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List of Device Numbers
( f" m* N7 {6 f$ Z W$ |+ i8 UClick to learn more...$ R8 I6 L$ N6 O+ _, x3 P
# K0 W: C, Q; o$ M * 1 - Master Element
, D, x+ p' K* Y3 m * 2 - Time Delay Starting or Closing Relay
, }. V' a" g# o3 {& Y/ f * 3 - Checking or Interlocking Relay
* X: _. ~3 o y# [( [9 Y * 4 - Master Contactor
2 L9 y d: _/ X, N! | * 5 - Stopping Device. P/ z7 R$ Y L. \( C% M1 y
* 6 - Starting Circuit Breaker, S/ x' q+ J/ A* C' }- B M* ~3 }1 y
* 7 - Anode Circuit Breaker* N( Y7 `' O% s: k, Q' G4 ]% ^
* 8 - Control Power Disconnecting Device
- J& R. H' l r9 `! b5 j * 9 - Reversing Device
9 |; U b7 g& S' S" X * 10 - Unit Sequence Switch3 z7 g/ m! ]% q1 Q6 q) f# Y) B
* 12 - Overspeed Device. s8 Q- \. P. }1 G0 E; U& ^
* 13 - Synchronous-speed Device
* Y d; L6 T. B- O$ s: X! d4 k9 P3 J * 14 - Underspeed Device
' K" ^( I8 `( m) m8 g, G2 L4 I/ z * 15 - Speed - or Frequency-Matching Device
- Q' B3 Y9 X8 Y' K4 `. M! f$ j * 21 - Distance Relay. z1 b* p8 V5 p
* 23 - Temperature Control Device
9 j- b) E! {3 C" o: |; e * 25 - Synchronizing or Synchronism-Check Device
0 B1 Q% T. @2 H) j4 J' s * 26 - Apparatus Thermal Device
: S& b% [& _6 y6 d7 ~ * 27 - Undervoltage Relay
8 a! i4 X+ u) q1 ? * 29 - Isolating Contactor; K3 [8 c2 ~$ J) W# W# C# c6 R3 h
* 30 - Annunciator Relay9 r' v. k9 C& O f1 }' `2 E( W
* 32 - Directional Power Relay' Q# g! J/ o6 z
* 36 - Polarity or Polarizing Voltage Devices
. @8 l4 _6 _5 R, I; z- R$ n# A; M * 37 - Undercurrent or Underpower Relay9 b# i- q& P8 I# |
* 38 - Bearing Protective Device/ t# J ~' i2 g+ ]6 U5 ?( K" S
* 39 - Mechanical Conduction Monitor
" d# a; S0 T5 [5 n! Q! O * 40 - Field Relay9 P5 V$ z4 W1 x2 n; a% |8 }
* 41 - Field Circuit Breaker
' ?+ b9 v& `5 d9 W8 T6 t: Z * 42 - Running Circuit Breaker
0 I$ z; a/ d; Y6 R3 G2 n# X * 43 - Manual Transfer or Selector Device' C5 K% h. l6 E3 |2 p8 b) V
* 46 - Reverse-phase or Phase-Balance Relay
& T& Q! ?! k( N% l * 47 - Phase-Sequence Voltage Relay
/ @5 |. _# H/ c * 48 - Incomplete-Sequence Relay r% U/ T3 u) O/ B
* 49 - Machine or Transformer Thermal Relay
6 \7 |8 A9 v/ Y/ r `3 Y * 50 - Instantaneous Overcurrent4 R- J+ P$ ^% u+ {0 f" O
* 51 - AC Time Overcurrent Relay0 F6 U, `! w- [7 V8 F
* 52 - AC Circuit Breaker
w# B" {1 ~) e8 g+ Y1 j3 C; j# z * 53 - Exciter or DC Generator Relay
7 g6 a" u2 P& d6 W0 A1 X * 54 - High-Speed DC Circuit Breaker
8 y8 X9 ~! e/ W& l$ i * 55 - Power Factor Relay4 y; j& }3 U, y
* 56 - Field Application Relay
1 O! ?+ D1 f% Z2 M1 [( O6 K9 `6 \ * 59 - Overvoltage Relay
: s# v2 q. o; |% F+ {3 n2 ` * 60 - Voltage or Current Balance Relay) b, T V/ N7 W1 m/ W* ^
* 61 - Machine Split Phase Current Balance
2 U: _1 u/ D8 G! r% J$ F }' C8 l * 62 - Time-Delay Stopping or Opening Relay% P7 V6 F: m0 O* H, `
* 63 - Pressure Switch
' Q' Z. K4 s' ` * 64 - Ground Detector Relay) [/ ~) C, H" F2 O; W0 }
* 65 - Governor
8 [% @ @' L6 `7 z * 66 - Starts per Hour& R* ?* A# _' |2 k& G" C
* 67 - AC Directional Overcurrent Relay
8 A3 a* e% W3 u6 _+ y) q * 68 - Blocking Relay
4 c: }, n4 ]/ m5 }$ _, A" _* U * 69 - Permissive Control Device
m( F3 `5 N2 E * 71 - Level Switch; e+ F9 F0 ~( K, E
* 72 - DC Circuit Breaker- Q, A0 I4 H) @" v, G
* 74 - Alarm Relay
1 K* G: ^- P6 u * 75 - Position Changing Mechanism
) o+ @) q- V) l& J. | * 76 - DC Overcurrent Relay
m! c8 K7 n" j- A. v * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
; D. A/ F: i% F: J- L& s( ^8 T, o3 R. g * 79 - AC-Reclosing Relay
0 Q, e% Y; I, l8 k7 U9 y4 O- V * 81 - Frequency Relay
. n) S, k0 n) E/ F * 83 - Automatic Selective Control or Transfer Relay6 ` W# l) o t+ }) \
* 84 - Operating Mechanism
* G# K- X& o! I+ y& ?( S5 s' A * 85 - Carrier or Pilot-Wire Receiver Relay
}- N3 Z+ p5 B2 w6 f * 86 - Lockout Relay
; U a' c! n6 x * 87 - Differential Protective Relay& K1 [+ S. A" i. S
* 89 - Line Switch! n7 L6 R1 ?+ y' N$ d
* 90 - Regulating Device
* a+ J" Q8 i8 \! B: v5 P6 Z p * 91 - Voltage Directional Relay# `, G8 T( ]+ a. f& j4 ]; b
* 92 - Voltage and Power Directional Relay
" e) W! C+ `( {+ o9 X/ d( p( ] * 94 - Tripping or Trip-Free Relay: A: Z& `1 ]& J# `
* 95 - Reluctance Torque Synchrocheck6 g; C3 u% \: l8 Z% [/ c( M0 [9 x) r& {
* 96 - Autoloading Relay |
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