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List of Device Numbers
$ `, Z$ f* \: ?2 y! X0 _, {Click to learn more...3 n2 u, f) |+ J3 m2 Y0 Q
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* 1 - Master Element0 _0 f: }6 q& s$ U2 E' Y; s: S
* 2 - Time Delay Starting or Closing Relay
: {, ~2 X' S4 ^9 ], [& D* ]3 _4 M * 3 - Checking or Interlocking Relay4 S7 I$ g W9 ^4 j$ q
* 4 - Master Contactor8 i1 {) I0 \; ~, ?( f5 O9 d2 J" a
* 5 - Stopping Device
: @8 I; }8 K* U6 P * 6 - Starting Circuit Breaker
( l! x) \6 M4 m8 n8 J1 a * 7 - Anode Circuit Breaker o _9 Q0 m4 y5 [* d% f4 r
* 8 - Control Power Disconnecting Device
, I6 d/ {4 m/ K; U8 n8 Z6 Q * 9 - Reversing Device
3 Q4 G1 A3 G( } * 10 - Unit Sequence Switch
2 z+ ]% Y4 D' V, z+ a * 12 - Overspeed Device
) |# x u5 H# t: D) a * 13 - Synchronous-speed Device2 @: r" G& e9 G) ]$ H2 ^
* 14 - Underspeed Device
* Q; @. Z' {* Y# p" j * 15 - Speed - or Frequency-Matching Device
- M8 o' |3 p( K% f6 T$ y * 21 - Distance Relay+ N* N9 z/ v9 _
* 23 - Temperature Control Device: Z1 v/ Y# J/ T4 N- `% u5 j' u; `( M
* 25 - Synchronizing or Synchronism-Check Device
H7 @4 C% s6 s C0 @9 K8 }$ I, E$ z * 26 - Apparatus Thermal Device# b. R% }4 y; {- B. q \
* 27 - Undervoltage Relay- H, Z8 N0 D" {3 ` D1 F: s' R& h8 n
* 29 - Isolating Contactor
6 t/ o# y4 n: Z, w5 M* F * 30 - Annunciator Relay
; Z+ X e: d/ z- e6 i * 32 - Directional Power Relay' S! q% G' Z. `7 [
* 36 - Polarity or Polarizing Voltage Devices
7 M: @) |& p" ~. w * 37 - Undercurrent or Underpower Relay, Y: h5 @1 s! _4 E6 {
* 38 - Bearing Protective Device# i8 @' \% r& s$ P+ s* y
* 39 - Mechanical Conduction Monitor9 i" \8 H2 ]- I7 d( b6 _
* 40 - Field Relay6 \, g8 y0 T) h1 A; K9 o! l+ ^
* 41 - Field Circuit Breaker, k- z) |, C L }" E
* 42 - Running Circuit Breaker
5 O7 l m" O/ P6 G* |5 ~5 u( E * 43 - Manual Transfer or Selector Device
; x" X5 q$ S5 p8 O * 46 - Reverse-phase or Phase-Balance Relay+ n" t/ y& l5 ]0 r
* 47 - Phase-Sequence Voltage Relay" |' L1 k6 V* ^; D! D" v0 K
* 48 - Incomplete-Sequence Relay
$ N8 S+ O9 _0 a i * 49 - Machine or Transformer Thermal Relay
: G2 n/ U7 r+ @3 u * 50 - Instantaneous Overcurrent
/ D% B- U. E9 _; p0 t; |6 j * 51 - AC Time Overcurrent Relay" h8 d3 t1 A2 w& U. }0 f
* 52 - AC Circuit Breaker0 ~# v0 b2 _3 n* C& x* X5 x- A9 V m
* 53 - Exciter or DC Generator Relay
) m' o P0 d# y# \( ]0 J * 54 - High-Speed DC Circuit Breaker, O. M* b: X6 f" L# ?
* 55 - Power Factor Relay% V3 S0 u# L% a0 |. ]# j" A
* 56 - Field Application Relay; c9 Z$ J" E9 Q, d/ G$ `
* 59 - Overvoltage Relay( y/ T* R/ I5 g, {( b
* 60 - Voltage or Current Balance Relay
) `/ H1 `4 k5 ~& Q& y' @/ L * 61 - Machine Split Phase Current Balance1 @4 G, [8 n0 A
* 62 - Time-Delay Stopping or Opening Relay
6 _/ V9 G6 U9 \! f. C% @ * 63 - Pressure Switch
7 G2 n8 _/ K# U( B2 F; _! o- r: h0 [ * 64 - Ground Detector Relay) E3 r. ~8 z! |. ^) K, j( z
* 65 - Governor6 _; n* \ G d$ T* h) I& j U9 Q
* 66 - Starts per Hour+ q- q% w, N% |5 Q8 V. P
* 67 - AC Directional Overcurrent Relay& _' z3 I" s3 G6 i
* 68 - Blocking Relay$ Z5 s: W! i5 d9 o
* 69 - Permissive Control Device6 q0 P7 B( q! G5 r3 U0 |
* 71 - Level Switch+ y0 M/ e) n( ~" i8 A- n0 T
* 72 - DC Circuit Breaker
3 `$ s6 F7 K/ o7 ~ * 74 - Alarm Relay
) B: h: f3 n) p$ g* I * 75 - Position Changing Mechanism1 |4 G' l) ]% Q0 z# V) `
* 76 - DC Overcurrent Relay% i2 E8 t* `0 |+ f5 R K
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
. W% X: u9 h) @5 H6 y * 79 - AC-Reclosing Relay4 T' {. |6 D4 Z: m. E/ P
* 81 - Frequency Relay1 {: G4 }! a$ U# o- J
* 83 - Automatic Selective Control or Transfer Relay
/ R% S7 Z5 e& ^ * 84 - Operating Mechanism
% S1 V' A( M- h, O * 85 - Carrier or Pilot-Wire Receiver Relay/ [, t6 \6 {$ t1 f
* 86 - Lockout Relay
- m- i5 F* n" c6 g * 87 - Differential Protective Relay3 m, d/ C: Q A: N
* 89 - Line Switch# H/ d3 T4 d" q5 b
* 90 - Regulating Device
. o" @" h& i$ @/ z( G; O: _: g! { * 91 - Voltage Directional Relay
) @+ W0 X! u! w4 q0 | * 92 - Voltage and Power Directional Relay6 ? X; ^0 S6 H$ Q2 I0 _0 b
* 94 - Tripping or Trip-Free Relay% `1 K; P# `* _& a8 D
* 95 - Reluctance Torque Synchrocheck& l# X" H5 U3 Q7 v+ s- u1 t
* 96 - Autoloading Relay |
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