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List of Device Numbers
8 Z( v& w7 M6 }; H" @1 @Click to learn more... Y- t; d M( g& f
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* 1 - Master Element
& W! B. t7 }, h$ \8 q9 D * 2 - Time Delay Starting or Closing Relay
7 R& d+ |( {: P- N! w * 3 - Checking or Interlocking Relay
0 c' \' ?5 {9 z* h* L' _- C1 P * 4 - Master Contactor9 b. O0 R) L5 F. {
* 5 - Stopping Device: W0 t3 i1 `& e* w. d% h
* 6 - Starting Circuit Breaker3 `) y$ a$ }8 M# H: [
* 7 - Anode Circuit Breaker
& \8 c$ a$ n2 i/ P. F! q * 8 - Control Power Disconnecting Device
! {8 \+ o; H4 U2 b& |$ X * 9 - Reversing Device% m+ X( f3 s' Q
* 10 - Unit Sequence Switch( W6 i5 x& O9 M7 f+ P9 R
* 12 - Overspeed Device
5 ?; y0 N, f8 P0 I: A * 13 - Synchronous-speed Device( r# s+ m" U# w4 E
* 14 - Underspeed Device$ [4 G; E: X0 k4 w6 r/ k
* 15 - Speed - or Frequency-Matching Device; ^$ }6 X- O7 E
* 21 - Distance Relay4 n; j* G& M7 P5 O. A2 k
* 23 - Temperature Control Device" K+ B1 \- U* ?4 m" [
* 25 - Synchronizing or Synchronism-Check Device* }% B( N1 E. q! O
* 26 - Apparatus Thermal Device
3 ]; |$ l- q7 X4 T1 L * 27 - Undervoltage Relay
6 L+ P! B" @0 S: d5 q0 a# ]* s * 29 - Isolating Contactor
0 y% H& i" t3 q3 C! c5 R * 30 - Annunciator Relay1 ~8 x' x0 [- Y/ O( ]# N, i" ?
* 32 - Directional Power Relay
$ g* E' q. X7 ]% @) w6 R * 36 - Polarity or Polarizing Voltage Devices# a+ W x$ p$ v
* 37 - Undercurrent or Underpower Relay
+ q- ?* n7 z. e9 @ * 38 - Bearing Protective Device( H2 ^9 a. Y+ F* ?* E0 @! m) x A( H A
* 39 - Mechanical Conduction Monitor
' U6 \& d1 |' l. r6 L1 u: u/ n" H * 40 - Field Relay) L/ I# l/ w$ [, w# m2 k
* 41 - Field Circuit Breaker
! l; H( g! E; h' w * 42 - Running Circuit Breaker
) A+ u! Z' f: N, B, k. r' _ * 43 - Manual Transfer or Selector Device$ \ v$ E l" l$ j
* 46 - Reverse-phase or Phase-Balance Relay
" l" X8 H, r, n+ ?/ ` * 47 - Phase-Sequence Voltage Relay
; {& x9 K5 e" O; T' W; V/ [0 z5 m0 a * 48 - Incomplete-Sequence Relay
: }$ b/ G$ x8 p! _* F. F * 49 - Machine or Transformer Thermal Relay j8 D* C L% l9 w, h
* 50 - Instantaneous Overcurrent
* F4 {* j% f* n! { * 51 - AC Time Overcurrent Relay) t/ q }7 d R3 O4 p
* 52 - AC Circuit Breaker. C* M" a! u' ?/ A, F4 ]3 {
* 53 - Exciter or DC Generator Relay. |; h' r) [/ C8 M+ m$ i/ Z
* 54 - High-Speed DC Circuit Breaker8 a7 V. K4 U2 H9 K
* 55 - Power Factor Relay9 [5 s2 y( O% W H& g
* 56 - Field Application Relay
V8 t7 F% E, D+ q# I, R4 h$ [/ N * 59 - Overvoltage Relay+ @; l, k9 f. x1 l7 E. B
* 60 - Voltage or Current Balance Relay
" ~6 }) ~8 t; b7 k1 Z# ? * 61 - Machine Split Phase Current Balance
/ n4 L9 N3 \% |4 ?3 ] * 62 - Time-Delay Stopping or Opening Relay1 y& a8 f ]/ C( J% ^9 C, B* y
* 63 - Pressure Switch
7 N6 \, F# ~4 U0 [$ {3 t * 64 - Ground Detector Relay3 s+ i6 r7 U$ }) p% B& }1 z
* 65 - Governor! z6 A2 b- y3 P9 R! O& B$ X* _' @, r
* 66 - Starts per Hour. L4 @) E+ m1 H8 r, _
* 67 - AC Directional Overcurrent Relay
8 u. {0 X& G. e2 k: x" J; |& X * 68 - Blocking Relay/ ]; S( e2 d7 P: u5 l! }/ }
* 69 - Permissive Control Device
! e! a* Z* r! Y; F * 71 - Level Switch4 u& g4 D3 B" ?6 K+ k( y
* 72 - DC Circuit Breaker
3 Y3 R8 V2 \( `3 |1 c3 U * 74 - Alarm Relay3 c" _- k3 U: K$ K0 r% z0 Q
* 75 - Position Changing Mechanism
5 r: t |* A' E0 ~7 ~- I * 76 - DC Overcurrent Relay
3 s ?) Z6 c4 A) v U$ @8 `' p * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay# E* d- `+ r' [+ Q' w2 @
* 79 - AC-Reclosing Relay
3 A; Z9 {8 J! V7 p0 X9 F6 M5 T7 \ * 81 - Frequency Relay1 A, K& [* a: C' z! j
* 83 - Automatic Selective Control or Transfer Relay4 b3 Y' Y' o3 F) A, V. \6 K
* 84 - Operating Mechanism
! z" Z+ Z, }% W& M, S * 85 - Carrier or Pilot-Wire Receiver Relay# |$ b+ R3 x/ b) d+ O& f* u
* 86 - Lockout Relay
$ B* y. P1 n$ [. p! L2 ] * 87 - Differential Protective Relay% ~8 i6 |3 _" F) D7 x, i
* 89 - Line Switch
g, F$ n, ~3 E7 g * 90 - Regulating Device& o' Q! }7 [/ b; M( \& N6 p
* 91 - Voltage Directional Relay
( D( i h, c" A; d# U' P6 R* J * 92 - Voltage and Power Directional Relay
4 t0 X" Z9 f: s * 94 - Tripping or Trip-Free Relay
; @- s2 \# f4 m8 R, K7 }1 a * 95 - Reluctance Torque Synchrocheck
7 P' S$ _# d# N. F * 96 - Autoloading Relay |
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