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List of Device Numbers2 T2 N! z+ |: U' ^# x
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- g4 [; u4 q4 w) o$ A * 1 - Master Element7 L: |- }2 N A! ~5 T e* j- ]) m
* 2 - Time Delay Starting or Closing Relay
! r) u4 P1 K- z5 f4 F; ~$ H * 3 - Checking or Interlocking Relay6 P4 [( ^ I( j9 Z. ]. I, o; Q
* 4 - Master Contactor
! i/ I+ z& _7 f2 ?& e) T' s% l * 5 - Stopping Device
/ O, n6 w3 m$ P! y( s * 6 - Starting Circuit Breaker
7 H: N R; A3 c: m: a * 7 - Anode Circuit Breaker
' Y5 Y/ M# U6 p) }. G * 8 - Control Power Disconnecting Device
q9 N# V! r' \" B, H7 \1 V * 9 - Reversing Device/ Y8 n, f: ?7 W; _
* 10 - Unit Sequence Switch4 N( v2 p$ V1 H- [
* 12 - Overspeed Device7 K: ^& I( ?: T" r# h$ \) b
* 13 - Synchronous-speed Device
$ Y$ w7 D2 J1 K A * 14 - Underspeed Device
% Q- y4 b4 r( H/ F * 15 - Speed - or Frequency-Matching Device" o% m% X1 Q8 T
* 21 - Distance Relay# ~, j& w$ P; L2 X
* 23 - Temperature Control Device5 U% E/ e' N' `" T2 {
* 25 - Synchronizing or Synchronism-Check Device
. s* U6 n' l2 `3 U( t, x5 M. @8 ` * 26 - Apparatus Thermal Device' m! ? o5 x5 `2 i- Y8 T8 U' V
* 27 - Undervoltage Relay
; q) e* `7 e+ N+ ]. @$ \ * 29 - Isolating Contactor" Z: Y9 B0 {+ N( V
* 30 - Annunciator Relay7 [* u3 W, y9 ~7 Y2 r8 m. j
* 32 - Directional Power Relay
7 W& Z& q# r" t8 w( X, v3 A/ c * 36 - Polarity or Polarizing Voltage Devices9 U2 ^$ \+ Z2 b0 N8 a7 S: ~4 C
* 37 - Undercurrent or Underpower Relay
' u. l. H6 B2 x2 @5 T V! ? * 38 - Bearing Protective Device
z+ b+ P. O( ]4 ^ _ * 39 - Mechanical Conduction Monitor5 b) j- F+ g3 R8 B& m Y
* 40 - Field Relay& b; Y7 i5 w$ L8 r$ J K; m
* 41 - Field Circuit Breaker
$ q7 F0 t* b/ S+ \ * 42 - Running Circuit Breaker
- i' O4 m4 `! @) y; ^/ n* u * 43 - Manual Transfer or Selector Device9 O u% R* `- R) r' ^1 N! J
* 46 - Reverse-phase or Phase-Balance Relay
$ G3 H) F5 B. Q4 N# F x6 A0 D * 47 - Phase-Sequence Voltage Relay) b7 Q6 d/ j$ U9 C% s. m- k
* 48 - Incomplete-Sequence Relay3 W. R9 c% a8 J/ e# ~/ b$ j" Z
* 49 - Machine or Transformer Thermal Relay
5 A$ O' ]* ~4 E& A7 x j# M. ^ * 50 - Instantaneous Overcurrent
' [- G: D; z& R5 N * 51 - AC Time Overcurrent Relay
, U$ v+ T0 }2 J3 }! ]- x# R$ J9 U V * 52 - AC Circuit Breaker) Y! k6 r! y, l1 ^1 l* i [7 L
* 53 - Exciter or DC Generator Relay1 a8 p. ^- X0 W# l
* 54 - High-Speed DC Circuit Breaker
# n T. u8 Z9 s8 B9 g * 55 - Power Factor Relay
0 H, _: F u( C$ E * 56 - Field Application Relay
. g! f5 b/ l+ s7 t* J) Z; `6 F& K1 f5 h * 59 - Overvoltage Relay# t P: K' C. F
* 60 - Voltage or Current Balance Relay, v/ u# L1 @! E7 I3 w) u' {/ k8 _# X
* 61 - Machine Split Phase Current Balance& e8 E, d; o) f$ z
* 62 - Time-Delay Stopping or Opening Relay- D0 m9 B# T4 g
* 63 - Pressure Switch
3 [' t& U2 ^3 Q3 w( B$ l6 w * 64 - Ground Detector Relay
- W# v7 c. ? O: t2 [ * 65 - Governor& ~* P' r7 W' Q4 b1 C& {
* 66 - Starts per Hour
/ X/ N7 ^1 i5 | w8 C) l( ]. P0 o * 67 - AC Directional Overcurrent Relay9 u; @3 T& X+ ?; `0 l9 ?
* 68 - Blocking Relay; a6 j/ b. N a% F
* 69 - Permissive Control Device
) o. t+ M6 s2 J9 | * 71 - Level Switch
4 s ~/ `$ C7 x, e8 v * 72 - DC Circuit Breaker6 K" T, ?& S" K# E* s0 V' m# z# A
* 74 - Alarm Relay
1 p- |% K# I+ o" ~. }7 P. W6 b0 Q * 75 - Position Changing Mechanism! U$ X2 w! x' ]
* 76 - DC Overcurrent Relay5 ^6 {4 b+ e" h! ]' z1 g0 I- c
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
8 z& T3 H W: d5 j4 x * 79 - AC-Reclosing Relay
1 q" a+ Y8 o' ?9 M( Y * 81 - Frequency Relay
, m4 [7 X% Y: X6 ?$ t * 83 - Automatic Selective Control or Transfer Relay
) S+ q4 C; p0 Z# b. E+ B+ R * 84 - Operating Mechanism
( ~( b: j; i+ t4 @ * 85 - Carrier or Pilot-Wire Receiver Relay
, _, w' w+ C( L% k$ a2 V# {3 T * 86 - Lockout Relay9 X* L5 W( G. M7 R
* 87 - Differential Protective Relay) k7 C0 X' X4 I8 q
* 89 - Line Switch9 A0 |6 s6 j, J' {
* 90 - Regulating Device
) e% A/ i& N* A' X1 F" t9 n* G * 91 - Voltage Directional Relay1 j ^0 L6 T1 l2 v9 I
* 92 - Voltage and Power Directional Relay
8 s* m# o; X- N+ k3 L2 } * 94 - Tripping or Trip-Free Relay. W/ ^# l& {) D4 b% y/ C9 {
* 95 - Reluctance Torque Synchrocheck& Q8 `, ^8 ?3 ], k( u. {
* 96 - Autoloading Relay |
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