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List of Device Numbers
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* 1 - Master Element4 A, e$ K8 w* Z/ F
* 2 - Time Delay Starting or Closing Relay/ o6 b p% C* z( c1 \' E6 q9 W
* 3 - Checking or Interlocking Relay- k! N6 u# s4 k, a' w& ^
* 4 - Master Contactor
/ E8 j1 i1 b% P0 b w * 5 - Stopping Device# S# x P( D* a- B L' |7 d8 n
* 6 - Starting Circuit Breaker
' J% ?# t2 K1 P% {/ }' m * 7 - Anode Circuit Breaker: W& U9 Q9 _2 Z; @1 p! Z7 a
* 8 - Control Power Disconnecting Device
( l I! l, \ M5 a5 a * 9 - Reversing Device& w. @) V% i1 l# k, A
* 10 - Unit Sequence Switch: q, R( W; k) Y0 g% O* s) m
* 12 - Overspeed Device
4 t" x8 g! ]7 t4 B, v6 u * 13 - Synchronous-speed Device7 U2 T/ V, W# f
* 14 - Underspeed Device# b+ q: p2 ^+ G+ T$ i+ f
* 15 - Speed - or Frequency-Matching Device- a0 m: o; y9 F8 P' J3 ~5 x
* 21 - Distance Relay& n v3 H2 f7 {0 q' B6 ~
* 23 - Temperature Control Device' `! z/ {& V5 ~; V5 o0 E4 @6 V
* 25 - Synchronizing or Synchronism-Check Device& S6 }% Q/ y9 N3 A, {0 t! i
* 26 - Apparatus Thermal Device
! [4 A! z$ g( A7 X. V) g( J4 @ * 27 - Undervoltage Relay* ?5 E* M: A ^
* 29 - Isolating Contactor
, K" L: H) _2 f/ M( D * 30 - Annunciator Relay
- V0 F% V* R3 {* n, g- H * 32 - Directional Power Relay
# _) T$ Y8 ]/ f1 C( z * 36 - Polarity or Polarizing Voltage Devices+ E( l( U% c( i2 z
* 37 - Undercurrent or Underpower Relay) L' G8 k& N( ^- m$ [: j& ~
* 38 - Bearing Protective Device
- t! N" D# ]8 a0 G% y: { * 39 - Mechanical Conduction Monitor
* s, B2 b' x( H! z: | * 40 - Field Relay5 w1 t7 N" K" p; i
* 41 - Field Circuit Breaker( E5 y5 d/ o0 v$ R, {3 Z
* 42 - Running Circuit Breaker
7 Y- F8 d# Y4 ]0 v: R/ ^/ J0 l& E * 43 - Manual Transfer or Selector Device
' N8 |# j8 W, J) } * 46 - Reverse-phase or Phase-Balance Relay- i! K) `2 u9 ?: U% l
* 47 - Phase-Sequence Voltage Relay
3 e. T( ^$ w) O# o9 a * 48 - Incomplete-Sequence Relay6 ]* {% Z( B% G! @0 A0 H! @
* 49 - Machine or Transformer Thermal Relay
+ z) t. i- I% W }7 p1 ? * 50 - Instantaneous Overcurrent
( G) [9 I/ [5 j! ? * 51 - AC Time Overcurrent Relay, f* \8 r& [- F" B2 n# w: O
* 52 - AC Circuit Breaker" |, g9 i: S4 |& J" u- N4 I, E% }
* 53 - Exciter or DC Generator Relay1 M8 p4 ], Z- d. [
* 54 - High-Speed DC Circuit Breaker9 ^5 d9 a2 B) X' V
* 55 - Power Factor Relay
; h J2 u( v* C * 56 - Field Application Relay( v# t& ?% {" m) E5 ]
* 59 - Overvoltage Relay
' Y% O, E) n5 ~) L * 60 - Voltage or Current Balance Relay: }9 l! J( R6 y9 g% t3 r
* 61 - Machine Split Phase Current Balance" w" W+ p9 ~8 ]7 y2 N
* 62 - Time-Delay Stopping or Opening Relay( l) v# ^" m8 W
* 63 - Pressure Switch
2 e8 S" [3 H) Q( R) D t' Y# m * 64 - Ground Detector Relay% ^' V4 r3 P7 M7 Y
* 65 - Governor
( c; `1 L6 ~. u * 66 - Starts per Hour
3 [! ~& Y( l5 K5 y4 Y, c2 _. B * 67 - AC Directional Overcurrent Relay
: O/ V0 x- W5 `5 H% d+ V9 W * 68 - Blocking Relay
0 b$ }; J% T! _0 |( T3 V * 69 - Permissive Control Device, i( Q c+ G6 }/ G7 I/ {0 G
* 71 - Level Switch" N/ ^) R& ~3 C/ z5 S
* 72 - DC Circuit Breaker% f0 |8 @# k& D4 q4 Z. a
* 74 - Alarm Relay5 Y# Y n' U7 n; Z4 E( B1 A5 F
* 75 - Position Changing Mechanism4 I6 L4 m0 d( Y @' Q/ b3 V& R
* 76 - DC Overcurrent Relay- Q* H' b& s$ c# d) D
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay: F# P* b J- Z! P$ v3 L: t
* 79 - AC-Reclosing Relay
& O9 Y( [; }1 S& O) j * 81 - Frequency Relay
0 K C, d4 l9 _( b$ s * 83 - Automatic Selective Control or Transfer Relay* W- V/ M6 D+ a4 C- d2 ~
* 84 - Operating Mechanism
/ o: m0 g* ?2 Z7 Q& F2 i K! ` * 85 - Carrier or Pilot-Wire Receiver Relay9 L0 P- v3 O. G$ V# E. O
* 86 - Lockout Relay% s7 p3 |! M, E- T: Q2 @
* 87 - Differential Protective Relay2 l% F- Z- `* O' t& B: d. h
* 89 - Line Switch
& C' U" u/ V) d( p8 Q- u U6 W* Q * 90 - Regulating Device
7 {9 M S% Z+ E! a) ^' } * 91 - Voltage Directional Relay; _1 L* L( @% l9 O
* 92 - Voltage and Power Directional Relay
3 u- p8 m* `! _0 @: _" b * 94 - Tripping or Trip-Free Relay0 A$ j! @ ?0 @! X1 ^, M$ q
* 95 - Reluctance Torque Synchrocheck
9 ~) \1 F3 [8 m. e6 m+ z' O3 V * 96 - Autoloading Relay |
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