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List of Device Numbers! W4 p* V1 g' e5 _9 j( ?. _1 x% C
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; s, Q; C" \( C6 b" s * 1 - Master Element
, {3 f1 C8 ~! i2 u * 2 - Time Delay Starting or Closing Relay U+ b+ [% q; O/ h
* 3 - Checking or Interlocking Relay- P. t! x( D2 F+ M6 k8 S" a; m
* 4 - Master Contactor& `0 _4 v, R2 C' T7 k* e+ r1 D! E
* 5 - Stopping Device4 ~' a4 D: P. m q4 X+ Z' I
* 6 - Starting Circuit Breaker4 ?/ F4 u6 U; D8 o, a. R
* 7 - Anode Circuit Breaker8 S0 |7 z0 k& M) P' |
* 8 - Control Power Disconnecting Device1 F/ W t8 d; \- G) A/ b: C# D
* 9 - Reversing Device
) |7 R( Z' h, ~ * 10 - Unit Sequence Switch/ p& N. @3 ?: C8 J
* 12 - Overspeed Device& r. A4 j/ W; P" c5 h; x5 l
* 13 - Synchronous-speed Device( H5 N% t. `+ D( g; Z
* 14 - Underspeed Device+ G* A+ O- s |9 Q) { d3 F
* 15 - Speed - or Frequency-Matching Device
. l' i5 O0 g$ T$ f( D * 21 - Distance Relay
% e" \9 A3 B' {4 W8 W5 ^ * 23 - Temperature Control Device9 @9 v S1 q' c5 j' Z; J. x0 j
* 25 - Synchronizing or Synchronism-Check Device
6 ?" w; c* f0 a, |. s * 26 - Apparatus Thermal Device' d0 Q! s$ B2 e6 R; h3 ^; M9 B* ~
* 27 - Undervoltage Relay; u L' n" n% x5 b- u
* 29 - Isolating Contactor
: s# k- P- I: }- E/ l * 30 - Annunciator Relay
7 u l. X- U7 g# e& P; F * 32 - Directional Power Relay# i) n& ?; Y }3 e+ T* g% w
* 36 - Polarity or Polarizing Voltage Devices
3 l0 g) V; k* J' l" Q * 37 - Undercurrent or Underpower Relay( R1 f4 l ?7 @. e: w9 L( I
* 38 - Bearing Protective Device
7 o' N1 C" x1 [+ u6 P8 A4 b * 39 - Mechanical Conduction Monitor
1 U" c6 y% ~) t3 Y s * 40 - Field Relay( O( u* u, F v; f i1 ~
* 41 - Field Circuit Breaker+ L8 c) F# r. G0 |, l8 _, ~
* 42 - Running Circuit Breaker
1 Y4 Q5 D+ P, o. W5 y+ j) S5 O * 43 - Manual Transfer or Selector Device
. O- h; }6 R' S% J * 46 - Reverse-phase or Phase-Balance Relay
; u" i- Q* B4 b& R3 O: K * 47 - Phase-Sequence Voltage Relay
k+ \! x3 q$ O) ~( T v' Y * 48 - Incomplete-Sequence Relay
+ x' b- M$ l6 s. }( {0 ~: y * 49 - Machine or Transformer Thermal Relay0 N5 x9 {: {+ E7 p* g0 m0 B2 D' M$ e
* 50 - Instantaneous Overcurrent
! |- ?+ h+ F2 ~8 ~6 o* ]5 A7 o" B * 51 - AC Time Overcurrent Relay
8 U7 V8 R4 e1 T5 l [1 a * 52 - AC Circuit Breaker
0 `' {- n! B1 A+ } * 53 - Exciter or DC Generator Relay
, b9 `' R, y3 k5 V0 A+ B! J; I' x * 54 - High-Speed DC Circuit Breaker
5 L9 ]$ Q2 H# N% o, w3 r * 55 - Power Factor Relay/ T- q# v( |, J/ Q. }
* 56 - Field Application Relay
: \$ E/ I D e: }) e * 59 - Overvoltage Relay/ p: |7 {* x& u6 u
* 60 - Voltage or Current Balance Relay
8 D$ m/ h" R( b6 U$ a; h * 61 - Machine Split Phase Current Balance3 f6 n! A9 n$ R$ b: a* e' L8 k
* 62 - Time-Delay Stopping or Opening Relay4 O, B; g Q4 o) \
* 63 - Pressure Switch6 a4 ^# n3 t9 p6 S# k* X2 n5 X6 x
* 64 - Ground Detector Relay
5 {' J/ A9 V+ G6 o" W' Q * 65 - Governor; Y3 x# _% D4 i9 W
* 66 - Starts per Hour
2 ~3 |6 v6 X6 S2 f! R * 67 - AC Directional Overcurrent Relay
4 f5 }# d+ X/ E2 G v" X# C. q * 68 - Blocking Relay. Y6 I; @# g& i7 R5 v
* 69 - Permissive Control Device8 u4 C3 D" e, Y2 R
* 71 - Level Switch( |8 u; L# R1 p# a) D) m# }
* 72 - DC Circuit Breaker
/ ~* f% V( R; \7 Q$ q( \" r1 Q+ d" o * 74 - Alarm Relay8 o" _0 i( K- K2 S# I$ |. a
* 75 - Position Changing Mechanism
1 V8 t- V3 _3 w% m * 76 - DC Overcurrent Relay
' O+ g0 o T3 ^# O2 x9 j3 n * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay/ M& M4 b' |1 o7 h3 h7 ^
* 79 - AC-Reclosing Relay
! v w! P7 h& x$ V * 81 - Frequency Relay& w% U( f" K) \. b! V- f
* 83 - Automatic Selective Control or Transfer Relay w# E3 R# I% W, F$ F. M
* 84 - Operating Mechanism
4 [. P* H, O e e. W+ T; j. V * 85 - Carrier or Pilot-Wire Receiver Relay7 b, c: s$ e! W
* 86 - Lockout Relay" v- [' y8 K! R% K$ h0 c, Z! Y
* 87 - Differential Protective Relay9 {* G C3 _: i6 s7 |) l7 r4 I
* 89 - Line Switch
% [$ F D0 w, C5 j. _9 m" q * 90 - Regulating Device5 e4 ^; Z7 {2 A5 z' B
* 91 - Voltage Directional Relay. ^. S- t, S' l, K/ b" [/ T
* 92 - Voltage and Power Directional Relay
& Q& l- @$ {% _6 k( ^3 E: z" k3 r * 94 - Tripping or Trip-Free Relay
$ q$ h4 d0 _2 T; u8 [ * 95 - Reluctance Torque Synchrocheck. s2 L# R/ t0 ]! | I6 L( y
* 96 - Autoloading Relay |
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