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List of Device Numbers5 e* ^6 ^! U& X
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$ j" P) N9 J' ? r6 X * 1 - Master Element" L. M( J+ |+ m
* 2 - Time Delay Starting or Closing Relay$ X* V0 }6 N4 f7 `7 @/ F
* 3 - Checking or Interlocking Relay! M5 t [5 Q: a, h. Y! k- u
* 4 - Master Contactor, b! I( m4 y0 ~# T" x- p4 s
* 5 - Stopping Device; r- R4 J6 o4 L
* 6 - Starting Circuit Breaker
% j. z% B$ i, q * 7 - Anode Circuit Breaker* k* k' A- ^# Q7 r3 L
* 8 - Control Power Disconnecting Device& ^& r6 Z! V. k. A* _5 h% @. f
* 9 - Reversing Device
+ T0 A1 v& b5 y5 E8 d8 s * 10 - Unit Sequence Switch8 @# d# y# F% J: K, o( |" n1 j
* 12 - Overspeed Device
3 W; s' C! N( ^" n * 13 - Synchronous-speed Device3 o4 ~- w9 B4 W& j0 h
* 14 - Underspeed Device, T, z f; z/ Z3 @: z: a* W
* 15 - Speed - or Frequency-Matching Device
; e& v& c0 ?* t* {) ]7 f9 g" U# J. I * 21 - Distance Relay
4 ^* Y8 D. ]% K9 k" o9 J * 23 - Temperature Control Device
7 W# E+ \9 ] ^( Q * 25 - Synchronizing or Synchronism-Check Device
@) b- ~5 p; }" Y/ \9 W * 26 - Apparatus Thermal Device+ ?+ f8 ]! z" N" D! N; R- I
* 27 - Undervoltage Relay9 Z1 M3 h" G1 o4 S. |
* 29 - Isolating Contactor% \4 T- g; W4 x8 U4 B) p( `/ [4 i
* 30 - Annunciator Relay
9 H4 F6 ]4 h* w" `; ?& S/ p6 _ * 32 - Directional Power Relay
7 D$ ^2 C, o" R% [+ m9 a, } * 36 - Polarity or Polarizing Voltage Devices
* }; [. s5 W8 {" K4 y3 T( n# g * 37 - Undercurrent or Underpower Relay' R4 b2 s/ J; z, C# _, Z# [& ]
* 38 - Bearing Protective Device
( K& R2 r* k0 z * 39 - Mechanical Conduction Monitor
, p9 [/ O5 i9 b& g+ @7 B4 z! N * 40 - Field Relay
1 t1 l+ n( M( |2 ?& j5 P5 x * 41 - Field Circuit Breaker3 |( p( G6 \4 {7 x S
* 42 - Running Circuit Breaker
6 [. ]- e4 h% P) F4 n * 43 - Manual Transfer or Selector Device
" I* j4 i& |$ {3 S * 46 - Reverse-phase or Phase-Balance Relay# R9 L" `) W3 y* W3 g
* 47 - Phase-Sequence Voltage Relay
, K# }6 C# F7 O) e * 48 - Incomplete-Sequence Relay7 `0 \1 @# |9 g" |* E g; z. z; f
* 49 - Machine or Transformer Thermal Relay
4 D4 C5 z* G! J& ~3 [1 A * 50 - Instantaneous Overcurrent
7 u1 D3 z7 O0 Z. y# Z4 [4 m+ A * 51 - AC Time Overcurrent Relay$ E$ a( o( M& n
* 52 - AC Circuit Breaker% y+ q1 i& c- \9 H
* 53 - Exciter or DC Generator Relay
+ T* Z4 g: \* X" j! n * 54 - High-Speed DC Circuit Breaker
, _: o: U6 @0 g N' G: J( C/ o, P * 55 - Power Factor Relay
[. w7 r6 l! u1 n+ e. e0 U6 n * 56 - Field Application Relay
1 { ?, N! E7 h5 V * 59 - Overvoltage Relay
2 b2 c; Q( u% c, \/ \ * 60 - Voltage or Current Balance Relay
3 |; J! f7 w( q$ o( |3 E * 61 - Machine Split Phase Current Balance
) k; } [8 t+ | * 62 - Time-Delay Stopping or Opening Relay
8 D' l! W! H, c9 ]6 l * 63 - Pressure Switch
, J8 w0 Y: b" ?0 A * 64 - Ground Detector Relay
$ x1 Y% T: w$ ? * 65 - Governor
8 F! T; m- N( x: c * 66 - Starts per Hour0 }4 c7 R' N0 s0 z
* 67 - AC Directional Overcurrent Relay1 C) ?, D' h2 k9 I( |6 S
* 68 - Blocking Relay
/ J1 | b' }* }# M5 H' l- b * 69 - Permissive Control Device q/ r! t8 D, f+ C; y
* 71 - Level Switch
0 i! U2 _4 k! f3 T) D * 72 - DC Circuit Breaker
' v: W7 @' @/ m7 y * 74 - Alarm Relay
. C2 z: D% V# x: ?, M. n * 75 - Position Changing Mechanism
* v7 S, p- d1 C# X * 76 - DC Overcurrent Relay! ]. }8 U# o% u0 I9 U
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
& G- V8 F( }: O9 F3 s * 79 - AC-Reclosing Relay
, {2 d& q( o1 V O * 81 - Frequency Relay4 i- s2 O" V& I6 _5 p2 @$ z( u: u
* 83 - Automatic Selective Control or Transfer Relay
2 a8 ~% i- Z& }6 a7 v( J * 84 - Operating Mechanism
9 F3 q! D! C0 Z2 ~ * 85 - Carrier or Pilot-Wire Receiver Relay& k- R. U) I f& y
* 86 - Lockout Relay
/ M& { w% ]- k) W+ z) F& b * 87 - Differential Protective Relay2 T+ Z- }$ u% {2 t* T) I/ h' _
* 89 - Line Switch
: C9 ]: v1 a$ t3 m * 90 - Regulating Device9 c1 x- g4 g! F( w
* 91 - Voltage Directional Relay
% Z" k0 n5 a& F- m1 x1 C5 Z$ n! u" R * 92 - Voltage and Power Directional Relay
' S; {( }$ g N/ v& H' _1 A4 V5 I* E * 94 - Tripping or Trip-Free Relay+ ~- h, Y2 k" ~3 v9 z
* 95 - Reluctance Torque Synchrocheck
' b4 o9 H- I( B0 j8 J3 d0 y * 96 - Autoloading Relay |
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