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List of Device Numbers: ^2 a& e) ^1 _( ?
Click to learn more.... P/ ]( A B$ e+ e# K" y$ u
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* 1 - Master Element# W6 Z; N9 @, u) ~$ S1 o2 L
* 2 - Time Delay Starting or Closing Relay
" {+ r2 F7 W, d5 Q$ B * 3 - Checking or Interlocking Relay
) I) Z; z8 D% n% b6 {" N; k% R1 e * 4 - Master Contactor
2 w1 w1 W# V( u5 ~* B* L * 5 - Stopping Device; o' v2 m$ {7 t* X$ r
* 6 - Starting Circuit Breaker0 |' `3 N/ g( C) `1 _1 P( U
* 7 - Anode Circuit Breaker: s5 Y+ \4 E4 Z+ a
* 8 - Control Power Disconnecting Device7 L* U5 `" F. e
* 9 - Reversing Device! h! \7 i4 `- p9 i
* 10 - Unit Sequence Switch
4 Y3 w5 U- X6 x3 [ * 12 - Overspeed Device5 a! k$ l9 J0 e$ D% [3 z& ^' X7 f
* 13 - Synchronous-speed Device
+ \* u: L: w) ]# N * 14 - Underspeed Device# v4 r7 X% h2 L' K& r+ q- s& e
* 15 - Speed - or Frequency-Matching Device& C6 G; ~$ p! e8 \2 T f" [% Q
* 21 - Distance Relay
; p' l/ Q! o! C" O% |. W * 23 - Temperature Control Device% `, x. H$ z$ }) |$ L$ F
* 25 - Synchronizing or Synchronism-Check Device
& y. @, q1 `0 G * 26 - Apparatus Thermal Device
& \, k: k# ?4 L2 u) e * 27 - Undervoltage Relay* k* e% z- b( F' n
* 29 - Isolating Contactor% `- \* r5 J2 R
* 30 - Annunciator Relay
2 f4 s7 {' E5 ] * 32 - Directional Power Relay8 K% Z, @+ W* e9 G I( s5 t
* 36 - Polarity or Polarizing Voltage Devices
; h# G E7 e* B6 `7 E1 a * 37 - Undercurrent or Underpower Relay
7 M# ` A9 _& h5 r+ \5 r5 \ * 38 - Bearing Protective Device! U) m. v! g+ H$ N
* 39 - Mechanical Conduction Monitor5 W4 w" n, O) `1 w- W, A4 t
* 40 - Field Relay9 x" @9 e5 X( o$ Z
* 41 - Field Circuit Breaker0 H9 R( A! i8 h4 ^0 G( `
* 42 - Running Circuit Breaker$ p8 `- R) ?, e5 _% H( b( ?
* 43 - Manual Transfer or Selector Device" z) c' [$ V n9 ?' s( f. J
* 46 - Reverse-phase or Phase-Balance Relay- v$ z( `4 D! _6 s9 A
* 47 - Phase-Sequence Voltage Relay
- l8 B5 f. Q9 w1 e * 48 - Incomplete-Sequence Relay4 t! @/ L# W! |, ~8 h6 d9 e, U: ]
* 49 - Machine or Transformer Thermal Relay
( @4 w: w1 @9 a8 w: y* \ * 50 - Instantaneous Overcurrent8 x1 Y5 ^9 X7 L6 r
* 51 - AC Time Overcurrent Relay
0 V+ h1 e% U1 ~; c * 52 - AC Circuit Breaker
0 A/ W. V& A ?% m) Y( f6 q% N * 53 - Exciter or DC Generator Relay1 |5 m. h3 D$ k3 V4 M' ^6 y
* 54 - High-Speed DC Circuit Breaker: v S9 h: _7 _' C
* 55 - Power Factor Relay
5 \1 ]5 t9 t0 m4 j/ R3 {# o) g * 56 - Field Application Relay# `* m5 V& H" o* i
* 59 - Overvoltage Relay
) `: N8 ] v. Y$ Y! k * 60 - Voltage or Current Balance Relay
1 m x$ G2 A2 \! q" t, A! x* z3 g0 ~ * 61 - Machine Split Phase Current Balance
4 j- t( j% b$ j) j5 @7 ~3 k * 62 - Time-Delay Stopping or Opening Relay
% [, x7 j0 [# S* T0 `: c& W * 63 - Pressure Switch+ i/ v; A# X) Q1 C9 v
* 64 - Ground Detector Relay& v- U4 H7 A! s- _5 F8 ]# [
* 65 - Governor" x3 R- c$ H8 a G4 @. S( c+ w
* 66 - Starts per Hour4 @7 D i8 K+ V8 P J. M
* 67 - AC Directional Overcurrent Relay
* O% J0 X6 b3 [4 X2 ^1 F+ R * 68 - Blocking Relay
' N& C1 M/ i9 i$ _( @ k. P * 69 - Permissive Control Device _+ Q. z5 P' u3 i1 ]/ u
* 71 - Level Switch
, }( a1 m% ~) t1 k * 72 - DC Circuit Breaker
. ]8 a4 t: x [7 S1 i# h * 74 - Alarm Relay
9 b1 o' w, ]4 L( d0 g1 Y& v7 c * 75 - Position Changing Mechanism1 ?7 H) L% u+ a: i& k9 Y: m3 t
* 76 - DC Overcurrent Relay7 f+ R9 ?$ Y( b$ j+ l3 Q4 C% |
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
# H9 x& b/ j, d, p( I8 M * 79 - AC-Reclosing Relay
4 {& d3 Y0 E* j * 81 - Frequency Relay& j& _% m: X; ~0 F. [5 Y& J
* 83 - Automatic Selective Control or Transfer Relay6 X b/ g! A0 W5 X. w
* 84 - Operating Mechanism$ V1 M7 C2 \6 g* ^6 K
* 85 - Carrier or Pilot-Wire Receiver Relay
8 S) p' Q( `0 G% d% q+ ?* X$ q, ~ * 86 - Lockout Relay! ?$ {: Y7 s. R8 A) U) g4 i
* 87 - Differential Protective Relay
4 T% O! U; j7 B7 \& ~ * 89 - Line Switch
; g5 ^. Q' |) `7 R* R- \0 n * 90 - Regulating Device
( o) b4 V/ x, I$ p: M* w * 91 - Voltage Directional Relay3 S3 }# D: ~) \% P( d1 C$ |
* 92 - Voltage and Power Directional Relay
: P: r- p# p0 j- Z/ G$ q * 94 - Tripping or Trip-Free Relay
5 _; E6 I7 \5 k2 {( k, R( s * 95 - Reluctance Torque Synchrocheck8 ? J6 Z4 [4 R3 m) q
* 96 - Autoloading Relay |
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