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List of Device Numbers) ?; X, Z% F% M4 q- v0 q* J% ~
Click to learn more...0 g/ r [1 ]. }9 o5 Q
c4 H/ x2 W _6 P* V * 1 - Master Element) ?$ x- g* Q8 i6 n& d
* 2 - Time Delay Starting or Closing Relay
4 ~" F2 q: S+ k% w2 J * 3 - Checking or Interlocking Relay
1 J2 }" u6 {4 ?' Z1 ` * 4 - Master Contactor1 g9 ]( D o8 _: v) e: `7 E. }) c; c
* 5 - Stopping Device
b9 l1 G, _/ H1 O# I# d * 6 - Starting Circuit Breaker
" q, m6 `: |2 Y4 L! i * 7 - Anode Circuit Breaker
3 R' @) y& F- \, ?" m9 O4 n * 8 - Control Power Disconnecting Device/ C1 m0 H# t6 \$ A
* 9 - Reversing Device6 K# Z+ x/ g/ Q s6 @+ W# `
* 10 - Unit Sequence Switch3 H7 v4 |! {+ L8 |
* 12 - Overspeed Device1 K9 x7 t2 r( I
* 13 - Synchronous-speed Device9 x: r7 Z/ r( u, W7 C |; P! ~* Y
* 14 - Underspeed Device
; d- r1 v0 J; W/ v * 15 - Speed - or Frequency-Matching Device
7 a& S# R7 s! O/ e" a * 21 - Distance Relay: Y8 l, R* X$ F6 ^' j- i5 Q
* 23 - Temperature Control Device
) P% C m: M1 T, G ~ * 25 - Synchronizing or Synchronism-Check Device" I0 ~: V1 l! y; A" d5 O
* 26 - Apparatus Thermal Device
! n5 H# m3 C* e e * 27 - Undervoltage Relay3 C/ D. C4 H4 o
* 29 - Isolating Contactor" A u& q. j+ q+ L. s" G a
* 30 - Annunciator Relay
) m8 H$ S/ s0 {. b9 L. _2 d8 C * 32 - Directional Power Relay
6 J& E$ ]; E e* k* W5 i! i * 36 - Polarity or Polarizing Voltage Devices0 m' ~/ a. O9 \. ^. M
* 37 - Undercurrent or Underpower Relay$ j) U8 }) p2 O, R
* 38 - Bearing Protective Device
1 B7 ~# w S% d; S4 I- }! F5 r * 39 - Mechanical Conduction Monitor7 h4 f& o7 J1 P' b
* 40 - Field Relay* L, d; S8 M8 f" b# g
* 41 - Field Circuit Breaker+ w* k$ T% P" b0 O9 m
* 42 - Running Circuit Breaker
& H1 U# e( Z; B. `2 W- [) t * 43 - Manual Transfer or Selector Device
7 @: H$ v. e3 k! G+ N$ \" f * 46 - Reverse-phase or Phase-Balance Relay! s) K; n7 w3 r( K+ m( v
* 47 - Phase-Sequence Voltage Relay2 f7 r: `0 Z3 c* W; k9 b3 }# {- I4 _
* 48 - Incomplete-Sequence Relay
, n4 Q5 l8 r, X * 49 - Machine or Transformer Thermal Relay2 r" ?9 s ^) }% S5 ^( I
* 50 - Instantaneous Overcurrent; L$ W, L8 l; o0 Q8 _
* 51 - AC Time Overcurrent Relay
/ X, D$ }3 c, H" `8 F [0 s5 M * 52 - AC Circuit Breaker) g' }$ `8 ^; [* f0 ^) S$ y
* 53 - Exciter or DC Generator Relay# k& `- f4 s# h' }; r* T
* 54 - High-Speed DC Circuit Breaker
2 K( b2 d, i2 ~5 q * 55 - Power Factor Relay2 c9 Y2 j& ]6 i
* 56 - Field Application Relay
* }! U" X& e7 o5 y8 _7 n9 Z( v( F * 59 - Overvoltage Relay
+ V7 ?* X+ G4 T5 r3 | * 60 - Voltage or Current Balance Relay7 J* d3 Q9 A1 {9 w( ^' T
* 61 - Machine Split Phase Current Balance
( g3 L D# \+ c% l8 j * 62 - Time-Delay Stopping or Opening Relay% W7 F$ M/ f7 C( e! M
* 63 - Pressure Switch
& e4 G0 Y+ H0 b$ i * 64 - Ground Detector Relay
0 l: @0 B2 f: \+ n @' |) K$ B * 65 - Governor
3 M0 u9 ]/ M- D8 e0 s * 66 - Starts per Hour$ O5 ? p% c r, Y: f
* 67 - AC Directional Overcurrent Relay
1 r0 d) X# B9 F: d; ? X9 A * 68 - Blocking Relay
; G2 m- f/ ^; b3 N% R( q' w * 69 - Permissive Control Device* M- b$ l4 O6 [9 Q
* 71 - Level Switch+ E5 X2 G3 M$ \* S
* 72 - DC Circuit Breaker& A* P) k/ k( _9 [1 k: c% i
* 74 - Alarm Relay
2 ?9 E% v! ?/ W g" {( ~1 x L * 75 - Position Changing Mechanism% l T: e$ T T- J B
* 76 - DC Overcurrent Relay
2 u; p9 Q0 P% [6 X8 J; m * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
' _- t7 l K( _( E * 79 - AC-Reclosing Relay
( C& A* @3 i) F# B- @! G e * 81 - Frequency Relay( m/ F( v& @9 P/ Q# g" ?# w
* 83 - Automatic Selective Control or Transfer Relay$ j, ]) G2 e6 _. u. K% z1 \
* 84 - Operating Mechanism5 M/ |# g* V' J o, u: u
* 85 - Carrier or Pilot-Wire Receiver Relay
1 c4 N ]+ Q/ n& R1 \ * 86 - Lockout Relay3 n$ I _7 E! Q% q
* 87 - Differential Protective Relay
% }/ s# O# H7 J. q * 89 - Line Switch, b; q) m. x6 W& z3 h) ?
* 90 - Regulating Device8 Y# J7 t, `% A" r, f3 ?. y, s' l
* 91 - Voltage Directional Relay
^* b: g/ n& w5 n- r * 92 - Voltage and Power Directional Relay/ J, b; x; {+ h
* 94 - Tripping or Trip-Free Relay
1 r" S* F. Q- Z) v% |+ _% `% P * 95 - Reluctance Torque Synchrocheck0 m$ i: S! a3 B1 u3 A
* 96 - Autoloading Relay |
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