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List of Device Numbers
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* 1 - Master Element
' q. J$ n0 I5 a# x * 2 - Time Delay Starting or Closing Relay
3 q! `+ ~/ r: ]' S * 3 - Checking or Interlocking Relay
" @* l, z9 S" E' G" Y5 a2 \+ e * 4 - Master Contactor
# Q6 n9 Z# {9 `5 a/ Q% i * 5 - Stopping Device
$ p8 K- x5 ?0 A* n5 f" o * 6 - Starting Circuit Breaker
$ B: C4 d9 ^9 S! \ o * 7 - Anode Circuit Breaker0 [' t) ?$ ]8 t
* 8 - Control Power Disconnecting Device7 A& X# m1 s% N+ O( G+ H+ u
* 9 - Reversing Device9 l! P% C# Z7 s3 S4 C3 e& r
* 10 - Unit Sequence Switch
/ P V9 m x6 X! ~9 l) @ * 12 - Overspeed Device
, A' `5 q( O" u7 L& k * 13 - Synchronous-speed Device% B6 Q5 @, E+ c# e' W! _
* 14 - Underspeed Device
2 o4 T5 E5 G/ ]* R4 V% D * 15 - Speed - or Frequency-Matching Device
* k# H# R6 l a. i; Q/ B$ ~ * 21 - Distance Relay
3 \8 K1 U; A; }. H6 V * 23 - Temperature Control Device( ?+ Q: {7 C, u; @( j
* 25 - Synchronizing or Synchronism-Check Device' X$ v! X( x& v1 i0 ]+ Z
* 26 - Apparatus Thermal Device
7 b( N6 |5 A% H * 27 - Undervoltage Relay
/ D7 U" A5 w+ A* f- y, X * 29 - Isolating Contactor
: ^3 F" F' O: k Q * 30 - Annunciator Relay$ Q3 ^/ Y& O% D( f& y1 O- Q& v
* 32 - Directional Power Relay& V6 n1 E8 _- l( C1 Y
* 36 - Polarity or Polarizing Voltage Devices
! w R+ s9 e/ j F0 ? * 37 - Undercurrent or Underpower Relay
* c# T6 ^* S* k) W" _/ y6 U. r, V * 38 - Bearing Protective Device
4 h }# |- y: m0 g9 c * 39 - Mechanical Conduction Monitor N- A# }# @, W% J9 s: s2 N
* 40 - Field Relay
2 }" C3 _* \: ^$ j! s& w * 41 - Field Circuit Breaker
; S W& k) U; E! }8 F A * 42 - Running Circuit Breaker, h" J; b ~3 M/ _8 {& n8 K: C, `
* 43 - Manual Transfer or Selector Device( b5 g3 D; q! D/ w' H! O" p
* 46 - Reverse-phase or Phase-Balance Relay5 f) l- @+ G, f3 s E& c. A* s
* 47 - Phase-Sequence Voltage Relay
# P8 m' Y: f1 J; }) Z * 48 - Incomplete-Sequence Relay
/ _& E! l2 T x. \/ r( p" ?" N( s6 i! m * 49 - Machine or Transformer Thermal Relay7 e. V" _6 l+ J, I. S6 o( u3 i
* 50 - Instantaneous Overcurrent9 V( J+ r: A- B, q
* 51 - AC Time Overcurrent Relay
0 ^% u9 O4 {; @: ?" p5 c0 D8 a: X * 52 - AC Circuit Breaker
- R; K% K( y( F' C$ b * 53 - Exciter or DC Generator Relay
( K0 d3 v/ q1 v+ ~7 X: n * 54 - High-Speed DC Circuit Breaker
$ V2 {& h8 @. a * 55 - Power Factor Relay3 I' T6 v0 g/ b+ s( R
* 56 - Field Application Relay
; l \7 S; Z9 Q3 I' }$ b+ y4 y+ ] * 59 - Overvoltage Relay
! I$ ^) c' H4 n( F8 d * 60 - Voltage or Current Balance Relay1 c* J& l+ q3 O: V
* 61 - Machine Split Phase Current Balance
, _& T& j4 E9 N) T$ u * 62 - Time-Delay Stopping or Opening Relay
$ b( L' o2 B6 x$ P3 W0 O ] * 63 - Pressure Switch& v z, [" }0 K2 i5 e% I
* 64 - Ground Detector Relay
5 |2 @8 U" [$ E$ W$ I * 65 - Governor3 p( e' ]2 G* I7 r. t
* 66 - Starts per Hour
0 y8 k, \$ @: b8 M* V! ] * 67 - AC Directional Overcurrent Relay* Y( |9 b$ H# { b) O( B+ t
* 68 - Blocking Relay
. E, \: D! r. H * 69 - Permissive Control Device, L8 L* w1 C4 A6 j4 ^! ?' P
* 71 - Level Switch; a! [/ U& D- p% g
* 72 - DC Circuit Breaker+ g/ H2 V' p. H' g' q" q! a2 V/ K
* 74 - Alarm Relay
) p) O0 z1 L. b9 P5 i * 75 - Position Changing Mechanism9 _, A8 ^* V' }
* 76 - DC Overcurrent Relay
6 l0 D% x( z. w9 Q3 B# X * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay7 ?0 a! N5 |$ }' D/ d
* 79 - AC-Reclosing Relay# ^3 N3 J: r+ W( g0 h% Z Y1 ?
* 81 - Frequency Relay
& q' u: x, q" k( y * 83 - Automatic Selective Control or Transfer Relay
& S; n l2 b0 m1 B( O * 84 - Operating Mechanism) t1 d4 @1 D: c( Y# A3 U
* 85 - Carrier or Pilot-Wire Receiver Relay7 S+ x$ m" U0 M& `
* 86 - Lockout Relay
( Q9 H/ w1 H; f9 J+ o/ I9 O) \ * 87 - Differential Protective Relay+ F6 b X0 ] w' p. k' t! u
* 89 - Line Switch- n0 ]) w* ^3 r! V2 S3 j: A
* 90 - Regulating Device% A+ F% Q, ^! j
* 91 - Voltage Directional Relay
/ H& X: Q; [* |1 b * 92 - Voltage and Power Directional Relay7 g7 t5 M) ?, D0 G3 C
* 94 - Tripping or Trip-Free Relay- |1 ]6 I- F0 t
* 95 - Reluctance Torque Synchrocheck2 e4 a9 @5 r( D( D/ [
* 96 - Autoloading Relay |
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