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List of Device Numbers. l- q8 {( k- J( D( W) S
Click to learn more...3 W; Y2 I. ^( k/ h s
5 m5 Q/ L3 y8 G2 F" S; l1 Q * 1 - Master Element8 a1 J0 e8 t1 @9 F0 Y$ d8 T7 o
* 2 - Time Delay Starting or Closing Relay
" p: v7 S2 j& N8 g7 t1 Y M * 3 - Checking or Interlocking Relay
# M: ^) `0 T2 t' O * 4 - Master Contactor
, A' \6 `- f" R5 \. s+ H% n7 N7 y, z * 5 - Stopping Device
3 g6 x# D/ Z, S8 H' {0 R * 6 - Starting Circuit Breaker
' d& M8 _' y B+ P * 7 - Anode Circuit Breaker
! D3 f, P% N9 T: ~ * 8 - Control Power Disconnecting Device: I; w3 M3 Z4 n
* 9 - Reversing Device2 u5 W2 u! s* O, ]
* 10 - Unit Sequence Switch' k# [! N8 ^6 l8 ~
* 12 - Overspeed Device! M7 p9 g8 |" Y* D, g
* 13 - Synchronous-speed Device- V: ^; N9 v: [1 i
* 14 - Underspeed Device( i2 L! z6 m s7 f) D
* 15 - Speed - or Frequency-Matching Device
( a; u7 {2 q/ g! E * 21 - Distance Relay
5 s% z: D" @4 ^" Y$ Q D+ W4 M * 23 - Temperature Control Device$ b0 W8 }; v/ D- m* C# F# e, x
* 25 - Synchronizing or Synchronism-Check Device
' s; X8 f( }" c * 26 - Apparatus Thermal Device C7 q* `9 {" t$ W7 e1 _3 @
* 27 - Undervoltage Relay$ C# J0 W; _" {
* 29 - Isolating Contactor) p B: y3 ?6 j) I+ a' \
* 30 - Annunciator Relay
0 d$ Q3 V# u6 |6 S9 L+ C6 \ * 32 - Directional Power Relay5 j' F x7 V! _! T2 n; }- }: {; C
* 36 - Polarity or Polarizing Voltage Devices
; L2 Y( A* C% s' i * 37 - Undercurrent or Underpower Relay/ \$ r( z$ w# N" s9 Y. W0 _
* 38 - Bearing Protective Device
2 p. @) ~ \* t L) }# q& Q- x * 39 - Mechanical Conduction Monitor" n- u7 b5 z4 h* N( s
* 40 - Field Relay
& g5 U+ w% ?. Z0 _8 G. l * 41 - Field Circuit Breaker) ~& X" [0 {8 F: \& e/ `
* 42 - Running Circuit Breaker( |( r) v9 P* X/ a
* 43 - Manual Transfer or Selector Device
" _( S% q# _2 H! f: H6 Z * 46 - Reverse-phase or Phase-Balance Relay
! a6 ^" \ j! @; L; b * 47 - Phase-Sequence Voltage Relay
: @ D8 L% F& d * 48 - Incomplete-Sequence Relay
# A4 d) L3 i: ?3 N5 e( Z3 N * 49 - Machine or Transformer Thermal Relay1 y, j( C8 p1 ^6 o, I; W
* 50 - Instantaneous Overcurrent) T7 D( s2 T- c
* 51 - AC Time Overcurrent Relay
' }* j- ~0 V2 A9 g9 p Q; f. ? * 52 - AC Circuit Breaker# b# }6 c: }- w/ ?/ I
* 53 - Exciter or DC Generator Relay
4 X0 Y/ k5 F* m( z2 G * 54 - High-Speed DC Circuit Breaker
5 K8 P' r: n4 E% [* D* z * 55 - Power Factor Relay0 v6 U C, ]1 p; B* i0 u
* 56 - Field Application Relay# e3 E7 L5 m6 m/ R# P$ e' {! r
* 59 - Overvoltage Relay
) O* a. _2 s9 {8 J* l2 a) B * 60 - Voltage or Current Balance Relay
( h' X* @- q. b- m * 61 - Machine Split Phase Current Balance. o- w: G( p2 p& q. M7 E& L
* 62 - Time-Delay Stopping or Opening Relay8 Q( U0 Z7 j5 r* d
* 63 - Pressure Switch; | {# o6 E$ a
* 64 - Ground Detector Relay+ c% o6 b% e3 _2 M# B
* 65 - Governor( i8 p4 Q9 Y8 L3 l: Z
* 66 - Starts per Hour3 e. i! _3 O& r$ D2 _
* 67 - AC Directional Overcurrent Relay
6 z6 }; q1 [* @& [/ q9 F * 68 - Blocking Relay. \$ ~2 P n" r2 V' B% [
* 69 - Permissive Control Device
. u. N) W8 O; {7 i) y" N * 71 - Level Switch3 {% V, k- B$ j" @! |, J$ o
* 72 - DC Circuit Breaker6 T d( g% a& W) g
* 74 - Alarm Relay
: b& T3 ~! B+ w& l+ r% R) F u * 75 - Position Changing Mechanism7 Y' G3 p# _* w7 o9 |
* 76 - DC Overcurrent Relay
6 l1 a3 h/ l, e& Q+ C/ x8 N, ` * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
/ ? Q4 M% l. {" m * 79 - AC-Reclosing Relay: w( [1 y9 o$ e: l0 D8 f
* 81 - Frequency Relay
( n7 U$ o, b7 S& `8 X * 83 - Automatic Selective Control or Transfer Relay
* t6 O) ]' V8 w4 j& b+ _$ a) n * 84 - Operating Mechanism. x2 y/ w" B2 @! O
* 85 - Carrier or Pilot-Wire Receiver Relay) t1 E1 u" C( F
* 86 - Lockout Relay( n, @/ o9 Z( R# z- \ G" g3 K% S
* 87 - Differential Protective Relay/ U0 u6 z# m' J4 g8 u* _3 G
* 89 - Line Switch
% M5 R, |! `# E8 a' s3 _ * 90 - Regulating Device3 B1 W, Y' d' B
* 91 - Voltage Directional Relay# n v9 F1 e1 Z' O
* 92 - Voltage and Power Directional Relay5 j2 S5 U4 J! D8 }
* 94 - Tripping or Trip-Free Relay. G G) j e, d- @- m
* 95 - Reluctance Torque Synchrocheck
, h% }( l- C3 S r/ I * 96 - Autoloading Relay |
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