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List of Device Numbers
5 Z1 c; H$ { z9 K4 ?Click to learn more...7 H& t x/ Z0 r$ F+ I3 Q- D5 t
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* 1 - Master Element
- l0 m" }3 g1 D8 W1 ?9 n * 2 - Time Delay Starting or Closing Relay! ^7 H8 g% ]$ J8 ~( t& d
* 3 - Checking or Interlocking Relay, o- O" v& A, t( D
* 4 - Master Contactor* }" x: V1 @5 W V$ J
* 5 - Stopping Device3 L0 R( w* v; N4 B1 A D. B; b
* 6 - Starting Circuit Breaker
+ S! o: X4 c/ K/ |( B/ { * 7 - Anode Circuit Breaker
0 g, N5 X1 y. O5 O5 n# y* L; s * 8 - Control Power Disconnecting Device
1 \. w J1 L5 d- z* u * 9 - Reversing Device
( v' `+ u3 P& W: B( `' q * 10 - Unit Sequence Switch
# m: J* H* c; e% g8 u# T * 12 - Overspeed Device
h, @9 R8 g" J' }. A8 Q * 13 - Synchronous-speed Device
/ [# L3 q* h# ~: S- j4 d9 c* c * 14 - Underspeed Device f7 }! e" T- ^9 ~# ]" \
* 15 - Speed - or Frequency-Matching Device5 k# ]* O' R% K
* 21 - Distance Relay5 K3 H; E3 Q4 a% D
* 23 - Temperature Control Device/ Y3 x- A. j* O- @
* 25 - Synchronizing or Synchronism-Check Device
* ]: W# L, G9 w v8 x/ q * 26 - Apparatus Thermal Device* ^4 J$ D4 z0 C6 Y
* 27 - Undervoltage Relay7 B5 g* u, V* p% l* H
* 29 - Isolating Contactor1 O$ S. f; K1 B t q5 A+ N4 U* S
* 30 - Annunciator Relay
* b$ _. A+ u; m0 M. ^7 P6 B4 } * 32 - Directional Power Relay% D2 D$ C) c4 `* N) |. q2 t! D
* 36 - Polarity or Polarizing Voltage Devices4 b) {; S# G! d
* 37 - Undercurrent or Underpower Relay2 E A$ e( w2 K3 o
* 38 - Bearing Protective Device1 m; k* f' @: k& |0 Z9 A+ X) {
* 39 - Mechanical Conduction Monitor. [9 @' ?6 H0 O/ ?7 ]
* 40 - Field Relay
+ r9 M' ~; D$ k6 h0 L: ` | * 41 - Field Circuit Breaker1 ~; W& m" d! l9 N/ Y8 q
* 42 - Running Circuit Breaker
; h/ P( F7 s9 Z3 q- k * 43 - Manual Transfer or Selector Device* i) `, Z2 r' L C4 t& |
* 46 - Reverse-phase or Phase-Balance Relay; m% o, l$ a. l7 q
* 47 - Phase-Sequence Voltage Relay
; f3 [, G( k& b! i, j0 ^ * 48 - Incomplete-Sequence Relay
! _: {! b$ Q/ j% E4 G& X * 49 - Machine or Transformer Thermal Relay
8 d7 v: w: R3 d2 d9 T * 50 - Instantaneous Overcurrent: |% w: A; Y4 x6 u9 ?
* 51 - AC Time Overcurrent Relay& u" B; \6 v/ B+ V0 w! H) K \( A
* 52 - AC Circuit Breaker, Q& c# I& I1 L" Y# f+ ?
* 53 - Exciter or DC Generator Relay* L- y5 U! E. k' l( m9 V2 F
* 54 - High-Speed DC Circuit Breaker
; p2 e! T) |6 Q2 w * 55 - Power Factor Relay
8 U, T3 X' Q( w- F {5 z * 56 - Field Application Relay
& d8 D4 F. p% n: c9 i$ ~ * 59 - Overvoltage Relay
. d& s! G4 { i$ X4 H4 \ Q * 60 - Voltage or Current Balance Relay; O c0 F" A+ q) W6 ^
* 61 - Machine Split Phase Current Balance4 g! p/ P9 O _+ H
* 62 - Time-Delay Stopping or Opening Relay4 {* Z. ?9 N0 y3 F6 w! f* J
* 63 - Pressure Switch/ |3 m! `! ^, D* U# D
* 64 - Ground Detector Relay
" Z# m) s" f' Z. x4 ? * 65 - Governor
% q% j+ ^4 [+ A7 _ * 66 - Starts per Hour
3 n# G, h; @& D. c7 U2 x * 67 - AC Directional Overcurrent Relay: g; I8 S F9 @& L- ]: y$ D
* 68 - Blocking Relay
$ j/ h. j' w5 K( `/ Y * 69 - Permissive Control Device$ @% }2 f0 d8 N9 R
* 71 - Level Switch
. e+ I6 |9 I; s; O: T Q * 72 - DC Circuit Breaker7 B) g' r" ~! b( `8 ]* M
* 74 - Alarm Relay
) U, P! G, [! y( n6 @ * 75 - Position Changing Mechanism
, }* L( k# |7 G0 e2 D) N, i9 i: `9 p! j * 76 - DC Overcurrent Relay
' A! g4 e0 @( u$ U/ R! ] * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
% o o2 v1 e; @ u7 I * 79 - AC-Reclosing Relay9 P, S9 D; U3 a$ m, t
* 81 - Frequency Relay
" c& N, X# [& Y6 v8 k& J' Q * 83 - Automatic Selective Control or Transfer Relay. N6 z1 F# R$ x" P9 h! A
* 84 - Operating Mechanism
, |. x6 s( w1 `' w" M * 85 - Carrier or Pilot-Wire Receiver Relay6 ^6 `4 j5 r7 Q. e3 v
* 86 - Lockout Relay' X. g# p( z `6 _: S# N
* 87 - Differential Protective Relay
# ~* G8 s# }4 D# y2 D * 89 - Line Switch
5 Y h# P/ o" E% Z * 90 - Regulating Device
, }1 {/ b% T0 w2 O" U * 91 - Voltage Directional Relay! K1 l: i0 a' D! }( V! r3 J, b
* 92 - Voltage and Power Directional Relay2 W& v0 j5 H2 M/ A5 d D" e* w
* 94 - Tripping or Trip-Free Relay8 e1 P1 B5 D2 q! a$ t: Z
* 95 - Reluctance Torque Synchrocheck
8 \* h' h4 L7 z9 U7 S% ] * 96 - Autoloading Relay |
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