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List of Device Numbers
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* 1 - Master Element
! }, q' U+ B. `2 m' p7 k * 2 - Time Delay Starting or Closing Relay
+ U; r3 s' w3 T4 _ * 3 - Checking or Interlocking Relay- ]% Q& F1 _$ d+ D1 f4 `% D2 j
* 4 - Master Contactor2 P% A) U0 i$ b% n" `5 p
* 5 - Stopping Device
; `2 ` w, Y2 V' T8 h * 6 - Starting Circuit Breaker
' p/ {2 w* O1 A- Z * 7 - Anode Circuit Breaker
- R! b. o) r* H' w3 e0 w * 8 - Control Power Disconnecting Device
: n8 L' c% l% b: ?2 o * 9 - Reversing Device
6 p# b. D: _) g/ j * 10 - Unit Sequence Switch3 `5 |/ f0 T) w: G* m6 d( b' P" o
* 12 - Overspeed Device
: M9 j" i. [5 C+ u * 13 - Synchronous-speed Device# O* m7 F) H; b) M# c
* 14 - Underspeed Device
' R" [* N* [. l( ~3 x! ?; N * 15 - Speed - or Frequency-Matching Device
! W9 U& e: ^ b( h$ v * 21 - Distance Relay, V4 C) o4 E7 ~; j
* 23 - Temperature Control Device* n! H/ Q- @& i. z
* 25 - Synchronizing or Synchronism-Check Device
% Y; ? d9 I7 t5 C% z * 26 - Apparatus Thermal Device
D5 n0 A% q1 D * 27 - Undervoltage Relay
6 b: T" [) q* f! F. b * 29 - Isolating Contactor% \5 f3 I7 l E
* 30 - Annunciator Relay- A+ h$ I" d) t
* 32 - Directional Power Relay
& u0 B9 H0 q/ ^# J! O- _. z * 36 - Polarity or Polarizing Voltage Devices
/ n* i% S( M* r6 q+ {9 o * 37 - Undercurrent or Underpower Relay
. k' u6 k8 Y$ i' B * 38 - Bearing Protective Device
8 z+ ^, `* L! a: V" \. i. d * 39 - Mechanical Conduction Monitor
4 z% J, N0 t) Y( X6 g$ }& M& T * 40 - Field Relay8 a7 Q$ a, D4 ?7 j# N# Y- c( ~
* 41 - Field Circuit Breaker
4 }+ `! V3 D3 p+ v' B * 42 - Running Circuit Breaker
/ y/ a2 }* k7 z# D+ L * 43 - Manual Transfer or Selector Device
9 y0 R8 A2 H. D4 j; V. s- u! ? * 46 - Reverse-phase or Phase-Balance Relay
1 U4 h% J8 U8 u( A8 z) p( b * 47 - Phase-Sequence Voltage Relay
, [+ @- j2 P3 F$ Q/ i. v * 48 - Incomplete-Sequence Relay
4 g4 K1 n/ K" U$ A8 r5 o * 49 - Machine or Transformer Thermal Relay: h8 @/ z$ V- S* h: g J5 J
* 50 - Instantaneous Overcurrent
# u" O/ N* [* l# }: i * 51 - AC Time Overcurrent Relay
& \, U" X' }/ O * 52 - AC Circuit Breaker2 |" h6 k4 C$ V$ i& J+ {, y* g% J
* 53 - Exciter or DC Generator Relay
7 L5 k5 K2 S0 u8 h- z * 54 - High-Speed DC Circuit Breaker* j/ b4 [, x" _9 S2 R; t O
* 55 - Power Factor Relay
8 }0 Y: x5 [# K0 m# ^/ `3 _ * 56 - Field Application Relay3 h+ n5 u1 \* o
* 59 - Overvoltage Relay E9 m2 X( a& p$ W
* 60 - Voltage or Current Balance Relay) F7 |& Q* G: f, }% P. ?
* 61 - Machine Split Phase Current Balance( s3 \* f0 x& K k4 |1 m% t; g
* 62 - Time-Delay Stopping or Opening Relay
% _+ m7 Z. a0 h, o5 a * 63 - Pressure Switch
: E w! k% `$ ]2 p4 {* y5 n * 64 - Ground Detector Relay3 X# u) _! \0 p; o; ~6 s
* 65 - Governor
( P/ e# v0 l1 E$ M( P * 66 - Starts per Hour
; K; r9 h& e( |1 ` * 67 - AC Directional Overcurrent Relay
) d+ A' h- i5 y, V * 68 - Blocking Relay
. h* }( Y0 X* h- C8 `: R * 69 - Permissive Control Device
7 N" o2 @ ?$ ^' E7 H' D * 71 - Level Switch
" e1 d) G3 W0 `8 `: q2 @4 K; I. Z * 72 - DC Circuit Breaker& [3 C2 L7 s6 ~; y4 `
* 74 - Alarm Relay
! Y- x9 u7 }8 Q4 z3 u7 h2 w, g * 75 - Position Changing Mechanism. G5 k' Y2 N* e$ G
* 76 - DC Overcurrent Relay- I: r: X! ?( l/ `$ B! t
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay& C% T0 w; P6 S' R* }
* 79 - AC-Reclosing Relay
* w6 I" c6 o2 W9 r/ k: x * 81 - Frequency Relay1 f B- V) X+ ^# M# i
* 83 - Automatic Selective Control or Transfer Relay
/ y) X3 d$ \. m7 Q * 84 - Operating Mechanism
. L9 Z l) B7 i+ U/ W5 n * 85 - Carrier or Pilot-Wire Receiver Relay# J( n8 R" W; N& h7 S$ \
* 86 - Lockout Relay
* n4 n8 j# y+ d/ o$ h% X * 87 - Differential Protective Relay" [$ ~# g# J, ^% k: Y
* 89 - Line Switch
! ?" V1 L, Y5 G, t8 K, g * 90 - Regulating Device
! \7 w2 O) N3 ^! \3 E$ s * 91 - Voltage Directional Relay
* c3 n: c- {! ]' F * 92 - Voltage and Power Directional Relay0 d4 B6 f8 ~- }! A/ b. R
* 94 - Tripping or Trip-Free Relay+ S- k, S! x: {/ z3 [) {$ ~: j# t8 C" d
* 95 - Reluctance Torque Synchrocheck
T: u6 Z8 B% A3 ~6 h8 [+ F* y' n * 96 - Autoloading Relay |
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