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List of Device Numbers
# s0 O- D1 D; {5 eClick to learn more...+ @) l7 M" i4 O7 D1 e% S$ u
" ]3 J& {, W, x * 1 - Master Element4 G8 F. u" l0 |3 A, a
* 2 - Time Delay Starting or Closing Relay
: D( \: G8 x0 I2 l5 L5 J * 3 - Checking or Interlocking Relay
9 L3 t$ B( o* W2 i+ |2 u! k) K9 Q * 4 - Master Contactor
5 d: l# V5 M) G$ f# U * 5 - Stopping Device' q7 G' I9 w9 X5 W9 c
* 6 - Starting Circuit Breaker
& u4 v+ g" D' n. K% a' T2 U0 o! F * 7 - Anode Circuit Breaker4 _/ v; F0 [- z3 J1 y
* 8 - Control Power Disconnecting Device
2 H1 d; d% b8 R9 ~ * 9 - Reversing Device+ \% c6 R- A% N5 h
* 10 - Unit Sequence Switch8 h% A+ B+ N/ ?, N/ w
* 12 - Overspeed Device5 [/ M/ y2 o' g: U* {" h% h
* 13 - Synchronous-speed Device8 Z2 z/ _3 I& C# _
* 14 - Underspeed Device
. G% }" |3 ~& ^5 R$ E, ^ * 15 - Speed - or Frequency-Matching Device
; `8 E) f& h. X' s% z0 z# h3 { * 21 - Distance Relay' t1 C! ~" E7 Q. {& u, I
* 23 - Temperature Control Device( c/ K6 N6 ]' ?8 k9 K4 E
* 25 - Synchronizing or Synchronism-Check Device
8 B3 v2 N/ L: r" v/ b0 w% X * 26 - Apparatus Thermal Device+ P) K9 O3 \) |; c7 `2 C" l6 B5 Q% U
* 27 - Undervoltage Relay& O$ c$ o4 T, m1 }9 y! B# q
* 29 - Isolating Contactor
/ N: @7 ]0 h8 Y1 O; F- m7 ` * 30 - Annunciator Relay1 [% I2 `3 Z A
* 32 - Directional Power Relay
9 b9 ~9 A5 @* S' F2 x( ]/ ` * 36 - Polarity or Polarizing Voltage Devices
3 E) Q$ d7 c* B/ [$ c * 37 - Undercurrent or Underpower Relay
' F" U+ l+ M/ C0 D9 Z& H; g * 38 - Bearing Protective Device
* Y' O, ~1 i' Y( ?7 e * 39 - Mechanical Conduction Monitor, ?$ f, _: z% m7 T4 d6 }& h+ J, f3 j$ z
* 40 - Field Relay
' _; t# n5 U1 l; F8 L& l0 D% z5 _5 W# r * 41 - Field Circuit Breaker0 Y1 J4 [% ^$ e$ J
* 42 - Running Circuit Breaker; ~+ w" t' V$ q2 i. w
* 43 - Manual Transfer or Selector Device
0 _" y3 W9 I& l U * 46 - Reverse-phase or Phase-Balance Relay" f! Q; [. R+ Q7 z; O" p% S
* 47 - Phase-Sequence Voltage Relay) c* P; s6 R- ^
* 48 - Incomplete-Sequence Relay3 W) j/ J9 F* P, @6 l$ N: o1 B
* 49 - Machine or Transformer Thermal Relay
0 U/ |+ P+ x7 o+ S) v" B6 l( z! {1 X I * 50 - Instantaneous Overcurrent- F8 P6 M- G E8 A, T3 N( K
* 51 - AC Time Overcurrent Relay
& \3 | \/ \4 t6 q, {$ A0 @; V7 M7 f- f @ * 52 - AC Circuit Breaker
$ _. b& i4 N3 l! @/ t! i * 53 - Exciter or DC Generator Relay
. c% j3 F9 y9 F * 54 - High-Speed DC Circuit Breaker! e: @, \' ]/ L# Z2 y4 m
* 55 - Power Factor Relay& `, A2 F. m U+ B. c
* 56 - Field Application Relay! o0 E- _ j% ~) M+ I S
* 59 - Overvoltage Relay
0 F) H. W+ e6 { * 60 - Voltage or Current Balance Relay6 q# `8 p) j* W8 G, G9 t; z+ k, K
* 61 - Machine Split Phase Current Balance
9 q# J8 J3 X* W" b * 62 - Time-Delay Stopping or Opening Relay
# z) P# _; A; L1 ~ * 63 - Pressure Switch7 x: L1 I7 v g& H
* 64 - Ground Detector Relay# w4 T, `) _' j+ b/ i! N
* 65 - Governor! V" b1 q. X; n
* 66 - Starts per Hour
# ^8 w( C( t$ h6 v- ^ P/ l# p * 67 - AC Directional Overcurrent Relay
5 _, X* s, I9 O * 68 - Blocking Relay" P$ m# [3 C6 a6 Y
* 69 - Permissive Control Device: \* l, D& m& K8 M5 D$ g6 Y' C* O1 j
* 71 - Level Switch4 f# S2 s2 M: W3 T% E
* 72 - DC Circuit Breaker
5 _1 z- W9 ]5 m9 _$ Y * 74 - Alarm Relay
% F2 |/ K0 i. |) L$ n6 F * 75 - Position Changing Mechanism6 [. k& L ?3 o
* 76 - DC Overcurrent Relay+ n7 ?0 C- [* l- Y% f
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay _4 Z2 z( N! }
* 79 - AC-Reclosing Relay7 L4 _$ Z `) J$ t; R! t
* 81 - Frequency Relay
9 a1 W$ U4 o' w0 F5 B * 83 - Automatic Selective Control or Transfer Relay
2 O( W& E; _0 o s& Q8 V0 k * 84 - Operating Mechanism! E% R) F v) D9 T6 v
* 85 - Carrier or Pilot-Wire Receiver Relay
2 a& u9 m9 |2 o% ] * 86 - Lockout Relay, B, W+ M- Z0 B4 L. C$ P% ?
* 87 - Differential Protective Relay
+ J i# X9 q5 y8 n. y * 89 - Line Switch
( q0 p; w; a' l( H: Y; v! d- ^ * 90 - Regulating Device
, ~8 A8 I9 L; `8 t * 91 - Voltage Directional Relay7 R1 d% Y* @7 V8 L. m' S3 w
* 92 - Voltage and Power Directional Relay
- M0 v9 M! t( J7 X * 94 - Tripping or Trip-Free Relay9 F. k3 u( K( |& u. k; N* h. P
* 95 - Reluctance Torque Synchrocheck1 ?/ p5 O; u( N$ W, `$ o) ^
* 96 - Autoloading Relay |
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