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List of Device Numbers
: f$ u. \9 f C* J$ kClick to learn more...; y$ |# ~. I$ L2 U7 V/ l$ h8 k
( X( o' b$ Y' y2 R3 y E * 1 - Master Element
0 Q- Q& t8 l6 I. Q* X) V3 D1 ^ * 2 - Time Delay Starting or Closing Relay
1 y. s' e1 V% J8 F7 N) ?8 n8 {" w * 3 - Checking or Interlocking Relay
6 z* K7 d7 q' ^5 h9 |3 ? * 4 - Master Contactor- C. z* K# c% ? @, R) v
* 5 - Stopping Device# @( o3 N. |. I( s
* 6 - Starting Circuit Breaker4 ~' c9 s, m, t; E0 Q
* 7 - Anode Circuit Breaker9 N7 D+ F" f2 @" ]( o
* 8 - Control Power Disconnecting Device
( W$ m- @/ |/ [' F: w7 Q * 9 - Reversing Device; {& w) r! o1 I3 |
* 10 - Unit Sequence Switch
' m% {, }& D" r; a/ {' r2 j * 12 - Overspeed Device& c, t+ \* T/ S1 G0 t" T. @
* 13 - Synchronous-speed Device
4 O! q) }2 _/ B: r * 14 - Underspeed Device9 Y5 @0 b9 n" g. ?
* 15 - Speed - or Frequency-Matching Device- o0 |( t/ c+ W7 b
* 21 - Distance Relay/ D3 {- x8 l6 n/ d# M1 ~
* 23 - Temperature Control Device, r' g6 X1 m r, r+ Z! B' K* W" T3 P! K2 B5 m
* 25 - Synchronizing or Synchronism-Check Device( I+ A/ R7 d* I1 p5 ], v
* 26 - Apparatus Thermal Device+ C- Q2 I$ z$ _' @/ \0 ~( t. G& S
* 27 - Undervoltage Relay8 i. D; C7 {( V8 c) T( w0 v
* 29 - Isolating Contactor
" f/ m" ?, E" }2 h * 30 - Annunciator Relay
9 `) R+ m) ~. }( u! z6 o% n * 32 - Directional Power Relay
( \1 L6 Y# {" R3 \0 a! u0 J * 36 - Polarity or Polarizing Voltage Devices+ I* K9 [$ m' ^0 i3 N
* 37 - Undercurrent or Underpower Relay
/ Z5 @% Y/ c6 M, e5 W. ~$ q F, _/ Z * 38 - Bearing Protective Device
: o* z; S, r' u3 V( Z6 S# ] * 39 - Mechanical Conduction Monitor @+ p6 L/ P5 R5 Z
* 40 - Field Relay" l' g+ r) g7 k3 D: }# V8 _
* 41 - Field Circuit Breaker
- Q$ F+ x( d6 O! x( q# h% y * 42 - Running Circuit Breaker
! Z, h) u8 p! d4 q. h% B% m7 e( a * 43 - Manual Transfer or Selector Device
3 l' U5 Z- D9 }, f * 46 - Reverse-phase or Phase-Balance Relay u S+ V" {2 \
* 47 - Phase-Sequence Voltage Relay
6 {0 T N- a$ d, k; H: B) s * 48 - Incomplete-Sequence Relay
0 _0 T4 Q* Z$ G' t3 Y * 49 - Machine or Transformer Thermal Relay
- L* q' F$ q3 _& L3 j * 50 - Instantaneous Overcurrent# x1 Q( A) g1 B) p2 I; [! R
* 51 - AC Time Overcurrent Relay) I, B. b6 k! x+ y3 x
* 52 - AC Circuit Breaker
' e }8 C1 k0 |5 X# D6 Y6 s0 l * 53 - Exciter or DC Generator Relay2 D0 _3 w) k5 `- Y& J1 E) x) t
* 54 - High-Speed DC Circuit Breaker
# [ W4 ^ ` U5 p. ~7 V/ c * 55 - Power Factor Relay
. C! O" L ^/ z3 L( g- S9 B/ K) [ * 56 - Field Application Relay% l: [# W9 w3 n+ L0 M5 t8 q# u
* 59 - Overvoltage Relay2 R$ s- _& X' C- J/ e) F, {2 [" B; O! J
* 60 - Voltage or Current Balance Relay& s- ~ d: |! ?1 N$ Y9 H/ b+ E
* 61 - Machine Split Phase Current Balance& c- y2 Q! u) S, I# O7 ^
* 62 - Time-Delay Stopping or Opening Relay: g4 D, a W3 U
* 63 - Pressure Switch1 m, ^ P* O3 g/ e+ W0 c3 z: D+ l
* 64 - Ground Detector Relay# ^8 s; H; Q2 E0 B& M
* 65 - Governor
: t/ \+ b' }3 P9 _ l8 j! n * 66 - Starts per Hour
! o1 d* k6 L' i$ K- F * 67 - AC Directional Overcurrent Relay
" \8 E9 a' e6 Z; J1 O- I+ M7 S * 68 - Blocking Relay
; M8 V/ a, m$ \% i) @$ e! m: m * 69 - Permissive Control Device4 v/ _- d+ R* M- {/ E3 F- P9 e3 w
* 71 - Level Switch
, L9 f: q O* m * 72 - DC Circuit Breaker6 A- [" l- }/ q% e( f( }
* 74 - Alarm Relay5 N) J2 k( ^/ ~
* 75 - Position Changing Mechanism
/ B0 J0 n7 P9 C0 s * 76 - DC Overcurrent Relay
: `/ z0 J6 S! W5 H+ m( j# @ * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
3 V8 X0 A8 T" `7 r7 B- I0 X * 79 - AC-Reclosing Relay8 Q# i- ~. g; G1 d; w
* 81 - Frequency Relay
6 }& Y. h: \' K. W8 C* B * 83 - Automatic Selective Control or Transfer Relay
" ~; I; n- d: C: A/ I' n9 x9 x% B * 84 - Operating Mechanism
1 e9 M0 W( ^" z" h * 85 - Carrier or Pilot-Wire Receiver Relay: U$ z D5 m. j- ?2 t/ d
* 86 - Lockout Relay; J; ^0 g: p1 b: J! C& \" ^
* 87 - Differential Protective Relay
. N4 q& Q) e/ q' m8 w * 89 - Line Switch
0 @8 Y- U( C& L2 c * 90 - Regulating Device5 S/ S. i1 J# [" T+ P# C
* 91 - Voltage Directional Relay* {6 L' q+ a, W
* 92 - Voltage and Power Directional Relay
4 H! D: B3 B' S4 d * 94 - Tripping or Trip-Free Relay3 j) w) }4 V6 j+ g1 d: N
* 95 - Reluctance Torque Synchrocheck0 O" ~& k w8 h6 t6 C6 r
* 96 - Autoloading Relay |
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