The GEC Measurements VAUSPEC2PF200IT is a specialized protection relay designed for power system stability and electrical fault management. Originally developed under the GEC Measurements brand (later part of Alstom and AREVA), the VAUSPEC series is recognized for its reliability in monitoring voltage and current parameters to protect industrial transformers, motors, and distribution networks. This specific unit provides critical trip and alarm functions to prevent equipment damage during abnormal electrical conditions.

Product Datasheet & Technical Specifications

This relay is engineered for precise electrical monitoring. Key parameters for the VAUSPEC2PF200IT include:

• Model Series: VAUSPEC (Voltage/Auxiliary Special Protection)
• Configuration Code: 2PF200IT
• Mounting Type: Flush or Projection mounting (typical for 19-inch rack or panel integration)
• Output Contacts: Multiple high-duty changeover contacts for tripping and signaling
• Input Sensitivity: Optimized for secondary CT/VT signals
• Casing: Durable metal modular housing designed for high-interference environments
• Burden: Low burden on measuring circuits to ensure high accuracy

 

Country of Origin

This protection relay was primarily manufactured in the United Kingdom (UK), specifically at the Stafford site, which has a long-standing history of producing world-class protection and control equipment.

 

Application Fields

The VAUSPEC2PF200IT is widely utilized in medium to high-voltage infrastructures:

• Substation Automation: Monitoring busbars and feeder lines for electrical faults.
• Industrial Power Plants: Protecting heavy-duty rotating machinery and generators.
• Transformer Protection: Detecting overvoltage or undercurrent scenarios that threaten insulation.
• Marine & Offshore: Integrated into shipboard power management systems for engine and propulsion safety.
• Mining & Metal Processing: Ensuring continuous power supply for critical extraction equipment.

 

Product Instructions & Technical Notes

When installing the GEC Measurements VAUSPEC2PF200IT, it is vital to verify the auxiliary supply voltage matches the rating plate to avoid internal component failure. Wiring should follow the standard schematics for trip circuit supervision. Due to the precision nature of the internal electromagnetic or solid-state components, regular secondary injection testing is recommended every 2–4 years to ensure the relay still trips within its specified time-current characteristic curves. Ensure the rear terminal blocks are securely tightened to prevent intermittent faults.

 

Q&A – Frequently Asked Questions

Q1: Is this relay compatible with modern digital substations? A: While this is a traditional analog/modular relay, it can be integrated into modern systems using transducers or I/O modules to relay its dry contact signals to a SCADA system.

Q2: How can I tell if the relay has tripped? A: The front panel typically features a mechanical flag (target) or an LED indicator that remains visible until manually reset by the operator.

Q3: Can the VAUSPEC2PF200IT be repaired? A: Yes, these units were designed to be serviceable. Many industrial facilities opt for refurbishing these units because of their proven long-term reliability compared to newer digital equivalents.

Q4: Does this model handle overcurrent protection? A: The VAUSPEC series contains various functional modules; the “2PF” designation often indicates a specific auxiliary or voltage-based logic configuration tailored for system-specific protection.

 

Similar Model Recommendations

1. GEC Measurements VAVS21 (Voltage Sensitive Relay)
2. GEC Measurements VAGM22 (Auxiliary Relay)
3. Alstom MAVW series (Modern equivalent to VAUSPEC functionality)
4. GEC Measurements METI (Earth Fault Protection Relay)
5. GEC Measurements MCGG (Overcurrent Relay series)