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List of Device Numbers$ |9 q. f* q, A' |1 B' |4 K8 {
Click to learn more...: L& s e' L9 B* F( d. f* O
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* 1 - Master Element4 t$ C/ q% j6 }
* 2 - Time Delay Starting or Closing Relay2 |" I; ~' M. M
* 3 - Checking or Interlocking Relay- b* [. @0 l- a d4 A, n, t6 K
* 4 - Master Contactor
9 u$ r0 e- ^% } * 5 - Stopping Device/ J3 i0 x8 J9 n) x% ~; L5 [8 A# W, |
* 6 - Starting Circuit Breaker
& ?# s' ] S! r3 Q7 M * 7 - Anode Circuit Breaker
j' ?- c9 F, O! y- u * 8 - Control Power Disconnecting Device* E; h' l! M, q- O
* 9 - Reversing Device! Y0 d) q% Q7 z. B8 a. t
* 10 - Unit Sequence Switch' a. X( J0 W, ]# B3 F( G
* 12 - Overspeed Device" R+ F+ J5 E+ A) k2 v: M2 M# V
* 13 - Synchronous-speed Device1 i) o3 k' a4 u9 f1 H" X9 u
* 14 - Underspeed Device2 |2 ]7 k1 k: W/ u* a) l6 i' G
* 15 - Speed - or Frequency-Matching Device
0 t) L6 {, F8 K! T7 ` * 21 - Distance Relay
t8 ]5 b1 }2 Z! U4 k * 23 - Temperature Control Device
% W6 q8 a9 A0 b6 U4 @ * 25 - Synchronizing or Synchronism-Check Device
- j' x) g% c0 D6 M5 k * 26 - Apparatus Thermal Device
# r* k, D" t# n6 ~$ R * 27 - Undervoltage Relay) C/ L# @* p/ h# x+ c5 c
* 29 - Isolating Contactor
, W/ W; Y- f2 H/ L) @1 f! N * 30 - Annunciator Relay
/ Z( v* \: A8 V * 32 - Directional Power Relay5 [8 ^7 z% j+ T1 F. n
* 36 - Polarity or Polarizing Voltage Devices
8 b( q1 |2 d# K: \' g * 37 - Undercurrent or Underpower Relay x6 J8 b8 ]2 @8 R! i& P
* 38 - Bearing Protective Device
8 f" T& F3 k9 V$ }7 S, u5 B * 39 - Mechanical Conduction Monitor9 h6 @* y" z8 w% V
* 40 - Field Relay" \% d: ?+ t* I3 ~
* 41 - Field Circuit Breaker
) q6 }& e$ P/ V) g4 Z I * 42 - Running Circuit Breaker/ g5 h X6 R- A, y
* 43 - Manual Transfer or Selector Device
) L2 C: g# M- o; D * 46 - Reverse-phase or Phase-Balance Relay* r; Q$ }. b$ l1 s% \8 X0 ~) Q
* 47 - Phase-Sequence Voltage Relay* m# l$ B9 R9 Q1 `& ]/ m- v: W
* 48 - Incomplete-Sequence Relay) b0 p: }2 u. W C* M1 y
* 49 - Machine or Transformer Thermal Relay
9 w- C0 A8 g( g! p* _8 i1 q3 ~ * 50 - Instantaneous Overcurrent, T5 L7 F' T* m4 T
* 51 - AC Time Overcurrent Relay
7 e% }) n4 S- F8 E * 52 - AC Circuit Breaker
% `8 o+ L: }% Z7 K$ Z1 b7 p1 c * 53 - Exciter or DC Generator Relay
: I4 |8 Y2 p; t9 }& T8 X: q4 \: b * 54 - High-Speed DC Circuit Breaker
+ N- i, M2 x C) Q2 l6 a * 55 - Power Factor Relay5 k: Y% f2 n# u
* 56 - Field Application Relay/ l1 ^# u5 a/ q" i c
* 59 - Overvoltage Relay
) ^6 }# u M! o, N9 A) I% T7 o8 ^ * 60 - Voltage or Current Balance Relay
' y% ~* I' f2 J A# B5 N$ c * 61 - Machine Split Phase Current Balance9 P* @- I& e# E4 Z- F. j
* 62 - Time-Delay Stopping or Opening Relay! ~* a5 e t6 k2 U6 O
* 63 - Pressure Switch
( j/ o4 \0 f4 P1 U' A * 64 - Ground Detector Relay C& ?" P- @. @3 E) [
* 65 - Governor$ d9 _( X0 v3 g- S9 l) d( k$ G Q
* 66 - Starts per Hour% C3 N. B1 s# `
* 67 - AC Directional Overcurrent Relay# O% C( w7 @& y, M) o
* 68 - Blocking Relay2 r1 ~0 J. W# z+ Q( G' O
* 69 - Permissive Control Device+ J5 b, ?8 f, J
* 71 - Level Switch) n' w4 a8 ^/ n' }' n* G, P
* 72 - DC Circuit Breaker# ]! U- |" u5 A% D0 |0 z' h8 \
* 74 - Alarm Relay
' T; t6 o% S: N# }; q. _' q- h( u * 75 - Position Changing Mechanism! D5 D: M' O( u, I' U( o0 g" }
* 76 - DC Overcurrent Relay' |' f- J- \; I8 @
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
) o, N2 W; D" m; O * 79 - AC-Reclosing Relay
) z3 @( p, r; b$ Z * 81 - Frequency Relay
5 C1 S/ x& Z$ u# U- y& h# { * 83 - Automatic Selective Control or Transfer Relay: a0 q0 x4 U5 {" C3 l2 _/ \. h
* 84 - Operating Mechanism; C- y* I& |) k7 S5 t
* 85 - Carrier or Pilot-Wire Receiver Relay
8 l/ D9 F0 ]$ j% i3 ^ * 86 - Lockout Relay
/ _, L/ O$ w8 }: m' K# D m * 87 - Differential Protective Relay
, N1 m& N& u5 M7 C! d- ?$ q) P * 89 - Line Switch$ z! `. z) C: I/ ~& v/ i. b
* 90 - Regulating Device1 ^, _/ n9 i& H' ]
* 91 - Voltage Directional Relay- G- z! q" W& V- y1 S1 h8 c
* 92 - Voltage and Power Directional Relay, o4 X* Q8 H, l0 |* }# J3 D1 R
* 94 - Tripping or Trip-Free Relay
0 |9 I9 ?& o, {8 W9 F * 95 - Reluctance Torque Synchrocheck% K. Q+ J% P/ h7 @" _
* 96 - Autoloading Relay |
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