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List of Device Numbers
}/ O7 S8 n# e: @% M6 V" @6 v/ N) tClick to learn more...# q/ Z: F, ?# ] @7 \
( X3 h' I0 d5 j3 r Y4 v2 t0 Q * 1 - Master Element
0 k2 Z/ N4 \& ]( I5 M3 ~& n' c * 2 - Time Delay Starting or Closing Relay7 c0 u( p8 M6 B) C
* 3 - Checking or Interlocking Relay
$ U0 m7 ^5 U9 w3 J+ d * 4 - Master Contactor; r/ [ |3 Q; Z* Y6 e+ |
* 5 - Stopping Device
1 y0 a" @, i9 Q ~+ P) [, E * 6 - Starting Circuit Breaker. a- b6 H& |$ N
* 7 - Anode Circuit Breaker
- C. I$ F8 N q& I2 V- o7 f * 8 - Control Power Disconnecting Device$ I! X8 K* Y% p( Q- F9 {( r# ?/ |
* 9 - Reversing Device
! w6 ]: b3 c% C" W6 a9 ^- s * 10 - Unit Sequence Switch
+ {7 q; K8 r v$ n* V0 B * 12 - Overspeed Device
3 m7 b/ K3 n1 w' _ * 13 - Synchronous-speed Device7 ^. j: w/ j% I6 z7 z
* 14 - Underspeed Device
$ H" o" D* J- m * 15 - Speed - or Frequency-Matching Device
5 V$ x g2 j$ K * 21 - Distance Relay
. A4 X- x5 {+ p$ A1 D * 23 - Temperature Control Device# O3 u' K- l# z
* 25 - Synchronizing or Synchronism-Check Device1 ?2 T; A [; W* X+ w+ c; }# d
* 26 - Apparatus Thermal Device
1 Y& D. z+ |0 t2 F0 y$ x( b * 27 - Undervoltage Relay
+ F) N4 \. V$ T0 g9 I * 29 - Isolating Contactor
) g) x3 Z& \* j * 30 - Annunciator Relay g5 S+ z) |0 _8 {/ |
* 32 - Directional Power Relay
/ z# G$ |" s# ]6 C" q * 36 - Polarity or Polarizing Voltage Devices
' h6 W5 a/ j( z/ m- j * 37 - Undercurrent or Underpower Relay
4 g1 f# r6 q. S9 I- @, m * 38 - Bearing Protective Device
- |$ }3 w p) ?# S% @/ W5 X * 39 - Mechanical Conduction Monitor
1 k% j# w/ L) H* P n * 40 - Field Relay# @' V; e* D! L# u+ [+ R
* 41 - Field Circuit Breaker7 p# X; N7 m0 _4 M: H( Y
* 42 - Running Circuit Breaker
0 s7 h5 t6 U( v2 d% g% I * 43 - Manual Transfer or Selector Device
/ o" w# U6 k+ x7 W * 46 - Reverse-phase or Phase-Balance Relay
: f" C) Q# Q5 `* |" v * 47 - Phase-Sequence Voltage Relay8 a/ W' y# k6 I, l; o
* 48 - Incomplete-Sequence Relay
1 J* @, V: r) c! Z! M * 49 - Machine or Transformer Thermal Relay
# S1 m" h: g7 C) Q/ B2 V * 50 - Instantaneous Overcurrent
, Z6 h- ]8 n' o* |3 D * 51 - AC Time Overcurrent Relay( s* c. N: N+ C, T7 u
* 52 - AC Circuit Breaker
/ B9 @. Q: i6 O: _ * 53 - Exciter or DC Generator Relay# ]) \" B* n- p% j
* 54 - High-Speed DC Circuit Breaker2 S9 d+ B, A4 Y/ e0 X9 a4 w
* 55 - Power Factor Relay
8 F* s9 U* O+ O H# u6 P * 56 - Field Application Relay
# R" W7 E6 |5 J' a! Y6 g * 59 - Overvoltage Relay- `9 `2 _; P" `
* 60 - Voltage or Current Balance Relay
8 F& B, {& k5 W/ p: f * 61 - Machine Split Phase Current Balance
( ?( K9 ]) K3 p Q8 k( ? * 62 - Time-Delay Stopping or Opening Relay" J* ]+ Q9 v- A9 o+ R7 ^9 X
* 63 - Pressure Switch
% U/ u+ O2 \% r& s8 {( {4 _ * 64 - Ground Detector Relay
+ @6 s) u5 {& K/ X * 65 - Governor
& z r+ k0 W0 C6 s9 I * 66 - Starts per Hour
3 o' u8 ?4 f* t" I * 67 - AC Directional Overcurrent Relay. s/ C8 L4 h) O" X3 w1 m0 C
* 68 - Blocking Relay+ |3 y7 C& ?* O8 \/ }. |
* 69 - Permissive Control Device5 e9 h6 Y; B1 i& j' T
* 71 - Level Switch& D$ F7 z" X$ {5 V y
* 72 - DC Circuit Breaker* R+ d1 j/ V5 _1 }
* 74 - Alarm Relay
* v% E! Q1 y7 f" D1 h" _ * 75 - Position Changing Mechanism. J' k7 n+ F, R0 l
* 76 - DC Overcurrent Relay6 c3 v) a9 Z) `1 _, }' m; o
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
2 X: d7 @2 u! I% J * 79 - AC-Reclosing Relay
6 @, \7 j% v3 @5 {. ~$ K * 81 - Frequency Relay# P0 G/ T! L; Y. D9 o: {
* 83 - Automatic Selective Control or Transfer Relay
; N1 n. k0 a* J. B * 84 - Operating Mechanism7 ~ R, V, h5 k7 i: R6 S& g
* 85 - Carrier or Pilot-Wire Receiver Relay
% ?$ E8 O5 j, S. j * 86 - Lockout Relay' B) L3 [* i' r3 {4 c
* 87 - Differential Protective Relay7 S6 I% _: H& L
* 89 - Line Switch3 r# I) a I3 A% t1 v' K P
* 90 - Regulating Device
/ s6 r9 Q3 ~- k- J0 R% O4 q * 91 - Voltage Directional Relay: G/ c/ \$ O, ~' V1 v9 M, e" I
* 92 - Voltage and Power Directional Relay
2 f1 p5 P" X, e% x2 ]+ s; I; e# _ * 94 - Tripping or Trip-Free Relay
5 u3 |/ {6 i7 M" S H# E' z X, a * 95 - Reluctance Torque Synchrocheck& J2 }. u: X- }" r" ^$ ^: V0 G
* 96 - Autoloading Relay |
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