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List of Device Numbers
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/ Q" v( X# {" j" r- f * 1 - Master Element$ [; D5 I ?! T4 `2 i" ]
* 2 - Time Delay Starting or Closing Relay
0 Z5 `9 T* m, a+ Q * 3 - Checking or Interlocking Relay
" m+ u; j! e- b6 D7 {6 {+ u * 4 - Master Contactor9 I/ t6 U6 S- q2 Y1 t
* 5 - Stopping Device
/ Q8 O4 K% ?/ G! _" r * 6 - Starting Circuit Breaker) }, _9 u+ [* o7 f- w
* 7 - Anode Circuit Breaker- h6 H, E) l, u+ K$ U& f7 x
* 8 - Control Power Disconnecting Device
# ^" L- c$ E: ?0 ~4 H * 9 - Reversing Device( |( _- A0 u" S7 P8 K* f& H+ T
* 10 - Unit Sequence Switch: `% }; e2 d7 t/ f+ E
* 12 - Overspeed Device7 l& r8 z/ c! I9 K
* 13 - Synchronous-speed Device' Q; l2 k9 y8 K2 n; F% U
* 14 - Underspeed Device) e2 t( D U4 \6 f
* 15 - Speed - or Frequency-Matching Device
) y& s" Y' r" F * 21 - Distance Relay2 O% V7 e$ X' `
* 23 - Temperature Control Device. C. H. [3 }3 f5 L* l
* 25 - Synchronizing or Synchronism-Check Device8 C* B: g2 _$ P$ U0 {
* 26 - Apparatus Thermal Device
W4 T- k5 H7 r \ * 27 - Undervoltage Relay; i4 f$ @# ~- m8 j, M
* 29 - Isolating Contactor
- I5 b: |5 h6 ]' r$ X * 30 - Annunciator Relay# |1 o' r7 W) ~) Y, g
* 32 - Directional Power Relay
5 a7 }9 [. R- i- E * 36 - Polarity or Polarizing Voltage Devices
( B6 E$ \2 j$ a- G * 37 - Undercurrent or Underpower Relay/ e4 C. s6 X0 v( o$ h
* 38 - Bearing Protective Device# N0 X9 ?- J; o+ g% K2 L
* 39 - Mechanical Conduction Monitor
- n- M& j% X" y8 [; `, J * 40 - Field Relay" O- p, T4 l0 @# I
* 41 - Field Circuit Breaker" x! N3 k! z: ]7 x/ o
* 42 - Running Circuit Breaker
% B. i3 C5 M- T) c * 43 - Manual Transfer or Selector Device
" t1 }) V6 p) B. _4 M * 46 - Reverse-phase or Phase-Balance Relay6 o. B! u) j6 Z
* 47 - Phase-Sequence Voltage Relay
0 I- U i p( \/ Y * 48 - Incomplete-Sequence Relay# j& M) L- Z. j! g) S
* 49 - Machine or Transformer Thermal Relay, [) ~; ?( k0 _+ F7 _" B- d
* 50 - Instantaneous Overcurrent8 Y4 G8 T7 ]6 R6 {: F1 c/ O
* 51 - AC Time Overcurrent Relay X) y- b! n0 c* T3 N5 q9 w
* 52 - AC Circuit Breaker9 ]/ |" H9 b) H4 u& f
* 53 - Exciter or DC Generator Relay
2 m+ `5 y2 V& g+ J * 54 - High-Speed DC Circuit Breaker( ^# l, {0 _. X! Y2 E
* 55 - Power Factor Relay! J% J( ^% ~/ Q7 X9 G+ E
* 56 - Field Application Relay
" k5 Q. V5 t0 G& K, I. F * 59 - Overvoltage Relay, a9 w% A5 O7 x7 u& j& h
* 60 - Voltage or Current Balance Relay: _( E3 |$ v% {/ F1 F
* 61 - Machine Split Phase Current Balance
8 Y2 V; P: y8 J( J* S8 A * 62 - Time-Delay Stopping or Opening Relay
/ d7 Y: ]% N1 U) Q1 y * 63 - Pressure Switch; L5 i5 P# ^# A/ R, f! X
* 64 - Ground Detector Relay
Y( l) Q/ Z/ F |2 r * 65 - Governor
1 T. c2 J& T4 }+ Q' b* o+ k * 66 - Starts per Hour" S' f% r1 L& j
* 67 - AC Directional Overcurrent Relay
( l/ p6 u. U$ w0 P k2 P% K * 68 - Blocking Relay0 g( n# W5 A F: a
* 69 - Permissive Control Device
* e% \7 _( s; O, |+ X * 71 - Level Switch
* z$ @0 [7 Q E. _) k1 s7 }3 E * 72 - DC Circuit Breaker7 l U3 ~$ Z6 \' H
* 74 - Alarm Relay$ r1 ~, J# E4 u3 L5 I
* 75 - Position Changing Mechanism
" Y5 E$ k9 ]& K. }1 _7 K f * 76 - DC Overcurrent Relay1 ? b" b/ u) D
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
; G( L5 E- W5 p * 79 - AC-Reclosing Relay
8 K8 Y2 J& F! w3 C! q0 {/ t6 } * 81 - Frequency Relay9 O9 n$ _. Z! q# V7 A7 }/ R# b( T$ h# {
* 83 - Automatic Selective Control or Transfer Relay! b$ v$ O; C6 U7 j0 C& B6 P
* 84 - Operating Mechanism4 x/ E# o3 D7 r" |/ S
* 85 - Carrier or Pilot-Wire Receiver Relay3 Z% R0 B" R$ C
* 86 - Lockout Relay+ s5 A, V) J5 D1 Q; A% ]. m
* 87 - Differential Protective Relay
1 \9 I+ v# i7 ^7 }' A* p3 J * 89 - Line Switch) B6 a i9 F1 O$ C/ Z0 J' S! W
* 90 - Regulating Device
+ I' _4 h+ ?( }, { * 91 - Voltage Directional Relay C* {, w: ^; w ^$ K' I, B
* 92 - Voltage and Power Directional Relay! ^; w3 n2 v0 i7 y
* 94 - Tripping or Trip-Free Relay( ]8 o! b" U& g
* 95 - Reluctance Torque Synchrocheck. \4 Y4 r( [+ y
* 96 - Autoloading Relay |
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