-
Email Us justwellautomation@qq.com
ABB SPAD346C Stable Differential Relay
Item NO.:
SPAD346CPayment:
T/TPrice:
$1200Product Origin:
ChinaColor:
NEWLead Time:
In stockWe will arrange delivery within 3-5 days after receiving the payment.
Our express delivery: DHL and FedEx.
Quality packing for each product
Destination country all taxes & duty to be paid by buyer
Only part of the brand and model, if you have other product needs, please contact us.
The ABB SPAD346C is a stabilized differential relay designed for transformer and generator-transformer differential protection. Its stabilized design ensures reliability under inrush currents, CT saturation, and transient system conditions, preventing false tripping. The relay integrates three-phase differential protection, overcurrent protection, and earth-fault protection, providing high-reliability protection for large power equipment.
| Parameter | Specification |
|---|---|
| Model | SPAD346C |
| Rated Input Current | 1 A or 5 A (secondary) |
| Supply Voltage Range | AC/DC 80–265 V or DC 18–80 V (module-dependent) |
| Operating Time | Instantaneous differential stage approx. 30–40 ms |
| Modules | Differential module (SPCD 3D53), Earth-fault module (SPCD 2D55), Overcurrent/Earth-fault combination module (SPCJ 4D28) |
| Special Features | Second harmonic restraint (inrush protection), Fifth harmonic restraint (overexcitation protection), Digital CT ratio correction, Vector group compensation |
| Environmental Adaptation | High electromagnetic interference immunity, suitable for industrial power environments |
| Outputs | Multiple heavy-duty relay outputs, programmable I/O, disturbance recording |
Advantages
High sensitivity and stability: Accurate operation during inrush or CT saturation.
Integrated multi-function: Combines differential, overcurrent, and earth-fault protection.
Broad compatibility: Supports various transformer winding structures, CT ratios, and connection schemes.
Features
Digitally adjustable differential starting ratio and basic settings for load-based sensitivity calibration.
Built-in second and fifth harmonic restraint for inrush and overexcitation.
Event and disturbance recording for post-fault analysis.
Rugged design for high-voltage, high-current industrial environments.
User interface displays phase angle and current for verification of measurement circuits and vector group matching.
Two-winding power transformer protection (winding short-circuit, inter-turn faults, earth faults).
Generator-transformer unit protection.
Three-winding transformer protection (under specified short-circuit conditions).
Power systems, substations, and large industrial plants requiring comprehensive differential, earth-fault, and overcurrent protection.
Verify transformer connection, vector group, and CT ratio compatibility before selection.
Ensure proper CT polarity, correct wiring, and secure module installation before powering.
Digitally configure differential starting ratio, basic settings, and second knee point to balance sensitivity and stability.
Avoid installation in high temperature, high humidity, vibration, or strong electromagnetic interference areas.
Periodically check harmonic restraint functionality and event recording to ensure proper operation.
Maintain parameter settings, firmware version, and event logs for maintenance and replacement purposes.
The structure and details of the product：
Please make an inquiry for more models
ABB F400-30-11
ABB AF580-30-11 1SFL617001R6811
ABB AF52-30-00-13 1SBL367001R1300
ABB AF65-30-00-13
ABB AF750-30-11
ABB AFPS-11C
ABB AGPS-21C
ABB AI810 3BSE008516R1
ABB AI845 3BSE023675R1
ABB AINT-14C 68685826
ABB AO820-eA 3BSE008546R2
ABB CA5-01
ABB CA5-10 1SBN010010R1010
ABB CAL18-11 1SFN010720R1011
ABB CAL5-11
ABB CE4T-10R-02
ABB CE4T-10R-11
ABB CI801-eA 3BSE022366R2
ABB CL2-502G 1SFA619403R5022
ABB CL2-502R 1SFA619403R5021
ABB CL2-502Y
ABB CL2-523G
ABB CLMD63/60KVAR
ABB CP1-10G-11
ABB CP1-10R-11
ABB DATX130 3ASC25H214
ABB DI801 3BSE020508R1
ABB DO810 3BSE008510R1
ABB DO810-eA 3BSE008510R2
ABB DSBC172 57310001-KD
ABB DSMB176 57360001-HX
ABB DSMD113 5736045-N 8.7
ABB DSPC153
ABB AE50-30
ABB SACO 16D3-AA
ABB FPBA-01
ABB ACS880-01-072A-3 3AUA000000108022
ABB CDL5-01 1SBN013522R1001
ABB DSPC173
ABB DSPU120 57310001-HG
ABB DSQC661 3HAC026253-001
ABB DSSB-01C 3AFE68300746
ABB FI830F 3BDH000032R1
ABB GAF 1250-10-11*100-250V
ABB GAF 185-10-11**100-250V
ABB GAF460-10-11*100-250V
ABB GAF750-10-11*100-250V
ABB HA-2940U2W
ABB HIEE200130R0002 AFC094AE02
ABB HIEE205019R4 UNS2980c-ZV4
ABB HIEE220295R0001 NU8976A
ABB HIEE300661R1 UPC090AE01
ABB HIEE300690R1 ARC093AV1
ABB HIEE300725R1 UAC317AEV1
ABB HIEE300744R1 UAC318AE
ABB HIEE300766R1 GDB021BE
ABB HIEE300771R1 HAC319AEV1
ABB HIEE300771R1 UNS0874A
ABB HIEE300900R0001 PPC322BE
ABB HIEE300910R1 UFC092BE01
ABB HIEE320639R1 LT8978bV1
ABB HIEE400103R1 CSA463AE
ABB HIEE400106R1 CSA464AE
Other best-selling products：
All brand names, trademarks, logos, and commercial identifiers (hereinafter referred to as "Third-Party Marks") mentioned on this website are the property of their respective owners. Any use of Third-Party Marks on this website is for descriptive, commentary, or identification purposes only and constitutes "fair use" under trademark law, with no intention of infringement.
This website is not affiliated with, endorsed by, or authorized by the owners of any Third-Party Marks. Unless expressly stated otherwise, this website does not claim ownership or make any representations regarding the validity, legal status, or quality of products associated with such marks.
IPv6 network supported
All Categories
