Bently Nevada 3300/53-03-01-00-01 Overspeed Protection System

The Bently Nevada 3300/53-03-01-00-01 Overspeed Protection System is a high-performance overspeed detection and shutdown device designed for critical rotating machinery. It ensures safe and reliable operation by continuously monitoring shaft speed and initiating protective action when overspeed conditions are detected. Engineered for demanding environments such as power generation, oil and gas, and process industries, this system integrates advanced speed-sensing technology with redundant channels to meet stringent safety requirements. Its robust design and proven reliability make it a cornerstone for turbine, compressor, and motor protection applications.

Product Specifications

Applications

• Steam and Gas Turbines – Provides critical overspeed protection for turbine-driven systems.

• Compressors – Ensures safe operation by preventing catastrophic overspeed failure.

• Generators and Motors – Monitors and controls rotational speed during load variations.

• Power Plants – Enhances safety in high-speed rotating machinery in power generation facilities.

• Oil & Gas Processing – Essential for compressors and pumps in refineries and offshore platforms.

• Industrial Machinery – Used in critical manufacturing and process equipment for speed regulation.

Product Advantages

• High Reliability: Triple-channel redundancy for fault tolerance.

• Fast Response: Rapid trip action within milliseconds of overspeed detection.

• Fail-Safe Design: Automatically defaults to a safe state on system failure.

• Seamless Integration: Fully compatible with Bently Nevada 3500 monitoring systems.

• Wide Operating Range: Suitable for a broad range of machinery speeds.

• Regulatory Compliance: Meets API 670 standards for overspeed protection systems.

FAQ

1. How does the 3300/53 system detect overspeed conditions?

It uses input from Keyphasor® probes or proximity sensors to calculate shaft speed in real-time and compare it to preset trip thresholds.

2. What is the reaction time after detecting overspeed?

The system responds in less than 40 milliseconds to initiate a trip command.

3. How many input channels does the system support for redundancy?

It supports three independent speed measurement channels with 2-out-of-3 voting logic.

4. Can it integrate with the Bently Nevada 3500 Series system?

Yes, it is fully compatible with the 3500 monitoring and protection platform.

5. How does the trip logic work in the event of a single channel failure?

The system uses 2-out-of-3 voting logic, so a single channel failure will not cause a false trip.

6. What power supply options are available?

It can operate on either 24 VDC or 110/220 VAC depending on the configuration.

7. Does the system provide diagnostic information?

Yes, it includes built-in self-test and diagnostics for channel integrity and system health monitoring.

8. What type of speed input signals does it accept?

It accepts signals from Keyphasor® proximity probes or magnetic speed sensors.

9. Is the system compliant with API standards?

Yes, it meets API 670 standards for overspeed protection systems.

10. How is the overspeed setpoint configured?

Setpoints are programmed using the system interface or through the connected 3500 rack.