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List of Device Numbers
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* 1 - Master Element
6 K9 j$ P: T3 o * 2 - Time Delay Starting or Closing Relay8 O; P* D2 O. H' U; e- f
* 3 - Checking or Interlocking Relay3 H! g4 h! m0 B9 M. h4 j
* 4 - Master Contactor* i9 @& ?# k1 s& h9 E# b; O6 S
* 5 - Stopping Device7 `2 k+ F8 s3 f+ E1 a* o3 Y
* 6 - Starting Circuit Breaker
) l" F: T/ A: p9 A * 7 - Anode Circuit Breaker- K* X0 F- s& Z) S# z8 |: I! E
* 8 - Control Power Disconnecting Device
( Y9 L/ s1 P1 N/ e * 9 - Reversing Device! D% S5 G6 Z# k% [
* 10 - Unit Sequence Switch
$ F3 T7 h3 ~1 J8 w& c * 12 - Overspeed Device, j3 ^" y: ~' k+ v: G4 j
* 13 - Synchronous-speed Device
4 U/ G) G# n* j t% E1 \' S0 Q * 14 - Underspeed Device1 M3 Q- O. C9 E( ^. u% y! g
* 15 - Speed - or Frequency-Matching Device
' v C: } p/ ~ * 21 - Distance Relay
% s4 { m" Y T8 I * 23 - Temperature Control Device, A, S- F9 G4 X1 x r
* 25 - Synchronizing or Synchronism-Check Device+ l% k0 o# J: T. D3 }2 w4 z1 n
* 26 - Apparatus Thermal Device
& [) \# ]# H8 e! }0 {. O% ~& c * 27 - Undervoltage Relay& }5 `% A5 I9 c, h: ^
* 29 - Isolating Contactor
7 u3 @6 T X6 _) b9 m/ ~8 u * 30 - Annunciator Relay/ ~+ p7 ?/ t& L
* 32 - Directional Power Relay3 \9 l" E$ S" _8 g' S8 \4 w
* 36 - Polarity or Polarizing Voltage Devices8 t" b& G) g/ Q; [# g
* 37 - Undercurrent or Underpower Relay
- ?2 ^! {" @5 h: l3 W3 }. z5 y * 38 - Bearing Protective Device h$ Q1 U. C) i- }
* 39 - Mechanical Conduction Monitor
0 ]% j/ I1 Q4 _/ h' N/ E0 Z9 |- o * 40 - Field Relay( |: ]8 q! o; X; H, Y. h$ P( a
* 41 - Field Circuit Breaker
& Y7 k! g* Q1 y# z9 ?8 D- m8 @$ T. \ * 42 - Running Circuit Breaker
+ X1 i& Q, s* n9 v& E * 43 - Manual Transfer or Selector Device
8 f) c" S q; W! @+ a& m- g0 [ * 46 - Reverse-phase or Phase-Balance Relay9 k: E) H4 Z9 n2 C
* 47 - Phase-Sequence Voltage Relay/ D3 c D5 B+ W
* 48 - Incomplete-Sequence Relay7 s) C7 f2 V1 p0 X9 G g
* 49 - Machine or Transformer Thermal Relay
$ F7 N) l. v- d$ D8 G2 d3 [ * 50 - Instantaneous Overcurrent
0 c) R# C. M O * 51 - AC Time Overcurrent Relay3 j3 ~& I N! [3 L
* 52 - AC Circuit Breaker
6 _" |$ O! p* C * 53 - Exciter or DC Generator Relay
$ H5 N8 Z3 r/ q7 `+ x( g * 54 - High-Speed DC Circuit Breaker$ h5 U9 F9 ]8 k4 ]: d; f
* 55 - Power Factor Relay! ]! T; F" x( W1 s+ W- T. Q8 x2 w
* 56 - Field Application Relay
+ g( X2 x5 o2 [0 G5 s * 59 - Overvoltage Relay' H8 l, T0 `, K8 U _1 q) l3 X
* 60 - Voltage or Current Balance Relay/ [5 d: g: c/ J9 e
* 61 - Machine Split Phase Current Balance# j0 D! T3 @0 ~- G# K. z' m5 {
* 62 - Time-Delay Stopping or Opening Relay* d! N! a# d2 ?* i% }0 Y, i# d
* 63 - Pressure Switch2 ^; [& c* g5 D3 R4 S
* 64 - Ground Detector Relay* ~( a7 H/ i: H5 J, D
* 65 - Governor
7 Y- o+ e1 B: y6 u) @4 Q * 66 - Starts per Hour
+ z, l8 X& d' g' ~" B * 67 - AC Directional Overcurrent Relay4 [/ U. k; i2 L7 |$ G& m* h
* 68 - Blocking Relay
( Q8 Q- k6 U# B; U2 Q, O" n& u * 69 - Permissive Control Device
9 [% M% M3 P! a3 J! j/ W * 71 - Level Switch1 O7 f3 L$ z# Y. A5 b
* 72 - DC Circuit Breaker
% H( ^3 k6 b e2 m, r; D' L" V * 74 - Alarm Relay$ a' K2 m. [7 @! `2 I5 a4 v
* 75 - Position Changing Mechanism$ l: H! ]7 |) M/ Y6 t/ y! _
* 76 - DC Overcurrent Relay
9 P0 [; V Q& j4 R' N4 i * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay, q8 p# N7 v8 X+ i! b
* 79 - AC-Reclosing Relay
: Q2 r7 l& `1 }# e3 b5 h * 81 - Frequency Relay9 P) C' K9 ^+ b( {' i8 `
* 83 - Automatic Selective Control or Transfer Relay5 E3 J3 Y- Z7 B' _# [
* 84 - Operating Mechanism
2 h. M. G1 P% z+ K" L O5 i * 85 - Carrier or Pilot-Wire Receiver Relay5 Y7 v' v: @- p3 k0 l
* 86 - Lockout Relay; S* o, B/ p2 A- x. ~2 Y
* 87 - Differential Protective Relay
/ p1 I: P9 i5 F/ C# w8 D; X. R * 89 - Line Switch$ J+ |+ z( C: ~1 T4 E' ?
* 90 - Regulating Device! @9 g8 H7 I& F* v% `
* 91 - Voltage Directional Relay
% @0 c5 d' t5 @ * 92 - Voltage and Power Directional Relay
; Q/ O+ _, ^0 l2 R& B * 94 - Tripping or Trip-Free Relay
: {! `8 V u) m4 o * 95 - Reluctance Torque Synchrocheck0 m. J4 U- L+ L- W, E' \& M
* 96 - Autoloading Relay |
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