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List of Device Numbers
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3 p" R. c) O$ v) c0 X4 g, G9 }( b6 S) Y6 P' N
* 1 - Master Element
( {' y* Y6 ^6 x/ _) c * 2 - Time Delay Starting or Closing Relay
; ~4 r# c- l; y" V/ E * 3 - Checking or Interlocking Relay
# n: v; s0 {; G8 n * 4 - Master Contactor
! T% ^+ o ~6 P( m" A2 N: [! ^1 _ * 5 - Stopping Device+ Y# c2 J) {# m$ j) K, _8 w
* 6 - Starting Circuit Breaker
0 E! O! Y* Y! d5 p3 _* X/ Z * 7 - Anode Circuit Breaker& N, `$ k0 X/ `3 T" B- ]
* 8 - Control Power Disconnecting Device
. [0 d# z6 o& j) ?& S * 9 - Reversing Device* x& \- j5 C5 P2 v
* 10 - Unit Sequence Switch
0 E+ z7 H' M7 P4 l * 12 - Overspeed Device
$ r8 f; \0 d7 X6 L4 ^! X * 13 - Synchronous-speed Device% O! `. g: u, d$ ?( b/ l
* 14 - Underspeed Device
4 X4 I* h Q8 M6 C* \ * 15 - Speed - or Frequency-Matching Device, N7 d! h6 r- e5 P8 x4 c5 w
* 21 - Distance Relay1 C5 {; n/ w$ J# R3 ?
* 23 - Temperature Control Device
7 ^$ q8 w0 {- g* m7 _ * 25 - Synchronizing or Synchronism-Check Device9 ]) O' I; K; Y* d4 _
* 26 - Apparatus Thermal Device
0 }. J) e& L" Z, v# X2 T * 27 - Undervoltage Relay
; e7 U1 I( D/ a- t' @: {5 L * 29 - Isolating Contactor1 z! `1 B. ?( i* N* p, b" z' O
* 30 - Annunciator Relay o4 T: M/ Z+ F$ b3 X4 ]+ y
* 32 - Directional Power Relay
3 d3 U8 J" J) d: a% J' j * 36 - Polarity or Polarizing Voltage Devices) a; _( r3 j: {! k% U
* 37 - Undercurrent or Underpower Relay
' F# h" m& x# g: a * 38 - Bearing Protective Device
% y7 M2 R9 W0 y6 ^& ^ * 39 - Mechanical Conduction Monitor
/ Q9 S9 q( e0 Z' q% p6 g c * 40 - Field Relay% p$ b* T: t: Y, d2 ^
* 41 - Field Circuit Breaker
- T4 L" u8 B! f/ W/ q * 42 - Running Circuit Breaker# C$ K J6 g6 q5 B
* 43 - Manual Transfer or Selector Device
6 x( y% G' }* W% g2 U- h * 46 - Reverse-phase or Phase-Balance Relay
$ b; ]0 O: o. G2 b% ` * 47 - Phase-Sequence Voltage Relay
* [( ^' Q2 `% i8 G * 48 - Incomplete-Sequence Relay" w% @+ W2 G' g! N
* 49 - Machine or Transformer Thermal Relay
$ x; X7 v3 c* Z* ~7 W: {! W * 50 - Instantaneous Overcurrent+ \! N" d" `4 [ b4 s8 g/ F( E
* 51 - AC Time Overcurrent Relay
% e; V; I: `- T9 q& s: M% A+ } * 52 - AC Circuit Breaker
6 s- k. a) `3 H8 h& c * 53 - Exciter or DC Generator Relay/ e* d O ^( Z) d. g/ Y& m n
* 54 - High-Speed DC Circuit Breaker- d. j9 L0 H* a9 ]
* 55 - Power Factor Relay
! F% t% l* D7 q2 G * 56 - Field Application Relay
! c% D- [, K+ y* S, { * 59 - Overvoltage Relay
( l8 ~( w4 J" C, v6 S' B* T6 L * 60 - Voltage or Current Balance Relay2 W( ?, n9 k5 ~' C" {8 r) }
* 61 - Machine Split Phase Current Balance& D: q5 y* [ L
* 62 - Time-Delay Stopping or Opening Relay4 n! T" G* a7 U
* 63 - Pressure Switch
7 r3 b+ w: E/ p9 s: g! R * 64 - Ground Detector Relay- B% @5 U% ]9 _8 o2 I; ]$ o
* 65 - Governor3 ~- }& C: N# |; U3 V
* 66 - Starts per Hour
9 L' \) J& ^6 x/ }. v3 }* R! r * 67 - AC Directional Overcurrent Relay+ q; T* O1 a5 k# J+ J4 ~
* 68 - Blocking Relay- p" f- D6 G1 o- `. l
* 69 - Permissive Control Device& J+ G6 S3 ]) f, x
* 71 - Level Switch0 \: Z, z3 H% {+ Z) `6 }
* 72 - DC Circuit Breaker
+ m$ l: C& n! u) @. U s; `6 F* _6 z% z * 74 - Alarm Relay; {0 S8 J( F" O( M
* 75 - Position Changing Mechanism
) g4 l) N/ y5 a: m" A * 76 - DC Overcurrent Relay
& ?. a, W! D( Z1 x/ }) Q4 K- a * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
9 B+ F% E( O. E9 X7 o * 79 - AC-Reclosing Relay3 L" [/ p$ p K, g9 f h5 M: [
* 81 - Frequency Relay4 X; |- `9 j+ z; x9 `! c" L9 [5 d+ j9 b
* 83 - Automatic Selective Control or Transfer Relay
2 A4 a# T' C6 O7 f1 L * 84 - Operating Mechanism
2 T3 t8 c, D! g; Q' \2 |/ f5 V * 85 - Carrier or Pilot-Wire Receiver Relay0 `6 f% r! ?9 J" }: Y, k7 b. j' G
* 86 - Lockout Relay
, H+ G2 P- K7 R6 n: \2 b! I * 87 - Differential Protective Relay
- F/ m# {: @7 Z- C * 89 - Line Switch+ d8 ]# K3 u- i/ F) X* C
* 90 - Regulating Device
) \9 T& \7 a% @: X5 {; F * 91 - Voltage Directional Relay$ h# G+ R( ]3 u7 n1 W6 }2 Q+ m8 s
* 92 - Voltage and Power Directional Relay
0 ~: B) ?. ~" u) V6 N * 94 - Tripping or Trip-Free Relay8 T; w5 g; v( ]5 m
* 95 - Reluctance Torque Synchrocheck
- r4 ]" d. ?' H& g: H( ]& B * 96 - Autoloading Relay |
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