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List of Device Numbers2 x6 q/ x" g4 C- p
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* 1 - Master Element
: ?4 N6 N/ `! Z u9 V/ r; j- k r * 2 - Time Delay Starting or Closing Relay( \5 ^( q, h. [1 y7 N# g
* 3 - Checking or Interlocking Relay9 G9 R1 ?+ b4 J! f' k. a
* 4 - Master Contactor; B+ q" Z3 q, a6 e8 \
* 5 - Stopping Device
! h8 K& p% u; j' g) A4 G2 c * 6 - Starting Circuit Breaker& r# d/ G2 e5 g4 h+ p8 v5 K
* 7 - Anode Circuit Breaker
7 f% S* Q5 r: Z. @ * 8 - Control Power Disconnecting Device) s' [1 J; s7 |) | N0 d; t, L
* 9 - Reversing Device) x/ o1 M1 k; l
* 10 - Unit Sequence Switch
" E3 D1 Z3 D! S7 _9 o# ^ * 12 - Overspeed Device+ j' L0 r; S2 a+ C, p# B# y
* 13 - Synchronous-speed Device
6 R3 C. c' i6 y; ?7 H * 14 - Underspeed Device# \" T. n9 }* I8 G' F" p
* 15 - Speed - or Frequency-Matching Device& O6 k( ^# P3 u+ N& |
* 21 - Distance Relay( v l! {: Y. D1 z n. v0 p: c
* 23 - Temperature Control Device
4 _. l9 i4 h' y * 25 - Synchronizing or Synchronism-Check Device( ~: ]( w# a$ u. P
* 26 - Apparatus Thermal Device
7 c. P1 G4 f$ R * 27 - Undervoltage Relay m. v+ D! t. N* \- i3 e
* 29 - Isolating Contactor
3 p- H6 n# I: h$ E+ C- q8 Y * 30 - Annunciator Relay7 K4 N K: H! D9 i+ Y0 Y0 m* p, [ K1 d- A
* 32 - Directional Power Relay4 j: {7 p7 L T1 m
* 36 - Polarity or Polarizing Voltage Devices+ O, w. g0 W1 C3 L( C! s
* 37 - Undercurrent or Underpower Relay
1 K+ a: K$ s3 L9 u) G5 i$ H5 j/ l * 38 - Bearing Protective Device( B9 S: A2 h) M2 S
* 39 - Mechanical Conduction Monitor
. y, Z+ A1 Q9 D2 }* ?, t * 40 - Field Relay
& S6 J X2 q8 S * 41 - Field Circuit Breaker! @$ y$ [; p( M% E7 ^2 V. t
* 42 - Running Circuit Breaker
4 s/ m) E0 A) v/ o% Q! r7 K! Y * 43 - Manual Transfer or Selector Device
0 R# } y1 {+ j% h0 \ * 46 - Reverse-phase or Phase-Balance Relay# }! c! R% G m% T
* 47 - Phase-Sequence Voltage Relay: c: y# c; T3 d/ _ K
* 48 - Incomplete-Sequence Relay' f( e8 B/ X! W! o
* 49 - Machine or Transformer Thermal Relay
; W9 M1 t% F9 ^8 O * 50 - Instantaneous Overcurrent3 n9 A' c$ h# C: n
* 51 - AC Time Overcurrent Relay; b: ?+ n/ E- `( Z( U
* 52 - AC Circuit Breaker5 e5 x2 D7 S6 M/ H+ i/ l: d0 r
* 53 - Exciter or DC Generator Relay6 x1 G+ {8 x, P( D. n
* 54 - High-Speed DC Circuit Breaker
. z. `4 r* ^, [6 L6 _2 X. i * 55 - Power Factor Relay
4 x$ f. X% K' y, I2 d% j * 56 - Field Application Relay
! \! n# n6 |; k0 q$ M * 59 - Overvoltage Relay3 g' V7 g+ q2 v; H- ]" y
* 60 - Voltage or Current Balance Relay
" p! d" C2 e4 [8 U8 {( n$ I * 61 - Machine Split Phase Current Balance) E1 J. `- ]6 ]1 g+ g- i% x- m
* 62 - Time-Delay Stopping or Opening Relay/ l$ K% N2 I, w3 ]- Y8 N
* 63 - Pressure Switch
1 d' g* A4 l; A" `* V9 ~4 d( F, s' n * 64 - Ground Detector Relay4 S- Z* ]$ ]9 e
* 65 - Governor
4 w5 I( e! h7 s * 66 - Starts per Hour5 H; L& n7 S' c! |0 v5 C) v; Z" i4 X
* 67 - AC Directional Overcurrent Relay
7 N1 ? ~( {8 q * 68 - Blocking Relay
6 q, D8 r* i7 V5 U( T2 m * 69 - Permissive Control Device9 r) ^2 X% H& e1 S5 c: s
* 71 - Level Switch
7 G: h, o; x3 l( V* f* ?3 B' ~+ w * 72 - DC Circuit Breaker
3 F* k1 {1 D$ Y+ h4 } * 74 - Alarm Relay
0 c* O9 H/ N( {" U$ p- P * 75 - Position Changing Mechanism
* L4 K; w( F7 u * 76 - DC Overcurrent Relay9 ~5 i" K- n6 ]$ j# S
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
0 b! Y0 C8 |9 T * 79 - AC-Reclosing Relay
1 N8 G4 t# o. T; M) o3 @' p * 81 - Frequency Relay
. \5 s' |* B- ?( @' s * 83 - Automatic Selective Control or Transfer Relay
* `# U2 c' A; d# o' z- K3 N * 84 - Operating Mechanism
0 G# [! l% F3 H. Z * 85 - Carrier or Pilot-Wire Receiver Relay
1 V% A2 O- i1 f6 L0 D * 86 - Lockout Relay
, O# S& V- Q; f# ^+ A5 x * 87 - Differential Protective Relay
$ O6 R1 d; m4 k6 C# n2 _: x5 |8 i* q * 89 - Line Switch3 _0 e9 W/ _* K: T6 n+ o# J, O
* 90 - Regulating Device
# {- ] \$ Q% _0 [ * 91 - Voltage Directional Relay
9 n; {4 W$ w8 v4 d6 e: I( |8 F- l A$ I * 92 - Voltage and Power Directional Relay
8 T% i1 O2 Q, b7 r9 F * 94 - Tripping or Trip-Free Relay. P5 R3 R! ?, T
* 95 - Reluctance Torque Synchrocheck2 z$ M Y* b' {, u$ W& [
* 96 - Autoloading Relay |
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