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List of Device Numbers
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* V+ x- u% g% {" [ * 1 - Master Element" \3 G( T4 @: C X
* 2 - Time Delay Starting or Closing Relay
' |& H; C; |; r( s6 l F6 Q * 3 - Checking or Interlocking Relay
9 Q: ?# m; V, u' T O * 4 - Master Contactor
! u# p7 r% A9 ]7 g, A% X * 5 - Stopping Device3 e/ r. D: g% B9 k8 z
* 6 - Starting Circuit Breaker
/ S# l2 a% p0 ^ * 7 - Anode Circuit Breaker
* W% H, O1 A& C% Q * 8 - Control Power Disconnecting Device1 m/ d" c% F/ Q5 S9 v0 O. J
* 9 - Reversing Device. ?9 n9 p; W5 d" b4 }. W8 Z
* 10 - Unit Sequence Switch9 T7 }* M9 c' g
* 12 - Overspeed Device' }" o3 B) x0 J/ Y% g# z) k" R
* 13 - Synchronous-speed Device
# L4 v" n( z: l) \ * 14 - Underspeed Device2 p! c* l+ l7 M- d& w R9 i
* 15 - Speed - or Frequency-Matching Device
, u3 n Z4 }& @0 ~9 q. ` * 21 - Distance Relay
& ?) b3 B) R4 K6 S9 C$ X1 i * 23 - Temperature Control Device
1 t# z4 f8 r6 N4 s * 25 - Synchronizing or Synchronism-Check Device% ~) h/ }$ ^8 r+ K- c
* 26 - Apparatus Thermal Device
: r R; e$ y7 v `- y0 H * 27 - Undervoltage Relay
6 K2 {' e' v: [! n( l! { * 29 - Isolating Contactor3 z; A, b8 t$ t% ~
* 30 - Annunciator Relay8 Z" [( U) z1 n3 k: k/ A) `. @, @
* 32 - Directional Power Relay2 s5 W9 B& z" o! y
* 36 - Polarity or Polarizing Voltage Devices
# c% s/ _& G5 z/ I3 [ * 37 - Undercurrent or Underpower Relay! |8 ~' r5 L/ p6 Q
* 38 - Bearing Protective Device
* H5 q2 n( z7 X5 d9 i * 39 - Mechanical Conduction Monitor7 L- ?+ @$ }0 G# |/ }5 S
* 40 - Field Relay
. L l- E- W& t# W) z * 41 - Field Circuit Breaker
( o9 l" I" r& z8 e9 i$ W. f * 42 - Running Circuit Breaker
- d4 Q Y2 _1 d% d/ R& o4 L * 43 - Manual Transfer or Selector Device
7 o8 ^3 k5 d4 C* ` * 46 - Reverse-phase or Phase-Balance Relay
" Y, [# b% f6 v8 l+ c& P, _ * 47 - Phase-Sequence Voltage Relay- V: C: c" k X* U. a, {
* 48 - Incomplete-Sequence Relay
: L& T; F' c X0 T* r- e' }3 u * 49 - Machine or Transformer Thermal Relay
7 h. q; ]4 r4 B) i, Z$ V4 U1 D * 50 - Instantaneous Overcurrent
& M/ T \& z7 j y* H; }- ? * 51 - AC Time Overcurrent Relay
8 n( }- g+ T" u * 52 - AC Circuit Breaker3 |" J& O: L; ~* r: f$ M4 e
* 53 - Exciter or DC Generator Relay, ?5 _8 m. W6 G2 b) q$ J
* 54 - High-Speed DC Circuit Breaker
& F9 O' x3 i8 m) G2 C, j% ^5 ]( t * 55 - Power Factor Relay
: J: w& A) ?6 {+ _9 ? * 56 - Field Application Relay
! i+ x4 t- k4 ^2 R * 59 - Overvoltage Relay2 i. s+ l$ {: k, A$ @: o
* 60 - Voltage or Current Balance Relay
" N, n5 L* o* y5 X3 K8 ^, j3 P' x * 61 - Machine Split Phase Current Balance
5 h4 b9 S* E8 ?. ] * 62 - Time-Delay Stopping or Opening Relay
# D1 I8 O4 J, F) { * 63 - Pressure Switch! Y) k7 M; [( g( S9 ]2 z* Z
* 64 - Ground Detector Relay
8 n1 P4 _( v5 `0 X% w1 |, a * 65 - Governor
7 D+ L+ H. q4 q9 R9 B5 c * 66 - Starts per Hour
; m8 r2 S+ J# ~! o * 67 - AC Directional Overcurrent Relay
' r/ D2 {$ u& I/ O# J- b8 ? * 68 - Blocking Relay
) }2 J. ~5 j" t4 I8 M1 w * 69 - Permissive Control Device4 ^1 i' ~9 I- |5 k6 q; l
* 71 - Level Switch* e5 o7 ?! z4 h- U2 \. [7 z
* 72 - DC Circuit Breaker4 K2 G1 M& @. B' N8 l
* 74 - Alarm Relay1 E2 G: o& Y% u% V5 q
* 75 - Position Changing Mechanism9 Y/ {3 Z. c7 @8 a& G$ D
* 76 - DC Overcurrent Relay
6 H4 ~ h8 \$ N * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
; Q7 {' s3 M6 o5 W# d& a M7 R * 79 - AC-Reclosing Relay
# n' `$ `+ K# B0 B/ \1 L * 81 - Frequency Relay
7 h: N( y7 w# @3 H9 Y% R3 n. y * 83 - Automatic Selective Control or Transfer Relay6 r- R: K5 |) n* `9 Z* C! q
* 84 - Operating Mechanism5 [9 ~9 `$ l# Q8 i
* 85 - Carrier or Pilot-Wire Receiver Relay; G) r; ^4 b! d4 B0 v+ S
* 86 - Lockout Relay' \7 Z% p" @- z# e7 ?
* 87 - Differential Protective Relay& I' o, t! T. `+ n2 K4 |7 R
* 89 - Line Switch
* l/ B# _4 h+ U* j * 90 - Regulating Device
3 G. L& c# Z A: q8 ? * 91 - Voltage Directional Relay5 i8 f9 M. K% p7 Q+ B
* 92 - Voltage and Power Directional Relay; w" [8 @/ Y8 L
* 94 - Tripping or Trip-Free Relay
' Z9 A4 t: G# K% S, T7 m' m' g/ G4 Q * 95 - Reluctance Torque Synchrocheck
: W0 V$ ^4 }3 K( S * 96 - Autoloading Relay |
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