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List of Device Numbers' a9 L- J1 z& ]+ Z/ n4 _* o" G: O, O
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* 1 - Master Element
5 M5 z) E9 F$ n3 H7 A * 2 - Time Delay Starting or Closing Relay
% y; A! q* i6 N8 \0 y* U, e ^ * 3 - Checking or Interlocking Relay
3 f9 d! }& p0 s: p * 4 - Master Contactor
|) ]& m. P0 d- ~" x3 d* y * 5 - Stopping Device8 L' N4 _1 l, L" v
* 6 - Starting Circuit Breaker+ {6 D$ I, O9 a6 |" E
* 7 - Anode Circuit Breaker* o1 f2 p) v4 l" i& m0 m
* 8 - Control Power Disconnecting Device
) x; W$ @1 I y4 y: L * 9 - Reversing Device
8 z$ V8 F( K F; k4 m; @. S * 10 - Unit Sequence Switch
5 F, i- j5 H" V1 K * 12 - Overspeed Device5 t; q: X( u' K4 C& N
* 13 - Synchronous-speed Device! |, X( b, j! N! S, R m+ ?& _( ?& P
* 14 - Underspeed Device. s( H6 g. ]" ~
* 15 - Speed - or Frequency-Matching Device
, S% ^2 z, r1 ^. C, r * 21 - Distance Relay" c9 f+ w% [2 y$ |% b3 l2 N8 I
* 23 - Temperature Control Device" h* s6 S* h n
* 25 - Synchronizing or Synchronism-Check Device2 v( k3 x( a) D) @ E- P& i
* 26 - Apparatus Thermal Device: p$ v, P, j7 c* X. d
* 27 - Undervoltage Relay
: H) Y, {; ~/ Z, ?$ ` * 29 - Isolating Contactor$ O7 d; w' d8 Z$ n" @8 w- a$ Z
* 30 - Annunciator Relay
2 Y0 t5 Q, h0 _2 ]/ M2 T * 32 - Directional Power Relay& g/ q- j6 O$ X- g% M- \
* 36 - Polarity or Polarizing Voltage Devices6 X; Q; Z6 Z& A% F& M
* 37 - Undercurrent or Underpower Relay
+ S! C3 j' [3 M3 }9 f( e- o * 38 - Bearing Protective Device
' `/ q. L# m B* w/ x# {( j7 H0 J * 39 - Mechanical Conduction Monitor: t& }0 |) u6 B$ O5 A# y
* 40 - Field Relay
% V6 Z; k; U- q7 z6 t% e7 G * 41 - Field Circuit Breaker( x: `' T _- z' S0 P
* 42 - Running Circuit Breaker
6 z* k: y ~# v+ ~3 z8 b; ?& R: e * 43 - Manual Transfer or Selector Device2 l& F' n) X& c6 D
* 46 - Reverse-phase or Phase-Balance Relay/ ^& x" j4 V7 t3 i+ P
* 47 - Phase-Sequence Voltage Relay; v9 {0 e1 k2 H2 \; d/ w/ O: i# o- D
* 48 - Incomplete-Sequence Relay
5 |0 [. a$ n% e! {0 P+ ~' i * 49 - Machine or Transformer Thermal Relay% b/ Z5 j& w6 { s$ V/ M
* 50 - Instantaneous Overcurrent }$ j5 v3 b( Y' a
* 51 - AC Time Overcurrent Relay8 e8 k- G S5 t' q% D0 j( {; b; N
* 52 - AC Circuit Breaker
* B ~+ l* O. S# i( F- w# b * 53 - Exciter or DC Generator Relay: ^' Q$ h! G: b2 v
* 54 - High-Speed DC Circuit Breaker
. _6 u! L9 j7 Y1 ` * 55 - Power Factor Relay
( o2 }$ c/ K9 G. J2 }/ m3 o * 56 - Field Application Relay4 b+ N# ]' f( q. ^2 C, I8 u
* 59 - Overvoltage Relay. Q% `$ Z4 } S0 H
* 60 - Voltage or Current Balance Relay
% ]% l4 A- Y7 y/ Q; T * 61 - Machine Split Phase Current Balance
6 Z3 Q: p/ Z+ L5 U# R- f. q: f( T * 62 - Time-Delay Stopping or Opening Relay
?8 z* U( I- e * 63 - Pressure Switch
. S5 L; k/ D* h * 64 - Ground Detector Relay
5 E# \, ?# } E) x7 W5 S0 ` o# n * 65 - Governor( N8 l( W6 t0 ^* T5 P& D. D
* 66 - Starts per Hour
& h M- }( T3 u- I# T1 r& x * 67 - AC Directional Overcurrent Relay
! k _( @* _0 c' O6 G( j( z5 Z * 68 - Blocking Relay8 c( P' |6 ~$ x
* 69 - Permissive Control Device
6 }0 p' U3 M0 H( w; ] * 71 - Level Switch, y: y k8 Z( V' X- n. K* \* q
* 72 - DC Circuit Breaker
, g6 P) A) e- w * 74 - Alarm Relay
6 @+ S# y6 g/ |' i/ y& w * 75 - Position Changing Mechanism
( n U1 h9 X) |# T: N- M * 76 - DC Overcurrent Relay4 D+ S9 [$ ^& J1 P/ {
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay l6 D) [3 l0 z: t6 Z0 H4 q" X
* 79 - AC-Reclosing Relay* h% q1 R' d' f5 A: u
* 81 - Frequency Relay
: B {8 X, q( v1 M/ h * 83 - Automatic Selective Control or Transfer Relay1 t1 f) t1 Q& w" N2 W
* 84 - Operating Mechanism
) ] s& I6 N0 `0 y% L8 N; t5 z * 85 - Carrier or Pilot-Wire Receiver Relay9 R$ {5 M6 y7 O& M. U
* 86 - Lockout Relay% g/ v7 u. `& ^+ s
* 87 - Differential Protective Relay
4 n, \: _! X) \; s* L * 89 - Line Switch
& `. Y/ |) i p2 \( c * 90 - Regulating Device
( R; h( ^. @1 k g4 S7 h% Z * 91 - Voltage Directional Relay
0 Y* ^" O" v: ^; U6 _, Q * 92 - Voltage and Power Directional Relay
5 E2 P* |: u6 P4 _ P * 94 - Tripping or Trip-Free Relay7 g2 J9 k1 n0 d" K; r( ^
* 95 - Reluctance Torque Synchrocheck3 ^+ x6 u/ ]0 I7 o" t C1 g9 Q7 M
* 96 - Autoloading Relay |
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