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List of Device Numbers
9 @9 a' s+ F2 ~! {' t; @4 D0 B0 EClick to learn more...7 w4 p+ l0 r4 T9 K
! Z( g( e6 q6 F6 S! _* y0 E, }' z: a) k * 1 - Master Element* A0 r2 t$ C' c0 P! b
* 2 - Time Delay Starting or Closing Relay ]$ b% q( J* v" S
* 3 - Checking or Interlocking Relay
' p8 P! b: x- [ R: k5 }/ w * 4 - Master Contactor, G; ^9 V( @+ |# F4 Y
* 5 - Stopping Device
; Z$ T8 ^/ `# f * 6 - Starting Circuit Breaker
1 _1 C8 y3 e* h& I" n * 7 - Anode Circuit Breaker* W9 f! X' [1 o# k- w
* 8 - Control Power Disconnecting Device
) e& c1 t, c! _) T! L( E7 F" x * 9 - Reversing Device
1 m( ?0 Y6 I& _" T( w * 10 - Unit Sequence Switch
7 W" o7 d# l& A * 12 - Overspeed Device- N% ]2 {4 y% @# B
* 13 - Synchronous-speed Device; v+ [4 }6 a( `" V
* 14 - Underspeed Device6 f% }. O5 C4 M2 y
* 15 - Speed - or Frequency-Matching Device
- } W( ~% l) q' n @) C, @( w * 21 - Distance Relay) P/ x `$ Q& y d1 M& p% N O0 a
* 23 - Temperature Control Device
& J9 b( w9 ?4 L+ e1 I) P- K1 l6 ] * 25 - Synchronizing or Synchronism-Check Device* r- d' I: c2 @: s. P
* 26 - Apparatus Thermal Device) C/ n8 ?* n$ ~/ C
* 27 - Undervoltage Relay
& s- w" r. Z' L; {( j0 R * 29 - Isolating Contactor' i" s: a9 U, w5 [8 R, r
* 30 - Annunciator Relay
) O$ g8 v6 j m3 ^3 ? * 32 - Directional Power Relay
% w* d, T8 I/ n * 36 - Polarity or Polarizing Voltage Devices
. ^; D9 G3 C1 r2 E! x# x2 D# [ * 37 - Undercurrent or Underpower Relay' l' Z* P# E# G* D
* 38 - Bearing Protective Device
$ h) m% Y, |+ ^1 [ * 39 - Mechanical Conduction Monitor
; c, Z! c w, N- ` * 40 - Field Relay$ u( m) o `; ~5 ]; e' X
* 41 - Field Circuit Breaker
3 H, D3 p6 w& `. v6 z# V" S! u. n7 H * 42 - Running Circuit Breaker
. T! N" b% k) }: W9 t# h+ N * 43 - Manual Transfer or Selector Device4 G4 e" Z2 _- s2 b
* 46 - Reverse-phase or Phase-Balance Relay
* t! d6 t5 k4 I6 X% _, ] * 47 - Phase-Sequence Voltage Relay* Z! S2 K& n$ b; d
* 48 - Incomplete-Sequence Relay
* K4 u! n; C( |! t4 T * 49 - Machine or Transformer Thermal Relay
5 d! V: e- `! \, G * 50 - Instantaneous Overcurrent
. ~4 E$ h6 Q3 F2 S- x * 51 - AC Time Overcurrent Relay
5 ?- I9 v( f5 U2 z * 52 - AC Circuit Breaker
# _% H4 {# b, b3 ^' f% z: E) ? * 53 - Exciter or DC Generator Relay
. S( ?) s0 K- ] * 54 - High-Speed DC Circuit Breaker
; n3 z& c3 X2 @# g# f0 M C% X* u' ` * 55 - Power Factor Relay
$ J* b! M" n5 g. W, d' g * 56 - Field Application Relay, \& q. y8 h8 o5 ?8 q
* 59 - Overvoltage Relay' J5 C+ f4 C: u
* 60 - Voltage or Current Balance Relay" @# H9 z6 r( i8 g/ d
* 61 - Machine Split Phase Current Balance
5 n3 O+ g) b/ h1 V0 w4 w * 62 - Time-Delay Stopping or Opening Relay% m$ \8 j2 Z4 }. P% D
* 63 - Pressure Switch1 K! I+ |0 m. @! V3 `; h
* 64 - Ground Detector Relay
7 T0 E! a! c8 D. J * 65 - Governor- ` \& P s+ ^" ?6 ?& x) K
* 66 - Starts per Hour
5 _! H. N; O, \ * 67 - AC Directional Overcurrent Relay' B( L- z/ T4 F. \/ _( e1 x2 T
* 68 - Blocking Relay
J" J8 l' ^# S/ X * 69 - Permissive Control Device
5 H9 |4 f+ V5 N5 Z' w! |3 \" x * 71 - Level Switch5 N& j7 ]7 c7 H j
* 72 - DC Circuit Breaker
, \! g5 q I2 H- i5 }, x; Q * 74 - Alarm Relay
# W: Y# ^" P4 n' t6 H8 [8 E6 [ * 75 - Position Changing Mechanism s* V3 r/ L3 d9 U1 ~. J$ W3 ]
* 76 - DC Overcurrent Relay
4 ]% }5 b ~" ]* b i7 ~ * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay2 V8 C; l( f/ x0 Y" Y# ~
* 79 - AC-Reclosing Relay% v! X, u3 G' J @
* 81 - Frequency Relay8 {& e" v% e6 j$ o7 }
* 83 - Automatic Selective Control or Transfer Relay S2 ~2 F% I) [' U: L7 k
* 84 - Operating Mechanism7 o! E5 U" A* ^$ h
* 85 - Carrier or Pilot-Wire Receiver Relay. k$ H" h2 g" B& L% D
* 86 - Lockout Relay' ]! `! J( |, ~; q0 X- r
* 87 - Differential Protective Relay
- F! T& V, h5 G+ m; d * 89 - Line Switch+ d0 d3 c4 k O% l2 Q: G
* 90 - Regulating Device
- `0 I$ N; T' u# M8 V * 91 - Voltage Directional Relay
& L" B- U; {2 ?* @' A8 O0 ^ * 92 - Voltage and Power Directional Relay4 l7 e: X% \( ] Q4 s1 }
* 94 - Tripping or Trip-Free Relay
& X( z# K; J) ?6 B7 e8 \2 ^; ~4 L. p * 95 - Reluctance Torque Synchrocheck
8 h ^/ P- ^3 ~& {! t; R * 96 - Autoloading Relay |
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