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List of Device Numbers
, |0 }3 i/ Z; {3 M. U; g' HClick to learn more.... _# v( M$ u3 _1 i
! {; n' Y" ?5 b$ H# J * 1 - Master Element
% u+ K% z( o5 q, b( V; R * 2 - Time Delay Starting or Closing Relay
: Y5 c- p# u# m' V. f3 [% P * 3 - Checking or Interlocking Relay
( k* o* B0 q7 G# N5 V' ^ * 4 - Master Contactor9 N3 I0 [4 j; i. N- y9 n V& ~
* 5 - Stopping Device
# U* \1 ]/ ^7 Q; @7 m$ Z * 6 - Starting Circuit Breaker
! X3 f5 I m" r * 7 - Anode Circuit Breaker* |6 i+ E2 k; s0 @
* 8 - Control Power Disconnecting Device
" Y6 k( \0 K5 D * 9 - Reversing Device
' N! Y9 m% ?6 V * 10 - Unit Sequence Switch ?% ~* E- d3 G8 b
* 12 - Overspeed Device: R a0 n' C. W+ Z1 A
* 13 - Synchronous-speed Device: I, h3 Y6 w4 S+ O1 y D3 d1 y6 q: [
* 14 - Underspeed Device) L& |" B z# ?; e. ^8 }# m# {
* 15 - Speed - or Frequency-Matching Device
' M: x' ]/ F ^- P; X- j+ l * 21 - Distance Relay
_5 e3 \! Q- @! E * 23 - Temperature Control Device
7 p p! Z( P! R * 25 - Synchronizing or Synchronism-Check Device
4 t% M! D% ?' C ^+ @ * 26 - Apparatus Thermal Device' k! P8 w5 Y. Y
* 27 - Undervoltage Relay
% r" x) A' N: _- e3 O * 29 - Isolating Contactor( l1 U b5 i, Y0 m7 N/ ~; ]) M+ }
* 30 - Annunciator Relay
- V9 ~4 t$ g+ t! T * 32 - Directional Power Relay
$ \, B0 v- K; ~ * 36 - Polarity or Polarizing Voltage Devices/ E( [: d8 a$ U) _
* 37 - Undercurrent or Underpower Relay* \5 n# T' k/ h, {$ r4 [- F, B5 W; _
* 38 - Bearing Protective Device
: S2 G0 y- C1 K' S7 U * 39 - Mechanical Conduction Monitor3 a8 e+ X8 H7 r% E Y
* 40 - Field Relay
7 m) J1 j0 z, C. ^9 } * 41 - Field Circuit Breaker
: f2 m' \# w- O8 e * 42 - Running Circuit Breaker. P1 A% O+ Y) \( N7 r& d9 }
* 43 - Manual Transfer or Selector Device
k! n" g+ t% E * 46 - Reverse-phase or Phase-Balance Relay ^4 y8 g; S! [, l X
* 47 - Phase-Sequence Voltage Relay* X( K% M r G. z& _
* 48 - Incomplete-Sequence Relay
5 I B5 c7 n' r1 A * 49 - Machine or Transformer Thermal Relay
3 k! K. E5 m" j, E * 50 - Instantaneous Overcurrent1 S7 J7 T) d5 V0 z' P9 s
* 51 - AC Time Overcurrent Relay
- a" i) N8 o3 r( P- p * 52 - AC Circuit Breaker1 n2 k5 V; m) T* m( ~! [
* 53 - Exciter or DC Generator Relay
, G1 t* O7 J9 v# F' s9 L* _$ m: X * 54 - High-Speed DC Circuit Breaker
) D2 y y" q# p * 55 - Power Factor Relay9 r' I4 N5 N5 L3 h9 V0 b- t
* 56 - Field Application Relay6 }% c. m- B: i
* 59 - Overvoltage Relay# R' o) b( {# ~' R0 W- n) C& F( q' w
* 60 - Voltage or Current Balance Relay, \, p t& \7 ]1 ]- g
* 61 - Machine Split Phase Current Balance$ X: d6 b( h9 t# p5 l( c: f
* 62 - Time-Delay Stopping or Opening Relay% T/ U1 M/ v3 C- Q( S; W
* 63 - Pressure Switch0 X" k# E6 E% s4 Y5 u, s7 ^2 I" P
* 64 - Ground Detector Relay" A ]0 |; r* L. z. Z, n7 ?
* 65 - Governor4 W; `8 H0 R% Y$ \
* 66 - Starts per Hour
: K! H) E7 X* e5 X% E# B * 67 - AC Directional Overcurrent Relay& ^5 n* d' [7 ]- s) L2 z$ N: w* N6 a
* 68 - Blocking Relay& g8 S: c7 ^8 C) F3 b# @
* 69 - Permissive Control Device
! b3 G0 w! p2 C * 71 - Level Switch
7 K$ d _* `8 K1 c8 [7 c * 72 - DC Circuit Breaker
5 [2 P- K+ }. h, n1 L9 E9 q * 74 - Alarm Relay) s% N# P5 U! A N# }
* 75 - Position Changing Mechanism
+ C7 o$ V$ x* m$ G * 76 - DC Overcurrent Relay! i1 v- S. w+ l/ v
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay) y' v o' d9 l0 E
* 79 - AC-Reclosing Relay
y; a& p, \; T- J * 81 - Frequency Relay
Q- u+ |/ |/ m8 `% Z. T* M * 83 - Automatic Selective Control or Transfer Relay
+ j7 a1 f3 ~- B9 | * 84 - Operating Mechanism" _* E. q6 E# Q* }3 B2 R/ y
* 85 - Carrier or Pilot-Wire Receiver Relay- y$ S% U8 s6 d/ }; m
* 86 - Lockout Relay
0 [ |8 B( T$ K * 87 - Differential Protective Relay1 N, E& H& r: K% a0 N
* 89 - Line Switch% ^9 U' h9 W. C
* 90 - Regulating Device
; x0 f9 M0 z1 A * 91 - Voltage Directional Relay
1 k* D2 {. b; K4 G$ B4 @3 B4 l5 s * 92 - Voltage and Power Directional Relay
7 v. Y0 d1 ?. ?, t * 94 - Tripping or Trip-Free Relay
" \2 t" O$ U' q1 v; |0 f0 H * 95 - Reluctance Torque Synchrocheck% N p B' r: P; K' `4 V( x
* 96 - Autoloading Relay |
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