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List of Device Numbers; e; H( V4 d1 g0 b
Click to learn more..., X& ~6 E! J7 y3 v* X8 n
1 E% I: y* H, ?. v) \ * 1 - Master Element
' b: d& d1 t" O) M; a2 e * 2 - Time Delay Starting or Closing Relay# B; Z e' ?- l9 G5 M6 z
* 3 - Checking or Interlocking Relay
, c0 T$ l+ r; C% U/ T8 n7 B * 4 - Master Contactor L B) J! i- M# I& w$ t
* 5 - Stopping Device
5 {7 j' f# P3 v) B: Q, ~ * 6 - Starting Circuit Breaker. r5 a, g; j: _) U/ N
* 7 - Anode Circuit Breaker7 k- G: z7 l: t% L
* 8 - Control Power Disconnecting Device4 T2 P# s7 v9 j3 k; e( T0 l- ~/ c
* 9 - Reversing Device4 [- Y5 b/ x) A7 s& a+ X. q
* 10 - Unit Sequence Switch7 G' s% C. e1 w5 J% O$ \2 t5 \
* 12 - Overspeed Device
; o# b* w3 ~ Y* t/ G3 c# I * 13 - Synchronous-speed Device( K- @* S% u# ~; I3 q" o& {6 ^* N
* 14 - Underspeed Device
; U% u* D d* l0 ?6 X * 15 - Speed - or Frequency-Matching Device$ ]+ G1 B% l" y, Y, ]# [# Q
* 21 - Distance Relay
D+ X- p+ p6 [( @8 K$ A * 23 - Temperature Control Device" \" n' g; o" @: v+ E
* 25 - Synchronizing or Synchronism-Check Device
# n9 P) W8 X! d8 T( Z# ` * 26 - Apparatus Thermal Device
& W+ {; V( w, E! C) X& Z * 27 - Undervoltage Relay7 |+ H# a3 ~, R& A5 r3 F3 w
* 29 - Isolating Contactor
3 r9 X0 ^8 i* x3 y- m' X * 30 - Annunciator Relay
N1 n% T: `4 T- _ * 32 - Directional Power Relay
8 g9 `8 u. k/ O3 x( U9 x0 }5 w4 q * 36 - Polarity or Polarizing Voltage Devices
1 k- U* M- o# e( n% M! B% f4 s( F5 T * 37 - Undercurrent or Underpower Relay5 c) L5 J, D2 V. Q% N
* 38 - Bearing Protective Device
9 j" y: Z5 Y+ i, ?, v+ o7 o * 39 - Mechanical Conduction Monitor6 z; n. |% D+ Q7 @# M8 A. v! }/ s6 P
* 40 - Field Relay! l+ p: Z9 L) `' z: y6 l
* 41 - Field Circuit Breaker S5 i; D7 A3 `8 a$ |) s$ { d
* 42 - Running Circuit Breaker
, f# r$ g& U0 Y6 i* C * 43 - Manual Transfer or Selector Device
$ R( e; g: i! c$ g/ I * 46 - Reverse-phase or Phase-Balance Relay
; l. L; P" d* [/ ^ * 47 - Phase-Sequence Voltage Relay$ W0 o0 K7 F! }+ h4 n' v ^9 ~
* 48 - Incomplete-Sequence Relay
2 J" {# @6 C; j4 \ * 49 - Machine or Transformer Thermal Relay* B' K7 S, f& |0 M' c% y$ U
* 50 - Instantaneous Overcurrent8 w X" b9 _. [
* 51 - AC Time Overcurrent Relay
+ j8 S0 k6 W) m) y * 52 - AC Circuit Breaker
8 K8 J6 U3 G" W * 53 - Exciter or DC Generator Relay A" _& P! J. ^* o; }4 q
* 54 - High-Speed DC Circuit Breaker3 `5 P: f. r2 a8 h; \! L' g
* 55 - Power Factor Relay A: Q7 S+ y& E2 g& F$ A+ O+ Z
* 56 - Field Application Relay* w8 ^% L+ ^2 ~/ I
* 59 - Overvoltage Relay
) R( B3 U" J5 A" m4 |$ o: n- ~ * 60 - Voltage or Current Balance Relay, V3 m; T3 M8 L9 }# K! d
* 61 - Machine Split Phase Current Balance
9 X+ V2 Q# i* w% A4 o& y * 62 - Time-Delay Stopping or Opening Relay' T2 y' A! c. a6 y, e) {4 Q
* 63 - Pressure Switch' A$ a/ a: P# E1 ^
* 64 - Ground Detector Relay9 b' q) Y4 T$ n& n; j( x. J
* 65 - Governor2 g' G1 J- T! _; W4 y
* 66 - Starts per Hour1 b6 t$ v9 N4 x4 x* p
* 67 - AC Directional Overcurrent Relay3 {- W7 ~7 ^8 T) f7 H
* 68 - Blocking Relay' g4 e5 U p( I2 K
* 69 - Permissive Control Device
( f* E; y6 I1 o: H( A: b2 j * 71 - Level Switch9 P* r( A9 E1 Q5 ~
* 72 - DC Circuit Breaker
! }' v. a# _! ~' |$ B) p * 74 - Alarm Relay
* w1 D$ w k* S9 C7 C- S2 y * 75 - Position Changing Mechanism
! R/ N' C+ y' k7 s& p# r+ Z& o2 e * 76 - DC Overcurrent Relay
, O% }& }! C$ w# W. { * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
+ o! R: E% r: [3 ]; ^ * 79 - AC-Reclosing Relay
# ]/ v; E: P- ]7 Z; X * 81 - Frequency Relay
$ Q6 k3 Q7 U8 l1 s6 W * 83 - Automatic Selective Control or Transfer Relay
# e' q I) p: @ * 84 - Operating Mechanism
j: U( \2 l$ ?" I& w% { * 85 - Carrier or Pilot-Wire Receiver Relay, t) M. r: p2 ]/ p2 P4 a7 m
* 86 - Lockout Relay4 j1 s4 X3 M1 [( N7 A0 Y! ^
* 87 - Differential Protective Relay
+ w+ \4 M. Y9 A, j( F6 E* X' E4 @ * 89 - Line Switch: a: A. S/ X' S3 [- Z* L: A
* 90 - Regulating Device
* L- ?' W" d5 p' V1 [3 ]" r5 T2 W * 91 - Voltage Directional Relay
$ y2 Q* B4 |6 c! {0 u; v& R * 92 - Voltage and Power Directional Relay6 E, D) e; d% o8 |8 N; v3 V
* 94 - Tripping or Trip-Free Relay
. `9 a* C7 R* p# Q * 95 - Reluctance Torque Synchrocheck: M9 T* z* _8 j$ _7 ~
* 96 - Autoloading Relay |
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