SPAU140C ABB Synchro-Check Relay Dual-Stage for Generator Grid Connection
Price:
$2100
MOQ:
1
Delivery Time:
3-5 days
Brand:
ABB
Product Description
Product pictures

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:
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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.
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.
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.
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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Company
Xiamen Changxuyuan Trading Co., Ltd
Location
Room 202-5, Building 21, Wanghai Road, Software Park 2, Huli District, Xiamen, Fujian China 361008
Contact Person
Robin