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SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
Specifications
Model Number :
SPAU140C
MOQ :
1
Delivery Time :
3-5 days
Shipping :
DHL (default) / FedEx / UPS / TNT / Air / Sea
Payment Terms :
T/T,Alipay,Paypal
Trade Terms :
EXW, DAP, FOB, CIF
Shipping Weight :
1.8 kg
Brand Name :
ABB
Packaging Details :
Brand new and original
Price :
$2100
Condition :
Brand new and original
Supply Ability :
99+
Customer Courier A/C :
Yes – DHL/FedEx/UPS account accepted
Certification :
COO & COC
Packing Size :
144 mm × 144 mm × 190 mm
Place of Origin :
Sweden
Description

Product pictures

SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection

Product Overview: ABB SPAU140C

Parameter Specification
Manufacturer ABB
Model SPAU140C
Product Series SPACOM Protection Relays
Device Type Numerical synchro-check relay
Primary Function Synchro-check & voltage-check protection

Application & Fault Scenarios

Typical Uses: Monitors voltage, frequency, and phase angle between two power systems before closing a circuit breaker. Used in generator-to-grid synchronization, busbar paralleling, and transmission line reclosing. Dual-stage design supports simultaneous checking of two separate breakers.
Common Field Issues:
  • No sync permission → verify voltage inputs U1/U2/U3 are connected correctly; check that both sides of the breaker are energized; confirm sync window settings (ΔU, Δf, Δφ) are not too narrow.
  • IRF alarm (internal relay fault) → check auxiliary power supply (AC 80–265V / DC 18–80V); verify DIP switch voltage setting (100V vs 110V); inspect RS485 communication wiring.

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FAQ

Q1: What is ABB SPAU140C?
A: The SPAU140C is a numerical synchro-check relay manufactured by ABB in Finland. It monitors voltage magnitude, frequency, and phase angle between two power systems and permits circuit breaker closing only when all parameters fall within preset synchronization windows.
Q2: What is the difference between synchro-check and voltage-check functions?
A: Synchro-check verifies that both sides of a circuit breaker have matching voltage, frequency, and phase angle before allowing closure (used when connecting two live systems). Voltage-check only verifies that a disconnected bus/line has acceptable voltage before connecting it to an energized network section.
Q3: How many circuit breakers can SPAU140C monitor?
A: The SPAU140C has two identical operation stages, allowing it to simultaneously check the closing conditions of two separate circuit breakers. Each stage has independent synchro-check and voltage-check functions.
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SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection

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Product Detail
Model Number :
SPAU140C
MOQ :
1
Delivery Time :
3-5 days
Shipping :
DHL (default) / FedEx / UPS / TNT / Air / Sea
Payment Terms :
T/T,Alipay,Paypal
Trade Terms :
EXW, DAP, FOB, CIF
Contact Supplier
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection

Xiamen Changxuyuan Trading Co., Ltd

Verified Supplier
2 Years
fujian, xiamen
Since 2020
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Exporter, Trading Company, Seller, Other
Main Products :
ABB Spare Parts, Schneider Electric PLC, Bently Nevada Spare Parts
Total Annual :
3000000+-4000000+
Employee Number :
80~120+
Certification Level :
Verified Supplier
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