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List of Device Numbers
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' W: ^6 j% {( c4 \2 D% G; b3 _& a% R- v * 1 - Master Element0 G6 S) B- j$ c: R
* 2 - Time Delay Starting or Closing Relay
0 s. ~0 \. _& d2 _% X( ~3 ` * 3 - Checking or Interlocking Relay# S" d# b; ~ q3 @" W! b
* 4 - Master Contactor" W+ [$ m2 u1 Y2 ], z
* 5 - Stopping Device" ]7 U( y8 \" D$ o& @2 g5 Y
* 6 - Starting Circuit Breaker. \+ I. A+ v8 d! [: J1 r
* 7 - Anode Circuit Breaker' o. P, X3 u! a/ q$ s& h* M, _. [
* 8 - Control Power Disconnecting Device
+ E- T! O* m( C4 r1 l# y/ r( b * 9 - Reversing Device7 _0 t" w! e% n8 y- j. y; I% d
* 10 - Unit Sequence Switch
. L# C0 o6 }7 M4 x+ m8 [& a; g * 12 - Overspeed Device
0 H- q' l( }4 } * 13 - Synchronous-speed Device1 P7 M! ^) [* V3 a% F
* 14 - Underspeed Device0 U% R( @, q# b+ E$ M
* 15 - Speed - or Frequency-Matching Device, H0 J. C6 u( C( g7 d/ J
* 21 - Distance Relay8 O2 F! {; T2 C" K+ }* V/ K0 Y
* 23 - Temperature Control Device- j7 z W6 ]9 ]
* 25 - Synchronizing or Synchronism-Check Device9 X0 ~5 K* ^9 T9 A
* 26 - Apparatus Thermal Device
& l- T) f: P6 o& a. ? * 27 - Undervoltage Relay
. Z. H. Z. h+ b. K$ i0 ?, i * 29 - Isolating Contactor5 L# D7 f2 x! j% {* y( I$ R" O% M4 K
* 30 - Annunciator Relay
0 } y. W* ]) {- n * 32 - Directional Power Relay
6 o- V2 o5 @, ?5 @6 V8 N" v * 36 - Polarity or Polarizing Voltage Devices
4 {: h( N' H, m0 K; o, o$ G/ l * 37 - Undercurrent or Underpower Relay1 Z6 H* {+ Z- } P X6 Z( L, `/ P$ W
* 38 - Bearing Protective Device$ ~/ @$ A1 p5 M6 _) v7 t- f2 L, K
* 39 - Mechanical Conduction Monitor
9 E* l5 f% c. F3 V * 40 - Field Relay) o/ y: `/ w1 v1 C/ S1 j
* 41 - Field Circuit Breaker. p- |' L. }/ b
* 42 - Running Circuit Breaker
3 c1 f' {2 K) N * 43 - Manual Transfer or Selector Device# N) R! M' i) f& s
* 46 - Reverse-phase or Phase-Balance Relay
% z4 Z# i- T& l; M& v * 47 - Phase-Sequence Voltage Relay
% B* F, L8 S6 I6 o" J. K * 48 - Incomplete-Sequence Relay; I! r( }( w0 e% E7 F. X1 V
* 49 - Machine or Transformer Thermal Relay) X) F, J& j% R( {3 O4 o' T, |& I9 X: |
* 50 - Instantaneous Overcurrent
& A# `& i8 h; e0 @ * 51 - AC Time Overcurrent Relay
( A! {8 V& l2 ]" O% t * 52 - AC Circuit Breaker* o, R3 ], I8 ^8 l
* 53 - Exciter or DC Generator Relay% [% H) `4 g |( g# c
* 54 - High-Speed DC Circuit Breaker
# y$ G9 L, k8 j/ ^4 [ * 55 - Power Factor Relay3 Y/ D; _- l8 P+ A: y+ w$ V
* 56 - Field Application Relay
; H- k7 X; U; R * 59 - Overvoltage Relay
# o t3 \$ f: L1 Q% p* o4 p5 n * 60 - Voltage or Current Balance Relay# \7 @2 [& t0 S& {1 s* f
* 61 - Machine Split Phase Current Balance/ l g( ]# u4 C* x9 Z
* 62 - Time-Delay Stopping or Opening Relay
0 N, e7 a- ` _6 m) G: K/ ^1 ~% S * 63 - Pressure Switch
8 f- ]4 M/ k* O/ [, Z * 64 - Ground Detector Relay! ]+ `. e: |! @. I6 R- D" s6 m C
* 65 - Governor% l* @) B' a9 K- I' Y W8 b; g' w
* 66 - Starts per Hour5 M% ~3 `8 x, N% O) L; S4 J
* 67 - AC Directional Overcurrent Relay% {* {, g% A# E% W" l
* 68 - Blocking Relay
2 M9 b$ E4 d6 v" _1 F$ c* f * 69 - Permissive Control Device
( X# J0 ]( V+ ~# A5 e0 h * 71 - Level Switch
( _6 u+ p: u5 K! } * 72 - DC Circuit Breaker' ?3 r, q9 H7 r% N8 ~
* 74 - Alarm Relay
; t7 @! p- c% b7 T * 75 - Position Changing Mechanism; n9 H; [: S, X2 Q) U3 w
* 76 - DC Overcurrent Relay
# c' w# J/ i" K6 n! o! f5 S * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay7 D. Y' C' M" @- B
* 79 - AC-Reclosing Relay
: k0 B3 m2 t4 e1 \ U" X/ _ * 81 - Frequency Relay9 X+ H/ F" A' y! H" s/ X# Q" h
* 83 - Automatic Selective Control or Transfer Relay
" a4 U4 x {4 v! }8 ? * 84 - Operating Mechanism
1 P. q K; y2 a* C$ F+ H * 85 - Carrier or Pilot-Wire Receiver Relay y1 W& s- s) e I7 M( w: n' D
* 86 - Lockout Relay
/ z& p# N7 e# F * 87 - Differential Protective Relay
* t6 f7 I8 u V" a+ s7 ^ g * 89 - Line Switch$ e0 r: e) ~% d- h3 ^& m. G0 X
* 90 - Regulating Device
; v. o& Q# [" `3 l, S" `- J * 91 - Voltage Directional Relay, Z( h# B; a+ a" d
* 92 - Voltage and Power Directional Relay' W8 K! m* Q: t' F! G
* 94 - Tripping or Trip-Free Relay/ {2 U# N( u. F& z2 e6 w4 D$ z- o; T
* 95 - Reluctance Torque Synchrocheck
5 H/ l1 F+ I0 Z. L" I: { * 96 - Autoloading Relay |
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