Standard Ieee Device Numbers - Eaton Cutler-Hammer FP 5000 Instruction Leaflet

IL17569C
Page 13-4 Effective Date: 12/05

13.3 Standard IEEE Device Numbers

Standard IEEE Device Numbers for power devices are covered under IEEE document, IEEE Standard Electrical Power System Device
Function Numbers and Contact Designations, # C37.2-1996, ISBN 0-7381-0732-8.
Some typical device numbers are used frequently within this document and throughout Cutler-Hammer's product and other documentation.
For a complete list, please see the IEEE document referenced above.
Device Description (Function)
Number
25. Sync-Check
Function
27. Undervoltage Relay Relay that operates when the voltage drops below a programmed value.
32. Power Protection
46. Reverse-Phase,
or Phase-Balance,
Current Relay
47. Phase-Sequence
Voltage Relay
50. Instantaneous
Overcurrent, or
Rate-of-Rise Relay
51. ac Time Over
Current Relay
52. ac
Circuit Breaker
55. Power Factor Relay Relay that operates when the power factor in an ac circuit rises above or below a
59. Overvoltage Relay
67. Directional
Overcurrent
81. Frequency Relay
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FP-5000
Operates when two ac circuits are within the desired limits of frequency, phase angle or
voltage, to permit or to cause the paralleling of these two circuits.
Functions on a desired value of power flow in a given direction or upon reverse power.
Relay which functions when the polyphase currents are of reverse-phase sequence,
or when the polyphase currents are unbalanced or contain negative phase-sequence
components above a given amount.
Functions upon a predetermined value of polyphase voltage in
the desired phase sequence.
Relay that functions instantaneously on an excessive value of current, or on an exces-
sive rate of current rise, thus indicating a fault in the apparatus or circuit being protected.
Relay with either a definite or inverse time characteristic that functions when
the current in an ac circuit exceeds a predetermined value.
Device that is used to close and interrupt an ac power circuit under normal conditions
or to interrupt this circuit under fault or emergency conditions.
predetermined value.
Relay that operates when the voltage rises above a programmed value.
Relay that functions on a desired value of ac overcurrent flowing in a predeterminated
direction.
Relay that operates when the frequency falls outside a programmed range.
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