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List of Device Numbers, x- V' W% E; s! G; n& B3 t
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* 1 - Master Element- |4 \9 r* {; \$ [4 F
* 2 - Time Delay Starting or Closing Relay7 ?& o6 M) A4 z& @ D# n7 }
* 3 - Checking or Interlocking Relay
7 ~! Y7 c4 ~2 \3 ^& p4 B7 s * 4 - Master Contactor+ G$ W: X: p- G) W8 A
* 5 - Stopping Device
% g4 u* W3 H v! W/ J |! L- Y4 s * 6 - Starting Circuit Breaker
8 A# `0 r) ]4 q* s * 7 - Anode Circuit Breaker, K9 I5 K: ]& F8 ]5 z" s
* 8 - Control Power Disconnecting Device
$ v& z$ d9 u8 O) J& | y6 d * 9 - Reversing Device
0 t5 [: V) e7 a * 10 - Unit Sequence Switch& {) L* T/ \# j, f9 W; I2 N
* 12 - Overspeed Device
1 J* M% o+ D0 b6 e, n4 r. T7 |$ Y1 E: t * 13 - Synchronous-speed Device$ ?3 x+ E( d. d' O$ G6 j+ W9 U
* 14 - Underspeed Device6 C$ r6 p4 C5 F4 r
* 15 - Speed - or Frequency-Matching Device
6 E. q" [1 I3 [! d * 21 - Distance Relay
) z3 w# k; E- |( Y: z* F0 b8 L * 23 - Temperature Control Device0 J) ^7 w. H0 e2 u8 s8 _
* 25 - Synchronizing or Synchronism-Check Device
& F+ Y5 @; H, r7 [. m0 f * 26 - Apparatus Thermal Device2 J$ R: i, N2 l5 T
* 27 - Undervoltage Relay
+ P" S; p5 y4 K- [ * 29 - Isolating Contactor# N% _; J4 ^2 g0 v% D
* 30 - Annunciator Relay
7 {5 ^- s4 Z% Z3 N7 k * 32 - Directional Power Relay
) ?# c0 P$ J `9 Z, V) ] * 36 - Polarity or Polarizing Voltage Devices
d3 y6 |0 K& M6 W! F( P5 M * 37 - Undercurrent or Underpower Relay
6 @8 R W7 O) c9 e) P( K# v" K6 T * 38 - Bearing Protective Device% ^& n* O& D3 z- s% y* ]
* 39 - Mechanical Conduction Monitor4 P, g1 Q9 y& H6 \
* 40 - Field Relay- K$ F& m: Z! h/ o' z
* 41 - Field Circuit Breaker# c2 |" u# {" c2 ]
* 42 - Running Circuit Breaker: r; q% O7 W- ]8 R
* 43 - Manual Transfer or Selector Device
4 m o6 m) F6 o) c+ S# M# W * 46 - Reverse-phase or Phase-Balance Relay
, w& l1 s, ~3 ?- Y2 h1 { * 47 - Phase-Sequence Voltage Relay
; c) F$ \! y+ t; k) P * 48 - Incomplete-Sequence Relay9 z) Z: G, W( ]0 A, c6 n
* 49 - Machine or Transformer Thermal Relay; `6 x, k5 L$ \ v% s6 `
* 50 - Instantaneous Overcurrent" P" Z F0 h3 _" P8 B
* 51 - AC Time Overcurrent Relay
( W% _; A" I; n+ {# I * 52 - AC Circuit Breaker1 g2 r% R/ B" i$ p9 s' W; a) q
* 53 - Exciter or DC Generator Relay$ v- \1 s7 n+ |$ s- D0 O! f$ y! {9 R& k
* 54 - High-Speed DC Circuit Breaker
0 }& B. a9 _7 o, ~( f0 N& S" A4 h * 55 - Power Factor Relay
5 S6 \ H2 p" F: [# U * 56 - Field Application Relay i& v6 L& L% \9 x- F
* 59 - Overvoltage Relay
( P. a" Q, J8 J2 Q( I. X2 ]9 W1 O * 60 - Voltage or Current Balance Relay7 _2 L8 a! G+ L
* 61 - Machine Split Phase Current Balance. F6 R" T0 N. X
* 62 - Time-Delay Stopping or Opening Relay. T+ I8 q6 w/ h/ v5 Y7 ^9 }/ z
* 63 - Pressure Switch
0 t9 V8 j( {; W+ x * 64 - Ground Detector Relay
% J1 e9 j1 d! b$ o/ f1 y * 65 - Governor5 g* z2 c* r, H; C g
* 66 - Starts per Hour; h' w+ s q0 M
* 67 - AC Directional Overcurrent Relay
( d* Q/ K5 G" e: K/ Q# H% N2 P * 68 - Blocking Relay% q. h8 G' C: D9 v
* 69 - Permissive Control Device
& E9 S1 t* t0 ]' c$ J * 71 - Level Switch+ Q# f/ J3 _: j7 R4 v' l+ C
* 72 - DC Circuit Breaker
/ w: b$ M( u& s1 D& y * 74 - Alarm Relay6 e& C9 z: z1 S+ Z, X8 ?6 S
* 75 - Position Changing Mechanism
2 {1 H' U6 |$ d * 76 - DC Overcurrent Relay0 \2 S" P6 j! X5 @6 t8 G# e& U* P
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
2 Q; F' S1 i7 f- A * 79 - AC-Reclosing Relay1 [# H8 U7 I* `9 k1 Y: N
* 81 - Frequency Relay
( Q6 H" @; F9 Q/ T * 83 - Automatic Selective Control or Transfer Relay2 r* L% q u! p
* 84 - Operating Mechanism3 C; A- `9 b; y$ b/ W
* 85 - Carrier or Pilot-Wire Receiver Relay
: v) S K2 u- O * 86 - Lockout Relay
- r" A' U4 a/ p1 q * 87 - Differential Protective Relay. i+ X& J- |- g2 C
* 89 - Line Switch
, h3 {1 v |9 n h * 90 - Regulating Device
/ i, V+ [: |: z/ w8 ~8 D3 Z8 X4 E * 91 - Voltage Directional Relay# |; c+ S, x% k( W& q% e/ u
* 92 - Voltage and Power Directional Relay5 c: G9 p1 i/ [# g8 Y: o
* 94 - Tripping or Trip-Free Relay
% e4 }7 b: U! _; j- S * 95 - Reluctance Torque Synchrocheck
& X- K* Z. o( z% q0 G! F k! a$ k: G * 96 - Autoloading Relay |
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