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List of Device Numbers$ V$ o/ `+ m: U, n2 Y5 U- f
Click to learn more... l6 K" l. P$ U
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* 1 - Master Element- K8 \3 Q( f+ B7 Y/ Q* C- M
* 2 - Time Delay Starting or Closing Relay6 c, S) ?1 i. S
* 3 - Checking or Interlocking Relay
. a; C7 m5 Y. [- @! [! m * 4 - Master Contactor
4 Y/ e! j9 W3 m$ G * 5 - Stopping Device
7 |! o+ W+ B" x s* P0 M3 O( A H# w * 6 - Starting Circuit Breaker! l& A0 m5 R2 g
* 7 - Anode Circuit Breaker% z" a; T: h- G
* 8 - Control Power Disconnecting Device* E, J# @1 h) w* S& A
* 9 - Reversing Device, ^' `+ a3 d* }; U% k
* 10 - Unit Sequence Switch2 p8 s V7 X/ d& H
* 12 - Overspeed Device
6 u; U5 G& a) F, B- m ~ * 13 - Synchronous-speed Device
3 J& E" x, v) a8 I, V3 r4 c * 14 - Underspeed Device
' S# E5 A1 p5 k! Q * 15 - Speed - or Frequency-Matching Device' `$ P$ S" k5 z& {* w
* 21 - Distance Relay1 Q% T) v2 M- R2 ]. _) P1 P. Y
* 23 - Temperature Control Device
8 e7 K1 j' B, J# j# ~/ t * 25 - Synchronizing or Synchronism-Check Device4 _/ E4 C) d$ \% u% c' `6 P! G+ ^
* 26 - Apparatus Thermal Device$ E4 `% c. d4 U8 @' _
* 27 - Undervoltage Relay; J7 R" v1 T5 o( E. X4 ?
* 29 - Isolating Contactor
" H: D8 I* w4 z% e( r * 30 - Annunciator Relay
& D0 A& ]* V( L( ? A0 J * 32 - Directional Power Relay
. s) Z+ p) ]# i9 ]' N( c * 36 - Polarity or Polarizing Voltage Devices
4 L3 E9 b4 n5 b% C$ B+ N * 37 - Undercurrent or Underpower Relay" Z1 f- q/ U% f4 I
* 38 - Bearing Protective Device* G: U% e; E$ \1 Q
* 39 - Mechanical Conduction Monitor
. c4 |2 M2 P" O * 40 - Field Relay3 x9 m) y/ P- D
* 41 - Field Circuit Breaker& a0 G5 \ `% j f% r
* 42 - Running Circuit Breaker
# o' f9 @/ ]# D; O) k. C * 43 - Manual Transfer or Selector Device
r( A% U7 e1 u% _) D6 y( c3 s, R * 46 - Reverse-phase or Phase-Balance Relay
9 ?% @) m6 y% ?$ o * 47 - Phase-Sequence Voltage Relay
+ @8 [; k( y% `" H * 48 - Incomplete-Sequence Relay
! x* L& |- W7 E# f: h * 49 - Machine or Transformer Thermal Relay! c# m1 B) e- D% r
* 50 - Instantaneous Overcurrent' h8 L4 N% j1 j8 j0 P0 @* m
* 51 - AC Time Overcurrent Relay
! a7 y, M8 I5 M: P- ? o3 X * 52 - AC Circuit Breaker" |" Z$ H7 _/ O4 d& A8 |
* 53 - Exciter or DC Generator Relay! @; p% c1 T, V% @4 O9 X
* 54 - High-Speed DC Circuit Breaker
( ~4 H) a7 W+ l% N" B" S6 S * 55 - Power Factor Relay- R5 Z) y# O% l3 P" b: _
* 56 - Field Application Relay, [$ n! B# V( r' U% l
* 59 - Overvoltage Relay- I1 p: [" \- l1 _5 S, }
* 60 - Voltage or Current Balance Relay
" W# y! w6 n; V5 |$ v; n1 K * 61 - Machine Split Phase Current Balance
! t+ Z! B. r( Z4 R7 p. f * 62 - Time-Delay Stopping or Opening Relay
7 B6 s* x& Y" t* F) b6 L$ Y * 63 - Pressure Switch
@( J! K0 v6 ^5 ^- q* {8 O2 Y * 64 - Ground Detector Relay
6 I, l0 t9 |0 j- l& [# y! J * 65 - Governor. g; E, r8 _+ Y$ ~: g: y; y
* 66 - Starts per Hour, c |: x( D/ {. c/ J
* 67 - AC Directional Overcurrent Relay
/ f: a. M0 [" ~+ o8 P * 68 - Blocking Relay: p2 A- g% a9 o/ X q9 x# y
* 69 - Permissive Control Device! D; g4 z; c) ~' T
* 71 - Level Switch' Q% c( e- F0 w& n: x; P
* 72 - DC Circuit Breaker9 @+ ^9 ?: t5 @& E' T$ R
* 74 - Alarm Relay
* @* [# C9 P) A8 C * 75 - Position Changing Mechanism+ Y' M2 Q; t& X* b3 E3 S( v( D
* 76 - DC Overcurrent Relay* l5 e; C* J$ y) j
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
& e% i# C1 c* B- P+ S * 79 - AC-Reclosing Relay5 J% N' s7 a) [
* 81 - Frequency Relay
$ B1 ~' c; `0 l9 y3 Q * 83 - Automatic Selective Control or Transfer Relay) f+ h% E9 P: q3 R" z
* 84 - Operating Mechanism
- G' U+ P0 I6 Q * 85 - Carrier or Pilot-Wire Receiver Relay6 @0 }# E. ] ~- _8 p9 P
* 86 - Lockout Relay; R( \/ Y' R& i: E1 i1 m- L
* 87 - Differential Protective Relay0 V \5 u1 {0 W2 _
* 89 - Line Switch
, ~4 \3 Y+ }0 g: C3 n7 c! ?6 l- j" Y * 90 - Regulating Device) M; |1 C- [, T; H
* 91 - Voltage Directional Relay( o& h3 O; ^ |
* 92 - Voltage and Power Directional Relay* i8 _1 M- Z7 `% i: f3 ?7 z
* 94 - Tripping or Trip-Free Relay
+ X" Z3 m$ p: U! S% N7 b * 95 - Reluctance Torque Synchrocheck& n* F8 }$ d* G& k. u( j' N
* 96 - Autoloading Relay |
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