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List of Device Numbers
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* 1 - Master Element, c5 C- L0 i9 o0 W6 n
* 2 - Time Delay Starting or Closing Relay) v( h9 k; _6 p
* 3 - Checking or Interlocking Relay
" }7 T3 W, T! m( @9 `! m l. ^ * 4 - Master Contactor7 A( C5 q( r1 N9 u# W2 }
* 5 - Stopping Device
4 Q: C) h; L! V * 6 - Starting Circuit Breaker
8 V6 U) V/ s& V( X * 7 - Anode Circuit Breaker( D, y& f0 M D) Z) p0 T& Z
* 8 - Control Power Disconnecting Device. E2 p2 P6 B2 ~- h$ D# s
* 9 - Reversing Device, c7 E1 ]! l, n5 \9 h% `- C
* 10 - Unit Sequence Switch
; t% v# ?, W, D9 v: U. N7 X5 b0 y# [ * 12 - Overspeed Device
; a4 p3 D+ C! m0 Y; D * 13 - Synchronous-speed Device
, }; b4 s/ S$ l8 }' G V& k * 14 - Underspeed Device. k: @3 T) |/ F# S# h( d4 e
* 15 - Speed - or Frequency-Matching Device
7 l% z7 m. V. ]! [0 u c5 O7 j * 21 - Distance Relay
# ?1 g# }: K/ U( G * 23 - Temperature Control Device- w; w* U3 |' Z
* 25 - Synchronizing or Synchronism-Check Device
. A: r ?* F1 J2 x * 26 - Apparatus Thermal Device
: h# w5 P. ]% e' L( z; u * 27 - Undervoltage Relay
- g8 E% V+ a& N) E * 29 - Isolating Contactor6 [+ T M( B, Z0 F
* 30 - Annunciator Relay
7 T: z4 j6 }, }& M * 32 - Directional Power Relay
) L3 d# q' N% L v( v. r * 36 - Polarity or Polarizing Voltage Devices
. }/ i: n9 x0 `. o. N# C2 r * 37 - Undercurrent or Underpower Relay
/ v" ?2 ?; i# w* S9 ~, q# b * 38 - Bearing Protective Device0 n! t6 c; ^9 n' M2 x; ~, Z M7 a
* 39 - Mechanical Conduction Monitor
' x. d; ^/ m I& g0 X/ \6 H c. P * 40 - Field Relay
+ l, a& w8 Z/ u/ i0 V: j * 41 - Field Circuit Breaker2 J$ M3 l: o7 ?; v
* 42 - Running Circuit Breaker
5 D" _+ S: v) ~$ H * 43 - Manual Transfer or Selector Device4 ~) R( F' ?9 D& G
* 46 - Reverse-phase or Phase-Balance Relay
# T' j* L6 j7 t8 y8 X! d; s8 ` * 47 - Phase-Sequence Voltage Relay
6 K- g- E# V9 l" q * 48 - Incomplete-Sequence Relay( A9 D- V& n! @' b) n, r( J1 B
* 49 - Machine or Transformer Thermal Relay2 u! _6 M* t! O8 w" u2 C6 g' o, g
* 50 - Instantaneous Overcurrent
+ q) \' w7 X5 ?* p! s * 51 - AC Time Overcurrent Relay2 p9 x% d" I. U. X' T- }8 m
* 52 - AC Circuit Breaker3 z' a% ]* K" I/ \) G. |
* 53 - Exciter or DC Generator Relay, z ^4 i3 ^* U" F ]+ g/ B
* 54 - High-Speed DC Circuit Breaker- j7 {+ L5 B r" J, C
* 55 - Power Factor Relay, O2 V6 @4 O! X" a1 Y6 `
* 56 - Field Application Relay; P2 w! i3 v' k( w* \
* 59 - Overvoltage Relay
4 L5 S/ f8 C4 C5 V+ v * 60 - Voltage or Current Balance Relay7 B. S& b) S, E. t8 K7 B
* 61 - Machine Split Phase Current Balance6 i! Q5 c+ D: ]% a
* 62 - Time-Delay Stopping or Opening Relay j0 q: \( }* p& S9 i/ f* w
* 63 - Pressure Switch
4 s3 c) g: M& p7 A, j * 64 - Ground Detector Relay+ @( O( s2 z( L
* 65 - Governor* w6 Z& f% m5 e* f) o2 B. M
* 66 - Starts per Hour. ~8 V7 E1 _ V( {; A( R2 s& V
* 67 - AC Directional Overcurrent Relay
0 ?! l( V8 q4 R3 {' m * 68 - Blocking Relay' X& Z1 R- {6 `9 u/ j7 K
* 69 - Permissive Control Device
! B( H0 t; W0 o4 b4 E2 A. V! @ * 71 - Level Switch
' P0 }5 S, W/ U5 L/ Y; I Y; P2 { * 72 - DC Circuit Breaker$ q& z" w* I, E9 _( Z* C
* 74 - Alarm Relay
) o# B7 m3 k2 i * 75 - Position Changing Mechanism
+ g: r- z; J! ~' B( V * 76 - DC Overcurrent Relay% `1 j3 a. N" `4 t. |: h: g
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
0 R9 r7 C+ h- [% ?( A * 79 - AC-Reclosing Relay) O( K& T# b4 m+ h* H
* 81 - Frequency Relay: C/ {& Q ~* W) X
* 83 - Automatic Selective Control or Transfer Relay) _, v/ O8 s# r3 |4 D- v
* 84 - Operating Mechanism4 K M' X3 ~. ?: _% b8 A
* 85 - Carrier or Pilot-Wire Receiver Relay
, Q% [0 s! s( q6 b; a * 86 - Lockout Relay
% |; y6 ]; {4 n4 U * 87 - Differential Protective Relay! Q+ \! ^. H, Z6 _, z
* 89 - Line Switch( b7 H1 @) L6 X1 A1 w
* 90 - Regulating Device8 Z. l7 W m- D4 q. ^+ w5 p! N& ~
* 91 - Voltage Directional Relay$ z _# Q6 J. u! t( g( p8 D9 q
* 92 - Voltage and Power Directional Relay
4 `) e" `& f" Y * 94 - Tripping or Trip-Free Relay
5 a2 z* Q8 P/ Y+ n' Y * 95 - Reluctance Torque Synchrocheck
! B' ]0 g- z! w1 J0 u * 96 - Autoloading Relay |
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