 940128102 - Display Module
  • ABB PP825 3BSE042240R1 - Panel Module
  • ABB OCAH 940181103 - Control Module
  • ABB OCAHG 492838402 - Control Module
  • ABB TP857 3BSE030192R1 - Touch Panel
  • ABB PP865A 3BSE042236R2 - Panel Module
  • ABB CI854A-EA 3BSE030221R2 - Communication Interface Module
  • ABB SCYC51020 58052582H - System Control Module
  • ABB SCYC51090 58053899E - System Control Module
  • ABB SCYC51010 58052515G - System Control Module
  • ABB CB801 3BSE042245R1 - Communication Module
  • ABB SCYC51040 58052680E - System Control Module
  • ABB 5SHY4045L0001 3BHB018162R0001 - IGBT Power Module
  • ABB 5SHY6545L0001 AC10272001R0101 5SXE10-0181 - IGBT Power Module System
  • ABB RMU811 - Remote Monitoring Unit
  • ABB RFO810 - Field Output Module
  • ABB CS31 - Control System
  • ABB TVOC-2-240 1SFA664001R1001 - Voltage Controller
  • ABB SDCS-AMC-CLAS2 - Drive System Module
  • ABB LDSTA-01 - Display Module
  • ABB GJR5252300R3101 07AC91H - Control Module
  • ABB GJR5252300R3101 07AC91F - Control Module
  • ABB TB711F 3BDH000365R0001 - Terminal Base
  • ABB PM783F 3BDH000364R0001 - Process Manager Module
  • ABB CM772F 3BDH000368R0001 - Communication Module
  • ABB TU715F 3BDH000378R0001 - Terminal Unit
  • ABB DC732F 3BDH000375R0001 - DC Controller
  • ABB TTH300 - Terminal Module
  • ABB PFEA111-65 3BSE050091R65 - Process Control Module
  • ABB UNS3670A-Z V2 HIEE205011R0002 - Power Electronics Module
  • ABB RC527 3BSE008154R1 - Remote Controller
  • ABB 5SHY5055L0002 3BHE019719R0101 GVC736BE101 - IGBT Power Module System
  • ABB PM864AK01 3BSE018161R1 - Process Manager Module
  • ABB DSDP140A - Process Control Module
  • ABB UBC717BE101 3BHE021887R0101 - Power Electronics Module
  • ABB PPC380AE01 HIEE300885R0001 - Power Controller
  • ABB UFC718AE01 HIEE300936R0001 - Power Electronics Module
  • ABB KUC720AE01 3BHB003431R0001 3BHB000652R0001 - Control Unit System
  • ABB DSAI130A 3BSE018292R1 - Analog Input Module
  • ABB TP854 3BSE025349R1 - Touch Panel
  • ABB 5SHY3545L0016 3BHB019719R0101 GVC736BE101 5SXE06-0160 - IGBT Power Module System
  • ABB 07KT97 GJR5253000R4270 - Control Terminal
  • ABB 07KT98 GJR5253100R4278 - Control Terminal
  • ABB 07KT98 GJR5253100R0278 - Control Terminal
  • ABB PFTL101B 5.0KN 3BSE004191R1 - Force Sensor
  • ABB 5SHX1445H0002 3BHL000387P0101 - IGBT Power Module
  • ABB 3HNM07686-1 3HNM07485-1/07 - Motor Module
  • ABB GRBTU 3BSE013175R1 - Terminal Unit
  • ABB DSMB127 57360001-HG - System Module
  • ABB DSBB110A 57330001-Y - System Module
  • ABB DSCS131 57310001-LM - System Module
  • ABB DSCA114 57510001-AA - System Module
  • ABB PFSK130 3BSE002616R1 - Process Control Module
  • ABB PFSK164 3BSE021180R1 - Process Control Module
  • ABB PFSK162 3BSE015088R1 - Process Control Module
  • ABB PFSK160A 3BSE009514R1 - Process Control Module
  • ABB DSBC172 57310001-KD - System Module
  • ABB DSMC112 57360001-HC - System Module
  • ABB DSRF180A 57310255-AV - System Module
  • ABB DSTC175 57310001-KN - Terminal Controller
  • ABB DSSB140 48980001-P - System Module
  • ABB UAC389AE02 HIEE300888R0002 - Control Module
  • ABB UNS0881a-P,V1 3BHB006338R0001 - Power Electronics Module
  • ABB KUC755AE105 3BHB005243R0105 - Control Unit
  • ABB KUC755AE105 3BHB005243R0105 - Control Unit
  • ABB PM783F 3BDH000364R0002 - Process Manager Module
  • ABB 5SHY3545L0009 3BHB013085R0001 3BHE009681R0101 GVC750BE101 - IGBT Power Module System
  • ABB LXN1604-6 3BHL000986P7000 - Communication Module