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List of Device Numbers
5 C0 P8 V. y% a2 s0 QClick to learn more...
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3 } R" u3 R5 I& G/ V% l# a: \! s& v * 1 - Master Element
; e3 y u3 @2 C) r- j! N * 2 - Time Delay Starting or Closing Relay) K9 |! n, Z7 {! m
* 3 - Checking or Interlocking Relay7 h8 [5 ^: p8 b# U0 v
* 4 - Master Contactor, e( ~: r# K4 p& P7 r0 l9 c* i1 A
* 5 - Stopping Device
2 G3 [, \& ?4 J * 6 - Starting Circuit Breaker
! D z+ H h' s * 7 - Anode Circuit Breaker/ p! k8 w# c. o5 P
* 8 - Control Power Disconnecting Device
3 i# f! N" n O, ? * 9 - Reversing Device/ m8 I$ _% ~# [5 O
* 10 - Unit Sequence Switch
3 ]5 I3 s$ I; K * 12 - Overspeed Device$ l t- N& b; T
* 13 - Synchronous-speed Device
" }( |4 A* R& `8 Y- J5 i& C6 p0 | * 14 - Underspeed Device% k' q- s: y ]
* 15 - Speed - or Frequency-Matching Device
/ P0 Y( S% z# y3 O9 Z6 F4 Y; a$ ^ * 21 - Distance Relay) p$ k9 O& N9 E9 }, l# |) u
* 23 - Temperature Control Device4 n |% o% D3 H8 T& X/ \
* 25 - Synchronizing or Synchronism-Check Device
, A* h0 P) ]8 s, u * 26 - Apparatus Thermal Device
$ \7 t1 |2 G( Z9 @; Q, J6 o$ l * 27 - Undervoltage Relay
# t0 ^+ \) J4 E& @: d; {3 m, q * 29 - Isolating Contactor
2 c E- ]. c. ~& n* K t* y * 30 - Annunciator Relay; {- c; ]) H2 g6 ?3 s: E
* 32 - Directional Power Relay; V2 j" P# z4 r( F
* 36 - Polarity or Polarizing Voltage Devices
8 d4 o' `; J3 Y1 w; P * 37 - Undercurrent or Underpower Relay
$ T8 ~# E% t( K" r1 l) c2 C * 38 - Bearing Protective Device
% g! M1 b! C& r9 L5 v1 ?: ] * 39 - Mechanical Conduction Monitor/ J$ W: G( o* f) `, {4 B
* 40 - Field Relay
$ F+ A" K/ a( o * 41 - Field Circuit Breaker, ?6 |$ B+ b& Y7 | k( `5 Q8 F, W: {
* 42 - Running Circuit Breaker
1 `1 J7 _$ d% q1 w2 e1 b * 43 - Manual Transfer or Selector Device
7 S' }/ |$ G4 l- P& g * 46 - Reverse-phase or Phase-Balance Relay: @+ \( m+ m" N) |$ ~
* 47 - Phase-Sequence Voltage Relay
5 a5 {, z; D3 g0 M * 48 - Incomplete-Sequence Relay& k; X+ G7 q! j0 ~" P) Z
* 49 - Machine or Transformer Thermal Relay
' u8 q0 f0 j! w * 50 - Instantaneous Overcurrent( J* B+ t0 [3 O
* 51 - AC Time Overcurrent Relay H* n8 v# A. s6 H1 J! J% E: C7 |
* 52 - AC Circuit Breaker% t, r% a& x8 }6 i+ F% T
* 53 - Exciter or DC Generator Relay
5 m* x0 D6 F) ~9 Q7 s! c N * 54 - High-Speed DC Circuit Breaker
7 g' {$ x: v. t; l7 z * 55 - Power Factor Relay
. a# q& i2 Y3 ~# \/ H! ` * 56 - Field Application Relay/ \# J% M# d8 d Q* [, R& G: b
* 59 - Overvoltage Relay
; V$ k, J7 q9 q" p4 h/ G1 ^) ~ * 60 - Voltage or Current Balance Relay
8 A& L% A: b1 J& N. D * 61 - Machine Split Phase Current Balance
* Y% \# L. o0 \5 z2 f3 i5 @ * 62 - Time-Delay Stopping or Opening Relay
7 L! r" ^+ Z; u" {. A% k8 t4 U * 63 - Pressure Switch
3 h5 u* t z+ A$ ]0 r* W1 ?6 W1 P! i * 64 - Ground Detector Relay
) I1 [& g9 N9 q5 M8 K: U( _ * 65 - Governor* a, F! v1 [% A7 _
* 66 - Starts per Hour
: _* q" v4 z2 f6 _ J * 67 - AC Directional Overcurrent Relay
+ W( m& N1 x, e8 Q7 W4 ^5 { * 68 - Blocking Relay7 F5 F9 J0 `8 B
* 69 - Permissive Control Device
6 e9 X0 y+ u* r, f * 71 - Level Switch2 x T8 D1 g8 j- O( }6 h
* 72 - DC Circuit Breaker
& |1 W/ Q# y8 b1 k- q9 y * 74 - Alarm Relay/ @0 I$ B3 ~8 F
* 75 - Position Changing Mechanism
0 a% F8 R4 d9 h0 ?7 ^ * 76 - DC Overcurrent Relay: s/ V% B" w5 C9 }- {7 j
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
+ }7 p$ V4 F- q3 E; Z2 E * 79 - AC-Reclosing Relay
$ H- Z2 p* B& V0 J' I3 b- `% H * 81 - Frequency Relay
: s1 m% {& q2 q: K * 83 - Automatic Selective Control or Transfer Relay
( H. D! N' ]' [. Q% I/ P" u1 h+ [1 B * 84 - Operating Mechanism7 u0 ~# H) U2 E( U; T L
* 85 - Carrier or Pilot-Wire Receiver Relay C! Y3 Q7 P; S
* 86 - Lockout Relay* z' ], q' Z. i1 J) P, H9 Y2 D2 E2 D
* 87 - Differential Protective Relay
% l& u5 X/ m( z% t * 89 - Line Switch3 u5 R- V4 J7 }) Q6 y+ P
* 90 - Regulating Device
) C9 @. @; y# \& F2 T# r) ?* ? * 91 - Voltage Directional Relay
2 h1 E& {. j4 g% p * 92 - Voltage and Power Directional Relay* G: T) r9 K8 J
* 94 - Tripping or Trip-Free Relay
2 J% f8 w5 }. D; M2 K" o' Z. G * 95 - Reluctance Torque Synchrocheck
6 L: E5 b" \( F# p" {5 {9 W * 96 - Autoloading Relay |
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