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List of Device Numbers
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! O! J, D4 f, u- i3 s( o& U, s * 1 - Master Element% c M" V) y# F& [* j
* 2 - Time Delay Starting or Closing Relay
/ l6 }* l @9 B* D# `% ` d * 3 - Checking or Interlocking Relay
2 d- L! T- y( F" D o * 4 - Master Contactor
% k& Q0 s8 i6 s1 D * 5 - Stopping Device
* O# g; U! l6 o+ S% [2 s. y; }& z * 6 - Starting Circuit Breaker8 Q9 i" N2 \% U8 A T2 y6 C* H
* 7 - Anode Circuit Breaker
) _0 {" U1 d; |- t# q * 8 - Control Power Disconnecting Device
/ c! y' y1 Y& A) A" u! n# j * 9 - Reversing Device- _8 ?) Z# V1 ^
* 10 - Unit Sequence Switch
2 w8 J r2 g& [) i * 12 - Overspeed Device5 U+ U- Y0 s( B' V
* 13 - Synchronous-speed Device6 ~5 z( A. f+ Q& g
* 14 - Underspeed Device
, s2 r3 L- i& c' B( m * 15 - Speed - or Frequency-Matching Device
a9 S; k- h7 N4 b u: v * 21 - Distance Relay
( m# Y+ b, k# Y * 23 - Temperature Control Device
* B4 u. f4 ^: A* X2 a5 h [ * 25 - Synchronizing or Synchronism-Check Device% r9 P$ `" s3 o0 H) ]6 j& U# H
* 26 - Apparatus Thermal Device
% J0 `3 I) X- P. [1 j% S7 c4 ] * 27 - Undervoltage Relay
4 F/ [$ K1 x9 w * 29 - Isolating Contactor5 L* }+ Q, B; K" @4 q( ? [4 m
* 30 - Annunciator Relay
0 C: y3 r# E! R9 K * 32 - Directional Power Relay( N" q- B9 j+ U& B [! f# d) r
* 36 - Polarity or Polarizing Voltage Devices2 ]/ C" J2 H* G' R% }6 q
* 37 - Undercurrent or Underpower Relay
, p' O% p* @8 t: r4 Z" E" J" v * 38 - Bearing Protective Device0 u! _# T! j! R+ L: i5 l: {
* 39 - Mechanical Conduction Monitor
0 F @" ~3 o$ q& f }; T * 40 - Field Relay3 w7 g9 E6 R5 B/ [+ N
* 41 - Field Circuit Breaker9 d3 _' r' _; { w" T9 N& y. E
* 42 - Running Circuit Breaker) A+ W# W# o( ^" ?, d
* 43 - Manual Transfer or Selector Device2 D" I T- M$ Y% w" f3 D
* 46 - Reverse-phase or Phase-Balance Relay
& Y% H6 ` c5 t# u * 47 - Phase-Sequence Voltage Relay
* Q- k5 p& Z. t. R* G) @; \$ X# j * 48 - Incomplete-Sequence Relay
0 z3 {! Z1 }/ U- j/ _# x, Y * 49 - Machine or Transformer Thermal Relay
! W8 I. n7 Y- }0 S * 50 - Instantaneous Overcurrent
( |( Y9 B/ D7 S5 _/ C * 51 - AC Time Overcurrent Relay
) D7 L$ D; P3 r4 e! Q * 52 - AC Circuit Breaker$ `' E: F$ w! E' d
* 53 - Exciter or DC Generator Relay
. M2 e3 U8 }: z6 v+ P4 g * 54 - High-Speed DC Circuit Breaker9 h) K9 Y# u5 a- Z9 i
* 55 - Power Factor Relay9 l* G& m3 a! ^/ w4 @, f
* 56 - Field Application Relay
# V" i4 V, _0 f+ h: f9 ` * 59 - Overvoltage Relay- a0 f9 N! G2 B& V
* 60 - Voltage or Current Balance Relay
9 }! s& m& Y8 _ * 61 - Machine Split Phase Current Balance
5 T v, Z _: X$ a% A1 [ * 62 - Time-Delay Stopping or Opening Relay! M1 C: V+ V. ~) b2 v: c$ `
* 63 - Pressure Switch1 T- e. n; j1 u( X' |6 b4 ?
* 64 - Ground Detector Relay7 R3 I3 y0 }1 ^4 Y! m
* 65 - Governor f+ B6 P, K, }# ]) i
* 66 - Starts per Hour
7 j7 N. @0 G" P# v * 67 - AC Directional Overcurrent Relay
8 X U* w- T) H7 V' [1 s * 68 - Blocking Relay" U" i& s+ W% G
* 69 - Permissive Control Device! j/ b5 d" S$ i4 @2 D3 E
* 71 - Level Switch
! }0 ^0 ]6 m: ?6 a * 72 - DC Circuit Breaker
' b* Z; {; @5 O$ w * 74 - Alarm Relay
9 i6 n% j) t! b * 75 - Position Changing Mechanism' {7 D( o: D. \ |5 J# N
* 76 - DC Overcurrent Relay. _& Q8 |/ R/ l
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
( Z+ f5 c3 `0 j: d3 H8 q( x" u: { * 79 - AC-Reclosing Relay8 T% t8 s: g0 q( {5 z) A
* 81 - Frequency Relay
. \7 a4 j. G: B8 R) Q) d * 83 - Automatic Selective Control or Transfer Relay
% F9 I7 k' ~) q, Y3 {. O: D * 84 - Operating Mechanism! p5 t$ z8 u9 b; M, |4 Z% F
* 85 - Carrier or Pilot-Wire Receiver Relay) A; w8 e8 T+ x
* 86 - Lockout Relay, M: D* K+ G; R8 T6 d) q# V; V
* 87 - Differential Protective Relay/ I$ I W) `: L8 E4 y& D
* 89 - Line Switch
8 p# Y: c. f' |8 e. p * 90 - Regulating Device
% C' M# Z( v% ` * 91 - Voltage Directional Relay
; Q, Y' J2 w5 Y5 F* I4 N% i+ x * 92 - Voltage and Power Directional Relay
, z3 H- z& h1 D* v. d& o% W, Y * 94 - Tripping or Trip-Free Relay% V K% R1 n9 K
* 95 - Reluctance Torque Synchrocheck
6 [/ M; D# p# h9 i * 96 - Autoloading Relay |
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