Specifications

H4
GE Limitamp
®
Medium Voltage Motor Control
Application Data
H
ANSI Standard Device Function Numbers
Dev. No. Function
51 AC Time Overcurrent Relay
52 AC Circuit Breaker
53 Exciter or DC Generator Relay
54 (Reserved for future application)
55 Power Factor Relay
56 Field Application Relay
57 Short-Circuiting or Ground Device
58 Rectification Failure Relay
59 Overvoltage Relay
60 Voltage or Current Balance Relay
61 (Reserved for future application)
62 Time-Delay Stopping or Opening Relay
63 Pressure Switch
64 Ground Protective Relay
65 Governor
66 Notching or Jogging Device
67 AC Directional Overcurrent Relay
68 Blocking Relay
69 Permissive Control Device
70 Rheostat
71 Level Switch
72 DC Circuit Breaker
73 Load-Resistor Contactor
74 Alarm Relay
75 Position Changing Mechanism
76 DC Reclosing Relay
77 Pulse Transmitter
78 Phase-Angle Measuring or Out-of-Step Protective Relay
79 AC Reclosing Relay
80 Flow Switch
81 Frequency Relay
82 DC Overcurrent Relay
83 Automatic Selective Control or Transfer Relay
84 Operating Mechanism
85 Carrier or Pilot-Wire Receiver Relay
86 Locking-Out Relay
87 Differential Protective Relay
88 Auxiliary Motor or Motor Generator
89 Line Switch
90 Regulating Device
91 Voltage Directional Relay
92 Voltage and Power Directional Relay
93 Field-Changing Contactor
94 Tripping or Trip-Free Relay
95
Used only for specific applications in individual
installations where none of the assigned
numbered functions from 1 to 94 are suitable.
96
97
98
99
Dev. No. Function
1 Master Element
2 Time-Delay Starting or Closing Relay
3 Checking or Interlocking Relay
4 Master Contactor
5 Stopping Device
6 Starting Circuit Breaker
7 Anode Circuit Breaker
8 Control Power Disconnecting Device
9 Reversing Device
10 Unit Sequence Switch
11 (Reserved for future application)
12 Over-Speed Device
13 Synchronous-Speed Device
14 Under-Speed Device
15 Speed or Frequency Matching Device
16 (Reserved for future application)
17 Shunting or Discharge Switch
18 Accelerating or Decelerating Device
19 Starting-to-Running Transition Contactor
20 Electrically Operated Value
21 Distance Relay
22 Equalizer Circuit Breaker
23 Temperature Control Device
24 (Reserved for future application)
25 Synchronizing or Synchronism-Check Device
26 Apparatus Thermal Device
27 Undervoltage Relay
28 Flame Detector
29 Isolating Contactor
30 Annunciator Relay
31 Separate Excitation Device
32 Directional Power Relay
33 Position Switch
34 Master Sequence Device
35 Brush-Operating or Slip-Ring Short-Circuiting Device
36 Polarity or Polarizing Voltage Device
37 Undercurrent or Underpower Relay
38 Bearing Protective Device
39 Mechanical Condition Monitor
40 Field Relay
41 Field Circuit Breaker
42 Running Circuit Breaker
43 Manual Transfer or Selector Device
44 Unit Sequence Starting Relay
45 Atmospheric Condition Monitor
46 Reverse-Phase or Phase-Balance Current Relay
47 Phase-Sequence Voltage Relay
48 Incomplete Sequence Relay
49 Machine or Transformer Thermal Relay
50 Instantaneous Overcurrent or Rate-of-Rise Relay