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List of Device Numbers/ b& }" E# r, L( R& \+ p0 v
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* 1 - Master Element
8 C8 J5 B% |9 d" t" k' t * 2 - Time Delay Starting or Closing Relay3 @% C9 `* Y4 c& u
* 3 - Checking or Interlocking Relay
1 X8 C5 m# D% g' N/ } * 4 - Master Contactor+ E) [$ a# z, F( Q
* 5 - Stopping Device$ ~ Z# l9 y9 R7 L' A4 Z
* 6 - Starting Circuit Breaker
% y9 t- s7 U# [ * 7 - Anode Circuit Breaker
4 G3 w; `; @/ J& G5 j8 c3 n * 8 - Control Power Disconnecting Device! {; f" H# T5 i. @% e3 f* M" P
* 9 - Reversing Device5 p5 v1 \& x4 {4 w* ]
* 10 - Unit Sequence Switch
) Y, a; D* }! P) A: ~ * 12 - Overspeed Device- K% Z- j# S6 l
* 13 - Synchronous-speed Device1 k" C9 a0 ~' v
* 14 - Underspeed Device( _" i% J1 D$ b# @2 Y0 p) ~- [
* 15 - Speed - or Frequency-Matching Device4 V7 e/ {- l, K" q! Y/ p
* 21 - Distance Relay
9 ]7 y# w; b5 ]+ q6 p8 v * 23 - Temperature Control Device
5 r# C& ~$ F9 }) V; [, b0 Y * 25 - Synchronizing or Synchronism-Check Device
, Y- `; C# |0 v9 T' ?# o; _# T * 26 - Apparatus Thermal Device
5 ~# A- B' p. O. M * 27 - Undervoltage Relay! }' y5 ]( o; h) ~8 t
* 29 - Isolating Contactor) `7 L6 a; p5 @3 I& Y- ^1 K. o. M
* 30 - Annunciator Relay+ P& \% f' w: [7 O4 u; |6 B
* 32 - Directional Power Relay. P, `& {: S/ _: P' o
* 36 - Polarity or Polarizing Voltage Devices
+ q* Q# o6 u. A7 A * 37 - Undercurrent or Underpower Relay
( v. O! G# E' U) v5 t/ v; S * 38 - Bearing Protective Device
* I; ]& U3 _3 U7 m. ?; V1 {9 l7 b7 S( p * 39 - Mechanical Conduction Monitor
' }1 c1 \' w& Q; V( H * 40 - Field Relay7 @! g6 h K$ u, z$ A1 n3 A2 r
* 41 - Field Circuit Breaker) L3 }) |2 b9 U: ^/ z$ v
* 42 - Running Circuit Breaker
+ ~% ]4 B/ ?4 Q( c2 v# l2 g$ m& x * 43 - Manual Transfer or Selector Device
( B J9 L& D* \4 Q1 V * 46 - Reverse-phase or Phase-Balance Relay
) m6 [, K& @% z: ] * 47 - Phase-Sequence Voltage Relay0 {# B$ ~2 T0 K
* 48 - Incomplete-Sequence Relay1 @; M: \8 k" |( I5 ~& m/ x, |
* 49 - Machine or Transformer Thermal Relay+ d2 a" R# R. G4 v
* 50 - Instantaneous Overcurrent
7 m! m, l% j! r: K5 l+ ? * 51 - AC Time Overcurrent Relay$ p' U" N% g/ ]* i7 {% B1 y* H9 X
* 52 - AC Circuit Breaker
/ |0 o" j. Z7 y" I, d * 53 - Exciter or DC Generator Relay
6 F0 T6 ^$ D/ d+ R5 q( C( ?5 I * 54 - High-Speed DC Circuit Breaker
) j7 m, d v( H3 {& n * 55 - Power Factor Relay
. w* W3 ?: i" k8 m. I * 56 - Field Application Relay
/ n. C3 }) y) z7 @ * 59 - Overvoltage Relay5 I L! s6 U9 A( I9 u7 e
* 60 - Voltage or Current Balance Relay
4 W3 \ t) A8 q4 d( z * 61 - Machine Split Phase Current Balance# r9 m8 h4 ?" H9 r1 m
* 62 - Time-Delay Stopping or Opening Relay
" }/ M6 K4 B7 H1 e * 63 - Pressure Switch- [1 m: G- d5 p/ h% w- J* d2 o
* 64 - Ground Detector Relay
! i2 ]( Y5 y- _& j: h * 65 - Governor5 U, m$ ^' N: r9 i' ^" n
* 66 - Starts per Hour
' I9 _) C# W: s. I: z! R% j8 Q * 67 - AC Directional Overcurrent Relay( Q1 k( O9 Z9 D+ U1 K0 o
* 68 - Blocking Relay
" m: d+ K% V! X0 i * 69 - Permissive Control Device
, T% C; d: x m/ R) q * 71 - Level Switch3 G' p- l1 w' F
* 72 - DC Circuit Breaker
1 H& t4 _, }, D6 U6 ` * 74 - Alarm Relay, t7 U. Q: K6 c/ i, N& y( Z f. s# [7 B
* 75 - Position Changing Mechanism0 V' M7 d; G7 _3 f; F( ]6 N9 B9 d
* 76 - DC Overcurrent Relay
! T6 x& \8 N* d f. C* y8 ]9 d* ] * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
( O9 G& s; E2 O7 H7 x. Y * 79 - AC-Reclosing Relay1 y( ]- k- j* O" G+ q! i) Z! E1 T
* 81 - Frequency Relay. |* F, D. h" g( j( y, l
* 83 - Automatic Selective Control or Transfer Relay* Y7 G1 w0 G3 B5 c5 g1 m- z: f" y
* 84 - Operating Mechanism
# Y2 m. g: M! d9 V& G/ c' P * 85 - Carrier or Pilot-Wire Receiver Relay5 K, D5 a! h1 \) {$ c
* 86 - Lockout Relay
: d/ y& |" x4 G, u * 87 - Differential Protective Relay6 q8 m U1 e6 `; n5 ^6 b( A4 H: [
* 89 - Line Switch* Q6 c% n7 v" @: P( N, _3 f6 n
* 90 - Regulating Device
n% e1 g6 {; F5 d2 Q8 \* ?8 Z * 91 - Voltage Directional Relay! b% y; W& G0 g: a- h
* 92 - Voltage and Power Directional Relay0 A' d' ]5 f1 {- s/ i& m
* 94 - Tripping or Trip-Free Relay* n; V- q3 i' g v- P$ ^" E' S- }" ]
* 95 - Reluctance Torque Synchrocheck. J" g* O2 X6 p! ^8 C* C
* 96 - Autoloading Relay |
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