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List of Device Numbers A7 K4 g( z+ c9 s" t
Click to learn more...2 M4 W4 x! I0 C8 H, ~( M
. d# Y3 s1 o6 a/ o9 t * 1 - Master Element, s7 d9 @. s q8 J* g- r
* 2 - Time Delay Starting or Closing Relay
* n! I4 h# \ \1 R( z1 s4 w0 ` * 3 - Checking or Interlocking Relay
1 z4 U9 I/ P; x9 J0 ` * 4 - Master Contactor
$ Q9 ?$ H P$ i, R& v) u * 5 - Stopping Device: B3 C4 L: Y/ H! N; q
* 6 - Starting Circuit Breaker
/ B5 u+ Q) n9 t * 7 - Anode Circuit Breaker
, F: q P5 Z2 Q& ` * 8 - Control Power Disconnecting Device
( C$ [, U O- w3 r# u. L" J# Z& O * 9 - Reversing Device1 A! x$ l% [3 r/ E; k2 E2 ~4 ?
* 10 - Unit Sequence Switch0 b& m1 S( e9 `) y8 @. a+ T
* 12 - Overspeed Device
4 s, e7 n/ c! N I5 D * 13 - Synchronous-speed Device
# Y% D2 _/ X3 J( J * 14 - Underspeed Device
! C. a* e4 X5 m$ J* H4 ^& _9 a * 15 - Speed - or Frequency-Matching Device
1 z& o- I$ ^9 V8 r. `. m9 N * 21 - Distance Relay
2 Z. K; t* x2 z1 p- ? * 23 - Temperature Control Device8 \ Q& _, h3 U, D
* 25 - Synchronizing or Synchronism-Check Device" X6 b+ R v; L# z/ ?9 ]& c
* 26 - Apparatus Thermal Device8 o+ @" V8 ?. }0 H, o4 D0 I
* 27 - Undervoltage Relay
6 `3 T6 e7 U) r |% I * 29 - Isolating Contactor% f- u& i# J/ [5 W, w8 C) S5 @3 a/ O
* 30 - Annunciator Relay
0 a% c+ o# N& E) }/ I+ q * 32 - Directional Power Relay( Q! I- a' K/ U" u6 Z5 V9 q
* 36 - Polarity or Polarizing Voltage Devices
* Z7 w) `1 Q2 N @; k * 37 - Undercurrent or Underpower Relay# d/ r( {9 m. h& z+ U
* 38 - Bearing Protective Device" A2 s- J) u( H
* 39 - Mechanical Conduction Monitor$ n! @! u3 {( M U# c1 ~
* 40 - Field Relay* [# ?" ^6 S, M- y: c
* 41 - Field Circuit Breaker
1 |* K. s% F( } * 42 - Running Circuit Breaker
* H( v/ e- C* j0 c( I, v/ Q * 43 - Manual Transfer or Selector Device
& V2 i% L) d( D, L * 46 - Reverse-phase or Phase-Balance Relay$ L% ~/ z- Y; ]" ~5 D
* 47 - Phase-Sequence Voltage Relay0 n# h# d% p. l5 O
* 48 - Incomplete-Sequence Relay+ j5 s8 X/ y6 a$ U( J
* 49 - Machine or Transformer Thermal Relay5 u# K0 d/ s8 ?3 A
* 50 - Instantaneous Overcurrent9 @0 s& W/ {! A! J9 q" T4 k
* 51 - AC Time Overcurrent Relay
. ^+ J+ z2 k4 Z' C9 E7 V8 T * 52 - AC Circuit Breaker
0 u# t* M* P5 s * 53 - Exciter or DC Generator Relay ?+ {9 _9 S# A( e% S2 r
* 54 - High-Speed DC Circuit Breaker
% g9 B3 _% P7 D% p * 55 - Power Factor Relay
2 v2 H4 n' Y d * 56 - Field Application Relay& ~( b5 a, P1 g0 e$ m% y$ d
* 59 - Overvoltage Relay+ G# u4 B5 ^! ^2 t! v
* 60 - Voltage or Current Balance Relay
\5 y3 w3 D/ S3 j* k5 v * 61 - Machine Split Phase Current Balance& T# V% h4 H; P0 g0 k( k V
* 62 - Time-Delay Stopping or Opening Relay* o6 ?) L8 ^) G$ v* {, y. [
* 63 - Pressure Switch3 _4 I& ]2 b/ p$ [8 I5 h9 _. D
* 64 - Ground Detector Relay
3 l2 ]- n& \9 k; x * 65 - Governor
1 |6 s& g @, w" G1 ^9 D) B * 66 - Starts per Hour, A" w5 G4 \8 G
* 67 - AC Directional Overcurrent Relay
6 I0 P$ n- Y* ?( S8 f * 68 - Blocking Relay
3 @7 P. L- k1 ~. R ^- B9 G * 69 - Permissive Control Device
$ v& T0 q$ y5 I1 |3 \5 C * 71 - Level Switch2 b0 R0 f {% E) a; l# i1 H
* 72 - DC Circuit Breaker0 G5 q5 ]+ v6 B& N- e
* 74 - Alarm Relay5 W- Z) T% S0 _- l1 ?7 w
* 75 - Position Changing Mechanism
/ H& S. D1 Q# F7 I2 t% [ * 76 - DC Overcurrent Relay
2 e! ~- }, O" G5 x: P * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay- z- l& O3 i2 |" A$ p, k) `3 x
* 79 - AC-Reclosing Relay, [- H' T* D- Q" G( }# X o$ ~
* 81 - Frequency Relay
/ [) Z- z6 C6 V: ~ * 83 - Automatic Selective Control or Transfer Relay
$ e. j" Y( f, n7 L9 M6 u' _ * 84 - Operating Mechanism
: c# [, r) B# P" ?3 E * 85 - Carrier or Pilot-Wire Receiver Relay
# o- k) V g' d9 w6 N' r* u * 86 - Lockout Relay
* {6 k5 i" T# V4 x5 k * 87 - Differential Protective Relay
; X( d/ j+ q4 E$ m; z * 89 - Line Switch
$ ~9 N. l, c5 d. t3 I * 90 - Regulating Device
5 M8 G/ U0 _9 x9 r * 91 - Voltage Directional Relay
% W3 P* N/ [: L8 C0 J * 92 - Voltage and Power Directional Relay& e0 q4 `0 D$ ~+ k' K( Z9 Q6 X
* 94 - Tripping or Trip-Free Relay
, `" w7 v# S M U+ ~/ H7 j * 95 - Reluctance Torque Synchrocheck
( m1 E% W" G: X, [0 ?2 G3 F * 96 - Autoloading Relay |
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