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List of Device Numbers
- _6 e8 F+ M$ G9 p: A& FClick to learn more...3 M+ f: q# c) \6 [% v* m
# _! x2 Z' y& \8 s6 f* d * 1 - Master Element4 L/ d7 d/ L. s& B
* 2 - Time Delay Starting or Closing Relay
1 L& J& d, b8 o3 z * 3 - Checking or Interlocking Relay, T( F2 j7 M% H5 V6 E3 J0 R
* 4 - Master Contactor
% ?. i$ ]0 s7 M * 5 - Stopping Device6 T! g- e7 n/ w
* 6 - Starting Circuit Breaker7 T0 l! v3 z8 q. _1 a7 ^( k1 `
* 7 - Anode Circuit Breaker
9 g+ p/ f% W' p& n * 8 - Control Power Disconnecting Device
4 G) p0 a0 ~5 ]3 {$ ~$ h$ f" S * 9 - Reversing Device7 C b, E g |
* 10 - Unit Sequence Switch
3 {: V$ N7 F, b0 g* e, M3 ~2 \ * 12 - Overspeed Device- ?; u. k0 n0 A6 C
* 13 - Synchronous-speed Device
7 U6 }0 y- S0 [: K5 q; {/ \ * 14 - Underspeed Device( w8 [8 S* o, c) D
* 15 - Speed - or Frequency-Matching Device
/ Y% O9 O0 c: S; e1 P * 21 - Distance Relay
1 X( u) t9 t0 E * 23 - Temperature Control Device
8 ~9 X' d* [8 W+ U5 \0 E * 25 - Synchronizing or Synchronism-Check Device4 i* `7 k3 y. \! C- b
* 26 - Apparatus Thermal Device/ |( m. ^! x, Y( n; @, g7 m( d
* 27 - Undervoltage Relay* ^, R2 j4 q: g/ f; f: Y# ~
* 29 - Isolating Contactor
, I% L9 p/ k, l% I2 @/ ^) l4 V * 30 - Annunciator Relay
/ t1 G: M5 Q0 s+ t& f9 J * 32 - Directional Power Relay
# j: a$ o$ J% W/ I, N4 k% N. ` * 36 - Polarity or Polarizing Voltage Devices8 g- w7 t# u$ o
* 37 - Undercurrent or Underpower Relay
7 _' K8 d5 Z' A8 N * 38 - Bearing Protective Device# M5 J' w! P& G) _" {1 Y
* 39 - Mechanical Conduction Monitor; _7 a6 P8 R' X- I
* 40 - Field Relay
5 j, T1 w& @& h, l3 ]$ K/ p4 O, J * 41 - Field Circuit Breaker* Y) [! f) w; c# L9 x2 N) V# s
* 42 - Running Circuit Breaker, `: X) e1 y; L V- L9 }5 z
* 43 - Manual Transfer or Selector Device
P3 C+ s- t5 E% U( z% H- i# J * 46 - Reverse-phase or Phase-Balance Relay* X7 f! B) J7 o' Z" d# S) x
* 47 - Phase-Sequence Voltage Relay* S: _# o7 S! n! B6 L; a- t
* 48 - Incomplete-Sequence Relay) w6 h) r! z; m/ m
* 49 - Machine or Transformer Thermal Relay
6 c& a8 j, I5 f7 _ * 50 - Instantaneous Overcurrent
$ V: L, i8 }8 @- F; ~) q * 51 - AC Time Overcurrent Relay' Y( y/ I1 B$ [
* 52 - AC Circuit Breaker5 ~) r t% l6 w H
* 53 - Exciter or DC Generator Relay/ ?9 K4 H1 z$ ]9 B2 R+ j
* 54 - High-Speed DC Circuit Breaker
. V2 L' Z& H. F. c( c [ * 55 - Power Factor Relay! l7 B0 {* D' s4 T/ [ r
* 56 - Field Application Relay, w) d' N( d. i; T1 |! ]4 p
* 59 - Overvoltage Relay
& `7 T0 N) E- }- B * 60 - Voltage or Current Balance Relay
5 T7 S: q$ k# T) h- ~, }/ j% ~ * 61 - Machine Split Phase Current Balance t" y! g* N/ l
* 62 - Time-Delay Stopping or Opening Relay) z x! J0 J+ _! ]% a; d
* 63 - Pressure Switch
( C% I& `% P! ~ * 64 - Ground Detector Relay1 U! j# U, y$ n$ t0 u- j8 I
* 65 - Governor
) ?" q, V1 q2 D/ g * 66 - Starts per Hour; s2 h1 M+ F, ]# N: v h: g; q9 C
* 67 - AC Directional Overcurrent Relay o0 `2 v: y, H% @$ b! ?! H O& G t
* 68 - Blocking Relay
7 U! Z% y! ?" g8 E+ G# [ * 69 - Permissive Control Device' q) r9 ^8 a. Y9 a, m
* 71 - Level Switch
+ _1 t5 r8 P3 t( H* P- r * 72 - DC Circuit Breaker3 R$ Z+ S& {! N. b5 W" D' M
* 74 - Alarm Relay
( f R m. e$ {4 F/ b7 P. S. \2 s * 75 - Position Changing Mechanism
2 }9 s4 T- @ n/ q * 76 - DC Overcurrent Relay G; t5 g6 p! c9 b
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay1 `0 G; n) Q! C- p% {$ c# `, s
* 79 - AC-Reclosing Relay9 T/ `2 \0 x, I0 D$ j
* 81 - Frequency Relay
X+ p M* _' k( s% T * 83 - Automatic Selective Control or Transfer Relay
5 C0 X- a0 w: \ * 84 - Operating Mechanism8 P5 L1 q+ R: Z9 Q! r# Y( J
* 85 - Carrier or Pilot-Wire Receiver Relay8 Z; B4 X# u( M8 P
* 86 - Lockout Relay
6 C: S0 z$ f) U * 87 - Differential Protective Relay- E( ?5 u6 l+ z v i
* 89 - Line Switch% @: c/ r9 s2 }1 \) ~
* 90 - Regulating Device
8 `1 t( c! ^. } _- m! S. b * 91 - Voltage Directional Relay
$ t1 S- Z$ g0 T3 j+ I * 92 - Voltage and Power Directional Relay+ c( ^' w; s+ K" A
* 94 - Tripping or Trip-Free Relay
6 f8 q- q3 H$ S5 _+ K! i+ J * 95 - Reluctance Torque Synchrocheck
+ |5 D$ j4 A0 d4 s1 n) j) l1 T * 96 - Autoloading Relay |
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