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List of Device Numbers
_: j8 O5 U# _5 BClick to learn more...& F0 L B' g5 [- O- i6 U4 ] w
- G, B9 \& H# t. Z, H7 O, s * 1 - Master Element
! [0 K( ^/ P% L# @2 N * 2 - Time Delay Starting or Closing Relay
) E: z& o8 R8 ~ * 3 - Checking or Interlocking Relay
) K$ {6 G, h; ~1 R * 4 - Master Contactor e9 Q# D! f: o$ X x9 ^
* 5 - Stopping Device7 q$ A# t1 Q ] b# }
* 6 - Starting Circuit Breaker" I3 d7 q( G+ E' s) V
* 7 - Anode Circuit Breaker
; j! `# }5 l& g; H" d. ? * 8 - Control Power Disconnecting Device" _) F2 N; X y0 a u) _
* 9 - Reversing Device$ S( e6 ] H5 e6 S& h1 O
* 10 - Unit Sequence Switch
& r3 g; c1 v r * 12 - Overspeed Device* ~% d- w# D9 C
* 13 - Synchronous-speed Device$ R/ t' {8 x' G4 O" x$ |6 g
* 14 - Underspeed Device" E/ ~ z: O$ |% Q% f
* 15 - Speed - or Frequency-Matching Device
; b4 o/ o% l6 O" u. S, } * 21 - Distance Relay( @1 d4 y! r1 [" D% ^9 m+ v
* 23 - Temperature Control Device. P( M( y( t7 w' d7 R" V, f
* 25 - Synchronizing or Synchronism-Check Device0 T" r/ u/ ]/ s! K- f
* 26 - Apparatus Thermal Device
& @! a( k# i- b% y& i' A * 27 - Undervoltage Relay" H K5 H# `" N' Q5 {7 b$ B
* 29 - Isolating Contactor1 {+ x3 o. v, V* T
* 30 - Annunciator Relay
5 r$ m! W# m7 g: a * 32 - Directional Power Relay
$ s' |! B! L$ g3 n5 h, h& h3 A * 36 - Polarity or Polarizing Voltage Devices+ A, V; b% S/ B* n/ g3 U) O: M
* 37 - Undercurrent or Underpower Relay% g* Z5 F/ z4 l8 x" W1 r% |
* 38 - Bearing Protective Device$ M# d" {" S! }
* 39 - Mechanical Conduction Monitor
! A& [+ I o& ^; J c * 40 - Field Relay
- o" m+ @2 D! {5 r E& H' } * 41 - Field Circuit Breaker
6 J" C: S( E" k. D( e' u * 42 - Running Circuit Breaker
1 U, A% ^/ Y: X * 43 - Manual Transfer or Selector Device& g1 a" K+ y4 o9 b7 J4 @
* 46 - Reverse-phase or Phase-Balance Relay
6 K* \% _ ~; q * 47 - Phase-Sequence Voltage Relay
0 j4 j% \8 C, P * 48 - Incomplete-Sequence Relay
8 u: g2 ~$ y) m/ l% L * 49 - Machine or Transformer Thermal Relay
! l' d0 Y- s( y" W3 \ * 50 - Instantaneous Overcurrent! ^- S) f' I: u1 X% b1 Q1 ?
* 51 - AC Time Overcurrent Relay) a: i& y# _3 Z- H4 E
* 52 - AC Circuit Breaker9 E2 e9 t4 z3 `, W) n
* 53 - Exciter or DC Generator Relay
' J C5 k- [4 o; x+ B& s * 54 - High-Speed DC Circuit Breaker. ?4 b# B. p8 I
* 55 - Power Factor Relay
8 F# K4 m9 S6 h: D" L E * 56 - Field Application Relay1 ?1 E; G" h8 ~0 c# \
* 59 - Overvoltage Relay
( x- s/ y6 S- r5 V Q5 p * 60 - Voltage or Current Balance Relay
& p* ~) A! c: s' { * 61 - Machine Split Phase Current Balance/ P2 Q9 e3 _% X0 H, q6 g# `2 B7 K; Y' K
* 62 - Time-Delay Stopping or Opening Relay* h6 z z' c: p/ q6 v! `
* 63 - Pressure Switch
. a5 {) l" Q ~2 z; C9 ?7 C * 64 - Ground Detector Relay
4 B) d1 c8 v. A * 65 - Governor
5 q; H- i/ O. \. l * 66 - Starts per Hour
) w) ?. H) X' s# F( E/ A7 K7 g * 67 - AC Directional Overcurrent Relay+ U# h* |7 Y& H+ l4 a9 G$ r
* 68 - Blocking Relay
3 ^5 V, I4 p& \# [$ b6 I1 K$ F * 69 - Permissive Control Device
* m! o+ S+ C5 T' _& F * 71 - Level Switch
* q, f: ~) n9 C; W4 ^* d% S * 72 - DC Circuit Breaker# a3 A( l3 d8 u |# j
* 74 - Alarm Relay
' J4 p$ b& e. I; s9 [7 f9 R" P5 D, \ * 75 - Position Changing Mechanism4 T) E. g( U* ^
* 76 - DC Overcurrent Relay
5 z i1 P, \$ l* e' H7 g p; Y3 T * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay" n# }) {$ b. H7 u0 G
* 79 - AC-Reclosing Relay$ p) }" ?5 m8 k& z8 `
* 81 - Frequency Relay; d" c6 r% k+ J3 z z
* 83 - Automatic Selective Control or Transfer Relay, u1 W+ ^* A! Q3 R4 `* u0 a% @
* 84 - Operating Mechanism. Q" _) L. Q4 a# y' ~+ f
* 85 - Carrier or Pilot-Wire Receiver Relay
# Y- n( R9 U2 L+ B * 86 - Lockout Relay
* A3 y1 m! }. {* S) {: L9 O * 87 - Differential Protective Relay# x. Y/ g. `1 P8 C/ [' C6 L0 F
* 89 - Line Switch' O/ W2 C+ {# e# l3 r. _/ y
* 90 - Regulating Device
& R0 D1 z0 f y a( |$ |+ U/ L * 91 - Voltage Directional Relay+ G/ M2 j' ]3 M2 u; s' N
* 92 - Voltage and Power Directional Relay
; p/ U. X* T: q- [ _ * 94 - Tripping or Trip-Free Relay5 z6 `4 O; \$ |1 K1 {1 E
* 95 - Reluctance Torque Synchrocheck0 f z+ Y( w# a$ p/ t+ K, c; L
* 96 - Autoloading Relay |
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