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List of Device Numbers
2 X" k) [" D# p( M, Q- \- B$ n# YClick to learn more...# U. I) v% Z1 y, b0 ^) Y7 p4 D
1 Q0 r6 m' m" i" G * 1 - Master Element
3 q; O' r0 r8 M8 Y( p2 b * 2 - Time Delay Starting or Closing Relay" Z0 h1 {4 _' G
* 3 - Checking or Interlocking Relay
& u8 ^# k$ Z& H8 f9 k * 4 - Master Contactor
- M) j+ n F/ \# K) _' ?2 w * 5 - Stopping Device
! @2 v$ j; G! ?+ I# @ * 6 - Starting Circuit Breaker
( Q$ @2 ?+ W: j- K# S1 O+ f7 |9 C) W4 K * 7 - Anode Circuit Breaker
- m' v( F$ k" c8 ? * 8 - Control Power Disconnecting Device
8 R2 n3 K/ |+ r, i) h * 9 - Reversing Device# Q7 Y5 v- c( g) v. Q$ w
* 10 - Unit Sequence Switch
8 G+ l [6 r0 Z$ c, R * 12 - Overspeed Device
# F: J" b- V. k) E8 T5 t * 13 - Synchronous-speed Device7 {% f& o0 b( Q7 v" t0 z( i
* 14 - Underspeed Device& U& I6 E2 v8 _$ i( ]# x$ ?
* 15 - Speed - or Frequency-Matching Device
9 C* n. \% I5 `8 p * 21 - Distance Relay
$ k# j" M3 ]$ C' s5 ]% q * 23 - Temperature Control Device. e& `3 j4 B& K- ^! q3 B
* 25 - Synchronizing or Synchronism-Check Device# K6 ]: Y# k2 `% R& h4 s
* 26 - Apparatus Thermal Device9 J( L8 e+ h8 H$ b5 v
* 27 - Undervoltage Relay7 K& M7 |& \' B
* 29 - Isolating Contactor7 F+ [' \# m7 [, Y# S5 a5 t
* 30 - Annunciator Relay
$ g m9 a0 l) ?. Q/ u4 j( A5 i2 _0 k * 32 - Directional Power Relay V3 m+ b& r/ s3 w$ x3 ^
* 36 - Polarity or Polarizing Voltage Devices6 W9 H1 F4 ^: G& N3 v: y( }5 p4 F$ ?# a
* 37 - Undercurrent or Underpower Relay
7 }. k, R/ \9 R. W* E8 V+ I * 38 - Bearing Protective Device
* v v. D: [( }& L) U/ H * 39 - Mechanical Conduction Monitor
' K- M! q; F O6 A$ e- k * 40 - Field Relay
& K7 b) N& y0 J D * 41 - Field Circuit Breaker9 R( J9 v1 V2 j! m
* 42 - Running Circuit Breaker1 i6 q, A% e$ W0 z, k# b: ^' [0 o
* 43 - Manual Transfer or Selector Device
+ o5 H/ ?: c" P* b * 46 - Reverse-phase or Phase-Balance Relay+ c% u( @- Y, t9 ^" ?! B9 k" Y# M5 ]
* 47 - Phase-Sequence Voltage Relay2 Q1 a9 P4 |$ h6 `) E9 \
* 48 - Incomplete-Sequence Relay* w# Q2 {! @* w3 }
* 49 - Machine or Transformer Thermal Relay+ J+ ]% }3 T1 _* w' @! J
* 50 - Instantaneous Overcurrent5 j* m i- e" @6 g! c2 m3 e! t' W
* 51 - AC Time Overcurrent Relay |; l6 t1 z# k `/ d% ~8 ]2 J; n
* 52 - AC Circuit Breaker
8 u0 [2 O: p' d, @5 a2 z * 53 - Exciter or DC Generator Relay- J' z4 w6 {+ Z" S5 \! F7 ^
* 54 - High-Speed DC Circuit Breaker
- v1 b( k; C2 P8 T8 k% ]8 T* [2 ~3 Y * 55 - Power Factor Relay
( o4 T1 m& t/ P% `+ s * 56 - Field Application Relay
: I- o0 V& R, @# O* B) K7 E * 59 - Overvoltage Relay. E# ]6 g' U, O
* 60 - Voltage or Current Balance Relay
. b4 V+ S" L: G; O$ ]: d * 61 - Machine Split Phase Current Balance
' n% x5 X: v+ s0 [- v * 62 - Time-Delay Stopping or Opening Relay
9 F" ]8 M" a* ~8 F. B, E * 63 - Pressure Switch! m# @) N- c8 N# S: p# D
* 64 - Ground Detector Relay
9 F$ C& u+ X. G$ q4 T! l% h; Q6 D* E+ } * 65 - Governor
4 ]0 N" {$ c `' h( ?: y9 m# u' I * 66 - Starts per Hour2 z, ]3 F* q( V$ T
* 67 - AC Directional Overcurrent Relay
% h* e& r/ m& f/ E7 h) ?; g( C8 _ * 68 - Blocking Relay
, X$ _9 Z c) F8 i6 Y0 P. p * 69 - Permissive Control Device
/ F5 j- j' d8 I$ i' k, i' J0 B% m * 71 - Level Switch
) G# t: f# \: ?3 `1 I& d * 72 - DC Circuit Breaker6 Q# n3 V/ j6 f
* 74 - Alarm Relay% P' H, z" |& m8 B: t* C
* 75 - Position Changing Mechanism
4 i& H- c3 s0 l- w6 ?% f+ w# C9 i * 76 - DC Overcurrent Relay3 K( E. z" q5 b( q
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
2 s; V& e. X' T- Y# f% F * 79 - AC-Reclosing Relay
% J1 Q# I3 H p9 M3 [ * 81 - Frequency Relay
+ P; |6 [: p6 g * 83 - Automatic Selective Control or Transfer Relay
4 q) S! S. q4 _) D * 84 - Operating Mechanism: J0 [ l& [) \" O8 P+ B& ~
* 85 - Carrier or Pilot-Wire Receiver Relay+ j8 E+ `1 L0 M
* 86 - Lockout Relay
7 k3 E! y* x; D7 k' b * 87 - Differential Protective Relay) Q3 u6 P! _/ V, T. O: `' M
* 89 - Line Switch* I0 @# T% f' x% b2 t! |
* 90 - Regulating Device3 I, b4 x/ T+ J* C
* 91 - Voltage Directional Relay
; ~+ m( R4 @! m8 Y; I: R& k * 92 - Voltage and Power Directional Relay
% b1 B6 L9 r' g * 94 - Tripping or Trip-Free Relay3 d/ ~1 Q; \) W6 T0 ]/ O G
* 95 - Reluctance Torque Synchrocheck
2 J+ p" d7 ?. l * 96 - Autoloading Relay |
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