Table of Contents

1 Scope
2 Normative References
3 Terms, Definitions, Acronyms, and Abbreviations
4 General Design Specifications
5 Sensors and Transducers
6 Sensor and Transducer Arrangements
7 Vibration Monitor Systems
8 Electronic Overspeed Detection System
9 Surge Detection Systems
10 Emergency Shutdown Systems (ESDs)
11 Inspection, Testing, and Preparation for Shipment
12 Vendor's Data
Annex A (informative) - Machinery Protection System Datasheets
Annex B (informative) - Typical Responsibility Matrix Worksheet
Annex C (normative) - Accelerometer Application Considerations
Annex D (normative) - Signal Cable
Annex E (normative) - Gearbox Casing Vibration Considerations
Annex F (normative) - Field Testing and Documentation Requirements
Annex G (informative) - Contract Drawing and Data Requirements
Annex H (informative) - Typical System Arrangement Plans
Annex I (informative) - Setpoint Multiplier Considerations
Annex J (normative) - Electronic Overspeed Detection System
        Considerations
Annex K (informative) - Surge Detection and Antisurge Control
Annex L (informative) - Safety Integrity Level
Annex M (informative) - Considerations Regarding Spurious Shutdowns
        and the Use of Functional Safety Methodology to Reduce
        Economic Losses
Annex N (informative) - Condition Monitoring
Annex O (normative) - Overspeed
Annex P (informative) - Reciprocating Compressor Monitoring
Annex Q (informative) - Considerations when Using Wireless
        Connectivity Technologies
Bibliography

Abstract

Describes the minimum requirements for a machinery protection system measuring radial shaft vibration, casing vibration, shaft axial position, shaft rotational speed, piston rod drop, phase reference, overspeed, and critical machinery temperatures (such as bearing metal and motor windings).

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
Pages
ISBN
Supersedes	API 678 : 1ED 81(R1987)