DEEP SEA ELECTRONICS DSE8610 MKII Operator's Manual page 59

Standard
IEEE C37.2
(Standard Electrical
Power System Device
Function Numbers and
Contact Designations)
In line with our policy of continual development, Deep Sea Electronics, reserve the right to change specification without notice.
Specification
Description
Continued...
15 – Speed or frequency matching device.
23 – Temperature control device
25 – Synchronising or synchronism check relay
26 – Apparatus thermal device
27AC – AC undervoltage relay
27DC – DC undervoltage relay
29 – Isolating contactor or switch
30 – Annunciator relay
31 – Separate Excitation Device
37 – Undercurrent or underpower relay (USING INTERNAL PLC
EDITOR)
40 – Field relay / Loss of excitation
42 – Running circuit breaker
44 – Unit sequence relay
46 – Reverse-phase or phase-balance current relay
48 – Incomplete sequence relay
49 – Machine or transformer thermal relay
50 – Instantaneous overcurrent relay
51 – AC time overcurrent relay
52 – AC circuit breaker
53 – Exciter or DC generator relay
54 – Turning gear engaging device
55 – Power factor relay (USING INTERNAL PLC EDITOR)
59AC – AC overvoltage relay
59DC – DC overvoltage relay
62 – Time delay stopping or opening relay
63 – Pressure switch
71 – Level switch
74 – Alarm relay
78 – Phase-angle measuring relay
79 – Reclosing relay (USING INTERNAL PLC EDITOR)
81 – Frequency relay
83 – Automatic selective control or transfer relay
86 – Lockout relay
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