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List of Device Numbers
6 H; J6 x# F4 cClick to learn more...: [# Q6 G) s# ]7 A, S N7 s
3 p6 h# p( V" _ * 1 - Master Element3 J: i- C+ t# B
* 2 - Time Delay Starting or Closing Relay
. `- p4 S% @" p * 3 - Checking or Interlocking Relay
* n- W# X4 m: ]3 u1 ] * 4 - Master Contactor, t1 ]0 r) o1 ]
* 5 - Stopping Device* c1 F& L& B6 s' c
* 6 - Starting Circuit Breaker1 \7 X" b( M9 w- S) ?' P7 y
* 7 - Anode Circuit Breaker
# s/ \# I' Z$ I. E0 r! \ H * 8 - Control Power Disconnecting Device
! |9 Y5 K% M6 `# A9 R * 9 - Reversing Device r, s* u' W1 D) @0 ]/ g* |1 k9 G, Y
* 10 - Unit Sequence Switch
5 Y/ r: p. S) h, y) ^ * 12 - Overspeed Device
4 ]9 p5 d0 K/ e6 ~ * 13 - Synchronous-speed Device
$ B" h9 Y' w4 L* @ * 14 - Underspeed Device# d0 c% I% O$ N A# K* d; t
* 15 - Speed - or Frequency-Matching Device) F; v2 a5 e$ N7 q
* 21 - Distance Relay1 ~) B" F5 n0 K
* 23 - Temperature Control Device
/ j0 [' r; N5 R8 x * 25 - Synchronizing or Synchronism-Check Device5 s6 @6 ~ [4 F3 B ~
* 26 - Apparatus Thermal Device3 [: L( G1 H+ c% {
* 27 - Undervoltage Relay
( O2 A1 F; o: @- @ * 29 - Isolating Contactor
" C( W2 B/ b" i+ m8 n1 ? * 30 - Annunciator Relay
! ~4 {2 ?9 u) Q3 R6 N# p: T# ] * 32 - Directional Power Relay3 K+ K9 X6 G! D" f# R& M
* 36 - Polarity or Polarizing Voltage Devices( _5 L. [3 u% A
* 37 - Undercurrent or Underpower Relay1 g; {8 M# b7 n% s$ ?6 B/ d$ b
* 38 - Bearing Protective Device; J1 }$ u) E" D; Z; M, |
* 39 - Mechanical Conduction Monitor5 {$ v- K3 r- ]7 q3 C3 e
* 40 - Field Relay
: W1 H, `6 Y! d6 C: S8 [7 c * 41 - Field Circuit Breaker
7 U+ U* M% m) q% b ?- \/ r+ ~* q * 42 - Running Circuit Breaker
1 q7 p- {# h' w+ K6 b, m n * 43 - Manual Transfer or Selector Device9 y+ U' z1 O' j" F& i5 N& v& A
* 46 - Reverse-phase or Phase-Balance Relay
4 k; T1 U/ E5 R * 47 - Phase-Sequence Voltage Relay
# u9 g( }2 v" y * 48 - Incomplete-Sequence Relay
% Z# h" ^5 R T% d5 S% I1 I, y I * 49 - Machine or Transformer Thermal Relay
: U" ?! Y9 N/ |! @9 F9 M * 50 - Instantaneous Overcurrent( R6 f$ A/ {3 o# X
* 51 - AC Time Overcurrent Relay2 ]$ m: L# G$ y
* 52 - AC Circuit Breaker
; H% f" f9 G, k7 s! \+ H* c * 53 - Exciter or DC Generator Relay
0 H5 d) @8 P K1 S' c+ N * 54 - High-Speed DC Circuit Breaker
2 v+ Z6 ~, h [) i * 55 - Power Factor Relay
/ r) W0 \. j* x * 56 - Field Application Relay
5 G. d6 I5 { P" o$ F * 59 - Overvoltage Relay' o; K. [& y" c1 S2 z
* 60 - Voltage or Current Balance Relay
+ ~' q+ V/ z8 b. }0 A9 r0 ~ * 61 - Machine Split Phase Current Balance
7 z4 I' ^7 M( b * 62 - Time-Delay Stopping or Opening Relay8 E+ `! M0 \- ]# I; y- d8 U8 b [
* 63 - Pressure Switch
! _- @4 ^0 X& o; B0 v; @ * 64 - Ground Detector Relay
$ n9 @3 U) Z' O" ]6 H * 65 - Governor' r' ?8 B) P- d0 s# I, O1 p" j& ?
* 66 - Starts per Hour
* ^, g5 O3 y u }& | * 67 - AC Directional Overcurrent Relay
5 T7 z' o! W: K! q w$ P * 68 - Blocking Relay! q3 c5 F- i" V C- E, M+ \
* 69 - Permissive Control Device5 e% w) Y+ i& v- k/ ?) o
* 71 - Level Switch
% ]2 n- X8 v8 ^+ w& Z! D * 72 - DC Circuit Breaker: r( Z! [( W4 K, U6 m
* 74 - Alarm Relay
& ^$ j8 N& t, w * 75 - Position Changing Mechanism" b C- L2 i. N F0 U# d
* 76 - DC Overcurrent Relay
4 l% a! s( A# m! x * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay4 E$ ~1 Z4 H% C1 `1 J/ e. D; O
* 79 - AC-Reclosing Relay
6 k9 z& M2 L' G1 N: u- G, q- y5 \ * 81 - Frequency Relay; f7 i: b" ~; V
* 83 - Automatic Selective Control or Transfer Relay
4 ~5 P% ?! f! ]! o! y9 @4 c6 a& } * 84 - Operating Mechanism
# {8 i; J: `" F# D `5 ?" q3 S * 85 - Carrier or Pilot-Wire Receiver Relay
) ]8 j' k8 j! T4 x. N8 A$ v * 86 - Lockout Relay
$ \% ~1 w/ x1 Y6 W+ y% w * 87 - Differential Protective Relay0 H& Z2 H& |* j3 O/ t+ h4 l- d3 k3 ?
* 89 - Line Switch
' _# [- V% X/ a: ]* ] * 90 - Regulating Device6 a- W0 M5 B7 _# p' \! X6 \# j
* 91 - Voltage Directional Relay
8 `/ J1 W1 B( E- P$ I: B * 92 - Voltage and Power Directional Relay
2 ~; u$ q; ^# W! P * 94 - Tripping or Trip-Free Relay3 F9 ~3 R7 z8 I( B6 @
* 95 - Reluctance Torque Synchrocheck
w! |1 y- s6 P g# v * 96 - Autoloading Relay |
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