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List of Device Numbers b) {6 W) {% q6 P; T
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* 1 - Master Element0 p1 L2 u8 H9 o! L6 E6 T3 g
* 2 - Time Delay Starting or Closing Relay0 m6 a" o/ h) i3 y7 v
* 3 - Checking or Interlocking Relay
9 ?: j1 F G! o$ n! c% [- U# \, L" s * 4 - Master Contactor
5 E' p7 T( R5 M: Q, |& S- v# ]6 } * 5 - Stopping Device
T$ y5 }* v* g4 ^/ k * 6 - Starting Circuit Breaker
9 Y7 n* Z- f7 e * 7 - Anode Circuit Breaker
1 f9 n: I, d% Q" w; w4 i * 8 - Control Power Disconnecting Device
5 `/ T! E$ p; S c6 ]- Y * 9 - Reversing Device
6 D' \/ K X. K * 10 - Unit Sequence Switch8 i0 i; H5 J; \2 v
* 12 - Overspeed Device4 ?9 G% K) X* y" _8 }7 z
* 13 - Synchronous-speed Device0 R' L, b$ J% E( n* U! n2 [
* 14 - Underspeed Device
% E0 }! }( L6 ~3 X) d( A * 15 - Speed - or Frequency-Matching Device) n. j9 o# I% a' Z l; O! f, Y
* 21 - Distance Relay
6 A* l3 L( h* ` v4 z! n * 23 - Temperature Control Device
% ^0 \8 f7 V2 P9 ?5 D! c" L( Q * 25 - Synchronizing or Synchronism-Check Device
3 P9 g! L. o) D1 {. N" \' C1 @2 e * 26 - Apparatus Thermal Device; @# T, I0 @2 Q2 z
* 27 - Undervoltage Relay! T) S( J0 @# c1 D0 N
* 29 - Isolating Contactor
, j! n% g6 s4 R& A e9 ~ * 30 - Annunciator Relay
& J9 n& ]: B( L' p- ? * 32 - Directional Power Relay$ j3 e- ^1 B! L' h
* 36 - Polarity or Polarizing Voltage Devices
/ E& K8 `* L% a% e; i * 37 - Undercurrent or Underpower Relay' A9 A8 c' ]/ h1 T2 y* Y
* 38 - Bearing Protective Device
8 U$ a! w9 @3 k" g# s * 39 - Mechanical Conduction Monitor
% W' N, Y, D" J! u1 P* V * 40 - Field Relay
: g4 x' Q9 h$ \1 T+ k9 @% ] * 41 - Field Circuit Breaker
. ~- Z$ h; p2 N * 42 - Running Circuit Breaker( t; X1 w& V4 n- k
* 43 - Manual Transfer or Selector Device
4 w5 m# u7 V* P$ u* O, w * 46 - Reverse-phase or Phase-Balance Relay
5 a2 W3 k+ x0 i6 d1 k3 F8 x1 ? * 47 - Phase-Sequence Voltage Relay
; A. G& C7 u d* m0 `$ K * 48 - Incomplete-Sequence Relay
) S$ m- j) z0 Z+ F7 t * 49 - Machine or Transformer Thermal Relay7 B$ |' a$ X" V
* 50 - Instantaneous Overcurrent$ ` T4 V) j4 g# Q
* 51 - AC Time Overcurrent Relay2 z: g* T. C+ ~0 _+ M: d
* 52 - AC Circuit Breaker0 i5 p2 r5 U9 W
* 53 - Exciter or DC Generator Relay
- ?) ?$ I4 S3 p. h9 ]# B( L" F& ? * 54 - High-Speed DC Circuit Breaker
~8 F$ m% n3 g3 v5 L * 55 - Power Factor Relay
6 x/ |( T% w, p5 i% @0 V4 ^ * 56 - Field Application Relay9 E1 d! T Y& j) X; [
* 59 - Overvoltage Relay" G* y* P- o0 z! J3 G
* 60 - Voltage or Current Balance Relay
: f0 L2 m1 C; ]* @% z d * 61 - Machine Split Phase Current Balance
4 @9 j: I% M/ `" Q, T. W * 62 - Time-Delay Stopping or Opening Relay" m p# ]) D) R8 w1 E6 T
* 63 - Pressure Switch
0 p( [8 T1 i. |: C1 C; j * 64 - Ground Detector Relay& b3 t J0 t5 l5 C& y+ c9 T
* 65 - Governor# ]6 a# F9 z2 O' ^; k$ ^% j
* 66 - Starts per Hour, {% r7 c5 g- o' f5 o( [9 K4 @
* 67 - AC Directional Overcurrent Relay2 O! x% _* ^$ o! r/ {8 a2 J
* 68 - Blocking Relay0 [4 Y2 B6 |2 A
* 69 - Permissive Control Device1 R7 i! c) B) u+ O
* 71 - Level Switch
2 f8 y# N2 P" `# D2 G! J * 72 - DC Circuit Breaker+ u- e9 _7 A+ p& Y6 v
* 74 - Alarm Relay
1 Q4 z3 q9 L6 k& i9 m U- c0 o * 75 - Position Changing Mechanism
j5 G. k& h; K$ s- C * 76 - DC Overcurrent Relay
, W' x3 n2 k- B+ \2 w8 D' S2 t * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
- l) |# O9 d6 B2 O: U k$ c6 B * 79 - AC-Reclosing Relay
$ Z1 `! F% @) b {( R/ D( B * 81 - Frequency Relay
! ]7 \( i* E/ t/ S/ u$ ` * 83 - Automatic Selective Control or Transfer Relay
. A# I5 y8 C: d% g* H, Z+ o * 84 - Operating Mechanism
3 D1 ]% E0 ^% j. n3 `" A * 85 - Carrier or Pilot-Wire Receiver Relay4 w- C- p9 V ~" m" _4 G
* 86 - Lockout Relay
- T7 l3 m; B8 T) D4 J( u& E * 87 - Differential Protective Relay% p6 H* s: q( \3 |+ L
* 89 - Line Switch
; j2 T- u. E) {8 A9 S * 90 - Regulating Device
- ~5 c$ J# q+ c+ V% S * 91 - Voltage Directional Relay/ q& Z, }- n% Y( l; ]
* 92 - Voltage and Power Directional Relay
% d5 B' g# Z6 d0 U * 94 - Tripping or Trip-Free Relay
% E& G6 M4 ~: `7 K- W2 U' i * 95 - Reluctance Torque Synchrocheck# W9 O: B8 n' W3 s, g' O9 l- K
* 96 - Autoloading Relay |
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