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List of Device Numbers) i: M# L# C0 q. R. w& M' m
Click to learn more...; J% [0 H* J5 Y4 Y6 D" w" A. m
* k2 t2 G7 H0 j+ L * 1 - Master Element! }: H+ j: F8 f& A3 L U* R p
* 2 - Time Delay Starting or Closing Relay
" q; e3 f, M$ O1 b) | * 3 - Checking or Interlocking Relay8 {: Q5 c* S4 [; K* z
* 4 - Master Contactor
% @) J X' a7 @, C) a$ k, g' a' x0 E2 f0 ? * 5 - Stopping Device8 F7 z9 W2 t, k) l, D0 k, w% T
* 6 - Starting Circuit Breaker
7 S- M0 Q* y+ G% q$ Q. p0 d * 7 - Anode Circuit Breaker* n: ?. q& m- j" C
* 8 - Control Power Disconnecting Device
8 V6 v/ D5 I* G; M * 9 - Reversing Device
3 N4 v Z4 D1 R6 a8 W, X' t * 10 - Unit Sequence Switch
0 g& M) c3 |: [; @ * 12 - Overspeed Device) f; a" y8 _8 ? \
* 13 - Synchronous-speed Device. T, V5 }; m P9 T1 W! x. a! M" n h
* 14 - Underspeed Device7 m- R* ~) F1 t1 y
* 15 - Speed - or Frequency-Matching Device0 G9 }6 U' Y: Y' ^9 U2 z
* 21 - Distance Relay: B7 ^6 R: }8 v) Q" v7 x; o6 a, O- Y
* 23 - Temperature Control Device& D' {8 I: o, S3 x: u+ ~+ H
* 25 - Synchronizing or Synchronism-Check Device
; C d7 Y. a, u, r1 a0 q+ ?9 Y5 B+ ] * 26 - Apparatus Thermal Device# Y8 u6 J# e7 `' B( N/ g( H; o! D
* 27 - Undervoltage Relay I' g+ y- m( {2 I9 |9 ~2 L
* 29 - Isolating Contactor5 ?8 Q' p- m8 t! ~& ]3 N* r8 o
* 30 - Annunciator Relay
! o1 Q6 h. J- ~: S2 j& g * 32 - Directional Power Relay
4 t' J0 @' Z9 P x) a4 K) Q * 36 - Polarity or Polarizing Voltage Devices/ x: p8 m4 V* @: J% M
* 37 - Undercurrent or Underpower Relay4 A% _! o; r3 D
* 38 - Bearing Protective Device
! [' m4 L8 O! L1 F* p3 B. F * 39 - Mechanical Conduction Monitor
. l; l6 e+ u0 w! I5 {" @) j * 40 - Field Relay
. J. G, ?4 Q- o, q$ g * 41 - Field Circuit Breaker
6 ~' L' Z# h) I1 Q' [# ?$ X * 42 - Running Circuit Breaker7 f/ F: k, p/ Z: T% }
* 43 - Manual Transfer or Selector Device
! m$ l. X8 k! h4 X * 46 - Reverse-phase or Phase-Balance Relay
5 Z9 F% y3 C8 X9 G * 47 - Phase-Sequence Voltage Relay
: q |+ A9 ^/ m6 V7 v8 q$ |1 v * 48 - Incomplete-Sequence Relay
: z2 t4 I0 v; \+ ? * 49 - Machine or Transformer Thermal Relay
. p3 M' Z0 n7 |7 ~) P6 S' h1 l9 v( b9 a * 50 - Instantaneous Overcurrent6 l- D( t* I" A1 _9 d( z9 u
* 51 - AC Time Overcurrent Relay% d/ z3 U2 Y* {. _: k; v
* 52 - AC Circuit Breaker
1 L: [9 _9 N; [0 b% G' O * 53 - Exciter or DC Generator Relay
0 c% l0 j: b1 n3 z9 w * 54 - High-Speed DC Circuit Breaker8 b" V1 Q# c2 @: D- Z; ~; e
* 55 - Power Factor Relay
% M7 j* O8 A$ ^6 ~$ i& h * 56 - Field Application Relay4 [% H. X% O/ @
* 59 - Overvoltage Relay! x. ~; C5 ]! d( \2 K% f
* 60 - Voltage or Current Balance Relay j# {5 [! E! y9 t7 h( M
* 61 - Machine Split Phase Current Balance: W' g1 U; [0 k0 L) w
* 62 - Time-Delay Stopping or Opening Relay. G% o; {2 Y7 k
* 63 - Pressure Switch6 T; h% [* F. t# P4 [ v# w
* 64 - Ground Detector Relay
, k+ D( j( t* W% k$ B+ x6 ? * 65 - Governor
* c- K8 C5 j6 t" }$ W4 ^ * 66 - Starts per Hour, T* u" C- d- P2 r) A; {
* 67 - AC Directional Overcurrent Relay6 j4 _& T. Y7 y3 X& W0 |6 T# f
* 68 - Blocking Relay
' w" g2 j4 e% z * 69 - Permissive Control Device+ V, q1 w. P0 q: c( ^, \* G
* 71 - Level Switch
9 B' S P0 U9 }; ]! b/ H * 72 - DC Circuit Breaker- A- G& M% W/ x& _: ?. q
* 74 - Alarm Relay
( g" i9 A# d! ~+ t * 75 - Position Changing Mechanism4 ^8 }4 N4 ^/ S& m
* 76 - DC Overcurrent Relay- W. E" z! e) T+ y7 F6 }! Q
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
; m1 J6 C7 _! Y/ `1 h/ p, z8 \ * 79 - AC-Reclosing Relay
+ ~3 I" a1 n3 Z( _6 C1 S( `2 i * 81 - Frequency Relay
; g& J/ n: [, ~' N * 83 - Automatic Selective Control or Transfer Relay$ [: ?7 Y/ q* o8 k" O
* 84 - Operating Mechanism6 m# W2 i ?. @2 L9 c. O# q
* 85 - Carrier or Pilot-Wire Receiver Relay
6 `( C* i3 J# ^$ R5 t! [ * 86 - Lockout Relay
7 L/ n: n7 c) ?& f- F% o9 j8 | * 87 - Differential Protective Relay
7 E% G0 }. q" p2 F# }' S0 q- a' { * 89 - Line Switch6 Y" D {% Q$ A! A2 W
* 90 - Regulating Device* n% b+ e6 m, L6 z
* 91 - Voltage Directional Relay' [$ C- R, h$ s7 c$ C( X
* 92 - Voltage and Power Directional Relay8 o9 v0 ~9 L/ s" M* Q9 q6 k
* 94 - Tripping or Trip-Free Relay/ b# b" B9 G. m5 u1 A
* 95 - Reluctance Torque Synchrocheck2 N" Z6 [! C( E% L) D0 e
* 96 - Autoloading Relay |
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