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List of Device Numbers
0 ^: H+ q, p1 K/ r1 v- {: IClick to learn more...* d) }$ e6 E5 h
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* 1 - Master Element
* k, l, R# t# W) ]: G9 @ * 2 - Time Delay Starting or Closing Relay
8 V( b( x6 a/ b0 K5 | * 3 - Checking or Interlocking Relay
: ]7 R: S2 P3 n * 4 - Master Contactor* k; j9 \8 E; O& X, O' K" o: `
* 5 - Stopping Device
# R1 y+ U# c4 r3 z( g+ b# T* x+ J * 6 - Starting Circuit Breaker
3 t% C5 F) F k6 L* E3 M! o7 v * 7 - Anode Circuit Breaker5 m% E7 F: D H g. L% Z
* 8 - Control Power Disconnecting Device& t r1 ^: c8 Q1 E* t n7 o
* 9 - Reversing Device
% S9 }9 W4 Z& _0 S: `/ E * 10 - Unit Sequence Switch
3 z. |! \& e# x/ X% n; \& _+ ~ * 12 - Overspeed Device% ~5 c- ?; |2 w$ v8 _
* 13 - Synchronous-speed Device& @$ E* U+ I I( q9 T1 W: ~
* 14 - Underspeed Device3 J! ^* R) K( O8 c) e
* 15 - Speed - or Frequency-Matching Device6 b% m8 Y( u) o- q4 C; a
* 21 - Distance Relay. H7 k. y8 ^& L# ~. ?
* 23 - Temperature Control Device
) v. m6 \1 `+ l( f6 X0 l7 b * 25 - Synchronizing or Synchronism-Check Device& t: b8 a* r C' l6 K# Q3 I. b6 B, d
* 26 - Apparatus Thermal Device
+ V7 q3 |, n. J * 27 - Undervoltage Relay
6 }) `. \$ g( ?- I" S. f. j * 29 - Isolating Contactor W, e6 y2 s$ y+ Z
* 30 - Annunciator Relay+ ?* ]9 M& @1 o6 D4 l% O: N2 _
* 32 - Directional Power Relay
/ Q9 O0 N1 s+ w3 k * 36 - Polarity or Polarizing Voltage Devices
. k' u7 z) f6 D9 l) z- ^ * 37 - Undercurrent or Underpower Relay
% K. x1 |: s# @ E" b: f * 38 - Bearing Protective Device, a3 W$ B% M/ A: Y: G
* 39 - Mechanical Conduction Monitor* w# t: n; A7 d- X4 a; n
* 40 - Field Relay
% z/ a7 K7 z* ?% l& ]$ I+ I * 41 - Field Circuit Breaker" e/ g0 S" V1 X: S% J( ^
* 42 - Running Circuit Breaker
& y( {& G/ R6 }" H, a8 ^) W% i * 43 - Manual Transfer or Selector Device9 J- ]+ N `9 w" j
* 46 - Reverse-phase or Phase-Balance Relay* j I) V# I2 ?8 u2 t5 W
* 47 - Phase-Sequence Voltage Relay. \4 z- H7 x( l$ t
* 48 - Incomplete-Sequence Relay
y. Z! V4 @- X- ] ~ * 49 - Machine or Transformer Thermal Relay& L; U" i! m6 m( b
* 50 - Instantaneous Overcurrent
" V1 U) W9 s) p * 51 - AC Time Overcurrent Relay
2 ]. A8 ]1 E) f, A * 52 - AC Circuit Breaker
5 o) u/ @# S! r* l2 K0 o6 W * 53 - Exciter or DC Generator Relay
8 w4 c( ?+ w2 L% [+ C/ P& ? * 54 - High-Speed DC Circuit Breaker- l N" n$ p0 e' R8 S7 s+ t7 V& K2 W r
* 55 - Power Factor Relay
% A1 G/ F6 |9 w9 n: e/ r. e: Q * 56 - Field Application Relay
8 x; u: F2 ?. H5 i * 59 - Overvoltage Relay
# u3 L8 s0 |! Z* ]7 t G9 |/ r * 60 - Voltage or Current Balance Relay% l9 J4 M7 s' \; f7 E; g
* 61 - Machine Split Phase Current Balance
1 w9 [* C/ Y7 o5 K4 e * 62 - Time-Delay Stopping or Opening Relay+ B; e# V) _1 `5 g* G2 J
* 63 - Pressure Switch
{- \0 W, h9 W+ O: R8 h6 m * 64 - Ground Detector Relay# n1 H" }3 c7 j' z: Y3 k. J* k
* 65 - Governor
# n: P: S6 v# e, J# v0 [# j * 66 - Starts per Hour: s3 ?, q7 ~( j
* 67 - AC Directional Overcurrent Relay4 j' Q( W" m p6 E
* 68 - Blocking Relay
. N/ J. k6 X7 h1 [ * 69 - Permissive Control Device4 Q: R; m- J! b5 y9 J
* 71 - Level Switch
! h5 P, G; H5 q9 ?4 x * 72 - DC Circuit Breaker
+ `& `. ~7 I# K: K$ ~% m2 E * 74 - Alarm Relay S7 s* H1 c0 ?2 S; t' C" j- h" s
* 75 - Position Changing Mechanism; T, z3 P: z4 a
* 76 - DC Overcurrent Relay
0 J7 S! g% N( H* ^ * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
7 z: C3 _+ {- {! Q3 C' y" i( x9 V3 n * 79 - AC-Reclosing Relay% B7 t8 S6 Q5 ~0 M
* 81 - Frequency Relay
+ D, Y5 a# m4 x- T& [: O * 83 - Automatic Selective Control or Transfer Relay
, R$ t; h+ q6 c5 w0 L * 84 - Operating Mechanism
7 U0 _2 [* P( y * 85 - Carrier or Pilot-Wire Receiver Relay
/ o5 H6 a, d2 ?* @ * 86 - Lockout Relay3 ^, n$ [ n6 s# ^
* 87 - Differential Protective Relay% q) M7 K/ w9 Y& N) {3 |$ d
* 89 - Line Switch
+ e" G; B# g& B! y * 90 - Regulating Device& q) d% @+ T9 i' F; Z
* 91 - Voltage Directional Relay; m* w2 P; N4 ]
* 92 - Voltage and Power Directional Relay
9 U0 {- m. l6 u * 94 - Tripping or Trip-Free Relay O1 T5 q7 O- c6 d/ g3 ~
* 95 - Reluctance Torque Synchrocheck1 y4 H: v' M3 ^: {; S
* 96 - Autoloading Relay |
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