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List of Device Numbers
7 \/ \; I% D2 O6 ?6 zClick to learn more...- e. Q7 x4 C4 e1 W8 L
' T& Q. E, h' p+ w * 1 - Master Element
5 Q1 |) k' O) c' d9 d/ F! _ * 2 - Time Delay Starting or Closing Relay+ l3 ^8 }2 Y9 G7 _8 E
* 3 - Checking or Interlocking Relay* n7 ^ b* \5 S9 \% u
* 4 - Master Contactor
" t X9 u i8 s) H1 }7 I% f. _5 D * 5 - Stopping Device
, |. l: ?; E2 y( z9 Z. p2 j * 6 - Starting Circuit Breaker
3 H; ~( g i' y4 A9 Q * 7 - Anode Circuit Breaker( L5 w/ a Q8 ^) Y/ ?' [
* 8 - Control Power Disconnecting Device
, A' k4 b( N+ c& T * 9 - Reversing Device: u2 u4 P, V) E* Q5 z; a4 Z
* 10 - Unit Sequence Switch
2 q9 K9 T, i5 S* w M1 K& G * 12 - Overspeed Device
( i" Q& j( q. W3 G7 e% z3 [ * 13 - Synchronous-speed Device
+ H1 D! Y0 o2 A( n * 14 - Underspeed Device
. }, }. {, x. F. H; ]0 B; ^0 t * 15 - Speed - or Frequency-Matching Device: b- w$ R$ _! j
* 21 - Distance Relay
$ z! s2 J+ H2 d2 H9 q; E * 23 - Temperature Control Device
; b1 k, o" v2 J/ P/ q * 25 - Synchronizing or Synchronism-Check Device8 f2 W, p. K* }& a2 D
* 26 - Apparatus Thermal Device! P4 j( M3 ]% I5 |' W1 w- @; V
* 27 - Undervoltage Relay
( F! H+ C! A5 ^# f/ t * 29 - Isolating Contactor0 {1 r) N) ]/ I
* 30 - Annunciator Relay- s2 R" W8 K$ K) `6 q- S
* 32 - Directional Power Relay
# n' q2 E# z, G. d * 36 - Polarity or Polarizing Voltage Devices( r6 W8 N$ P/ p
* 37 - Undercurrent or Underpower Relay
0 m5 ]9 s6 t2 @, r% O, F/ i * 38 - Bearing Protective Device
, r8 Y* S2 @ c6 |' O+ q * 39 - Mechanical Conduction Monitor: B; u: O1 W9 s/ B8 e/ W
* 40 - Field Relay
2 [4 R$ t$ U. ^, H8 f2 F/ O * 41 - Field Circuit Breaker! B; Y" f/ e5 V# L& G! l
* 42 - Running Circuit Breaker2 q" g6 [7 s2 [( H8 g
* 43 - Manual Transfer or Selector Device
* d+ }1 m( g: C5 n) p * 46 - Reverse-phase or Phase-Balance Relay8 A6 j- i$ i# o/ c3 X
* 47 - Phase-Sequence Voltage Relay- e) ^! g0 P! M: T. J4 D
* 48 - Incomplete-Sequence Relay
# B1 A Q0 z) E: J! r' X& p8 u5 ^ * 49 - Machine or Transformer Thermal Relay
/ m( M' `: a* q7 r: u( V3 @ * 50 - Instantaneous Overcurrent
- K. J" r* n+ b0 \! e * 51 - AC Time Overcurrent Relay
0 m5 F6 z7 d1 `9 w$ @ * 52 - AC Circuit Breaker& v- C! V: i2 D& a ]% D% v0 ]% a6 B
* 53 - Exciter or DC Generator Relay# ~& s$ [$ p2 j4 Y. E: H
* 54 - High-Speed DC Circuit Breaker
/ t# P4 V, U8 v) O$ [# l+ k5 i# d9 L * 55 - Power Factor Relay
3 c# d& n) p! W }% ~$ _ * 56 - Field Application Relay$ k0 I0 c# r4 G Q9 P
* 59 - Overvoltage Relay
1 y# B( c+ ?& D* W! \* ~. q1 { * 60 - Voltage or Current Balance Relay% y7 p$ k) | `
* 61 - Machine Split Phase Current Balance
7 J# L# E. O3 G' ~( C. l( d; x * 62 - Time-Delay Stopping or Opening Relay
" m+ {8 u O! Q- Q * 63 - Pressure Switch
$ u) s: ?; a5 b3 u5 \' e @" _ * 64 - Ground Detector Relay+ s4 C1 A% m Z9 T9 b, b& O M
* 65 - Governor5 l7 ?+ f2 c6 }
* 66 - Starts per Hour
' e2 t' b. W! [7 H% n3 i. D * 67 - AC Directional Overcurrent Relay4 H( m' {+ S& w% i* E4 C
* 68 - Blocking Relay
0 Y$ p5 F) B% u) r* u * 69 - Permissive Control Device
& [) E( @% r1 U * 71 - Level Switch
- O5 K8 A e1 D7 \2 Z# I) d * 72 - DC Circuit Breaker) U. L" N; Q9 Y" Y) G4 Y p5 \
* 74 - Alarm Relay% ~4 }6 e3 ^% \( Q& c
* 75 - Position Changing Mechanism& Z6 H1 [$ L. z. _
* 76 - DC Overcurrent Relay* Y' Q$ C% S) ^) F) c6 ^" a+ ~1 }0 _# ^
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay! _; ^7 `; V! C+ u. I8 u+ {
* 79 - AC-Reclosing Relay
9 e" z7 y& p, @4 j * 81 - Frequency Relay. k d+ y& a8 K9 |1 O/ P/ U
* 83 - Automatic Selective Control or Transfer Relay N3 U3 ]' J u
* 84 - Operating Mechanism" m% o, q2 c; [
* 85 - Carrier or Pilot-Wire Receiver Relay9 a- Q3 D0 D/ U8 B& m
* 86 - Lockout Relay
; C& E4 ^& B$ p1 J/ ^* D6 v * 87 - Differential Protective Relay
' z% z; c' I* [7 ?- Z/ j2 |' S * 89 - Line Switch& _! h6 h& y: B% R' u* y
* 90 - Regulating Device$ U7 w3 T6 a7 L, [3 U6 B
* 91 - Voltage Directional Relay
7 O' v2 |# J8 p) | * 92 - Voltage and Power Directional Relay4 T- S. X: N, T8 }; y. ?
* 94 - Tripping or Trip-Free Relay
2 Z0 z( ]3 A5 Z7 V) m* Q4 _. Q* S. R * 95 - Reluctance Torque Synchrocheck
( i/ w' E3 b: J* j * 96 - Autoloading Relay |
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