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List of Device Numbers
6 t/ w. G$ v% c5 R& a) D3 GClick to learn more...( y9 }1 y! a6 Y; \2 D" O& {; a
& i% v ?) p* ?2 M6 j! k" ^ * 1 - Master Element
! c2 O8 G) L1 d0 q5 P, Y* a( y9 } * 2 - Time Delay Starting or Closing Relay3 D, `) D1 a" \) x/ u
* 3 - Checking or Interlocking Relay
* d$ t( @6 L6 u: O) `7 r r * 4 - Master Contactor
. W: w1 Z) m5 z, w * 5 - Stopping Device
( z7 ^0 R$ x% o1 { * 6 - Starting Circuit Breaker
% ^: d- I9 s- \$ c; l2 J3 R * 7 - Anode Circuit Breaker& C+ J' O7 }1 r( o% S# U- `
* 8 - Control Power Disconnecting Device- t) N) [& ]3 a+ m: V
* 9 - Reversing Device4 B8 B2 k5 `) Z" x$ m" W
* 10 - Unit Sequence Switch
" u' v* i( |, _' Q% Z0 G( a * 12 - Overspeed Device
. k5 m6 O" r, m' l * 13 - Synchronous-speed Device
2 x- \% t5 {% S* p( s% W9 x * 14 - Underspeed Device C' `5 ^& U* ?$ @4 |+ B3 E1 i. d: E
* 15 - Speed - or Frequency-Matching Device# w: L1 v% j) T5 d! R, w
* 21 - Distance Relay
0 m9 Q# J9 O, ]5 t * 23 - Temperature Control Device, Q) f* m* y7 I1 O8 Z7 J) n3 S2 l
* 25 - Synchronizing or Synchronism-Check Device2 }4 e0 e( Z+ E7 S& H2 [
* 26 - Apparatus Thermal Device
" ?4 F/ s" B4 r * 27 - Undervoltage Relay* H; p+ ]2 Q1 j; q- O
* 29 - Isolating Contactor+ `. M/ G+ {: X0 y# U# d2 U
* 30 - Annunciator Relay8 v( A+ K4 C9 p' S. t, v3 p
* 32 - Directional Power Relay
o( C( z) L! o! {/ y * 36 - Polarity or Polarizing Voltage Devices, k1 Z$ f3 W/ w# V: y: M; F! K
* 37 - Undercurrent or Underpower Relay
; B n5 C. p( k$ r' u& | * 38 - Bearing Protective Device7 U6 Y1 y y5 Y8 ~7 C& H
* 39 - Mechanical Conduction Monitor K `. v3 V: @$ D; h
* 40 - Field Relay d7 R. P1 }9 i
* 41 - Field Circuit Breaker }+ [: F8 j. y2 e7 ^6 u9 W! C
* 42 - Running Circuit Breaker
9 t$ @, F( W- M- r * 43 - Manual Transfer or Selector Device# r! N$ C! T d- _: x( P; s! f$ H
* 46 - Reverse-phase or Phase-Balance Relay
; y: n2 `, { } * 47 - Phase-Sequence Voltage Relay% W2 t* \' X9 ^2 X$ V
* 48 - Incomplete-Sequence Relay0 _* Z3 J5 @: i% L. ~& _5 _! x0 _
* 49 - Machine or Transformer Thermal Relay
0 {$ j+ J2 b, W2 ~ * 50 - Instantaneous Overcurrent
! O9 W7 ^8 H6 x4 a( \ * 51 - AC Time Overcurrent Relay
: m$ j3 }4 m, g * 52 - AC Circuit Breaker
0 I" C ~4 w0 B1 a7 _. `% @ * 53 - Exciter or DC Generator Relay
* U9 s- l8 v8 \/ u- n * 54 - High-Speed DC Circuit Breaker% ~, `. K" Z. i0 C
* 55 - Power Factor Relay
u6 M4 Y- @+ j# }0 x, m5 P * 56 - Field Application Relay3 b& ?- h5 I9 u9 {0 X8 \
* 59 - Overvoltage Relay6 l0 w4 u. L) C4 s* M* h9 X" G" ~
* 60 - Voltage or Current Balance Relay
( D$ U0 H T. @4 l4 r+ H7 S: t. u+ Z5 N * 61 - Machine Split Phase Current Balance
- }5 l U( U* f. ?1 U9 N * 62 - Time-Delay Stopping or Opening Relay, ~5 {6 s& O5 V' e) |
* 63 - Pressure Switch
" E$ f# T' v; i* c9 e" l0 L* y * 64 - Ground Detector Relay
) b" w" ?) z S. H * 65 - Governor
( l8 @# W7 |* @" j5 } * 66 - Starts per Hour
0 ]* W. \: P$ E( s* j * 67 - AC Directional Overcurrent Relay5 v/ z' `& \6 [0 O) r
* 68 - Blocking Relay# q1 E. H @7 ~) b% z
* 69 - Permissive Control Device
& Y2 l8 X' P5 f8 Y+ n * 71 - Level Switch
- s+ m+ V/ t [ * 72 - DC Circuit Breaker7 T0 T0 A" y q: t |# N3 O |
* 74 - Alarm Relay# E( a! g; c0 n! b# {1 L; N. s
* 75 - Position Changing Mechanism' ~, G7 l8 j) Q1 x
* 76 - DC Overcurrent Relay
; r$ u `5 B$ e1 p2 q R) ` * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
6 H2 z% @0 D0 w4 l$ K * 79 - AC-Reclosing Relay Q6 p9 S" }$ [3 Z; J9 z
* 81 - Frequency Relay
3 t+ j5 f0 |. @* X, j9 ~& R0 N8 m * 83 - Automatic Selective Control or Transfer Relay" p4 m. ]5 P' B9 G2 B! C9 X6 w
* 84 - Operating Mechanism
; S7 V( E& P6 t! z0 S# G, M, C7 ^2 | * 85 - Carrier or Pilot-Wire Receiver Relay( o7 t. L, }2 p/ D
* 86 - Lockout Relay/ a; I7 {, }. t. Y" l4 ]# z1 S
* 87 - Differential Protective Relay
9 ]0 O; v7 T0 Y * 89 - Line Switch
. k z4 t1 ~. W * 90 - Regulating Device
' I' o$ n( ~1 ?% m! W! `6 D * 91 - Voltage Directional Relay
+ ?# t9 t! B8 C% l" s/ d" `5 O * 92 - Voltage and Power Directional Relay" Q2 O L/ U' A) d5 z8 j0 e
* 94 - Tripping or Trip-Free Relay4 V I# l5 ~" w! ~ {' P
* 95 - Reluctance Torque Synchrocheck2 e7 i2 Z% w8 J
* 96 - Autoloading Relay |
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