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List of Device Numbers
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& D) ~' B# k1 J# X: Y# {1 K, U/ E7 O
* 1 - Master Element
9 F. W$ A4 y, Q4 a! [" U * 2 - Time Delay Starting or Closing Relay
: M" ]' s$ @% o * 3 - Checking or Interlocking Relay, x- O, s/ h* ~' q" u, k/ Q
* 4 - Master Contactor
3 p+ D1 B0 M, {( }& { * 5 - Stopping Device
* K* C4 L1 u. d) O * 6 - Starting Circuit Breaker5 d( v( |3 Z$ c8 ~& L
* 7 - Anode Circuit Breaker
, l: i+ L! y% a( w' w N- h' s * 8 - Control Power Disconnecting Device; q0 K& y8 k! l
* 9 - Reversing Device
, S) B- j0 Z5 v ?* r+ b) o * 10 - Unit Sequence Switch: H+ k. Q: R2 `5 B, Z/ y
* 12 - Overspeed Device/ i. m* u3 h: B" Z
* 13 - Synchronous-speed Device
0 E8 ~, L" H( v0 o- O2 [ * 14 - Underspeed Device& D2 R @: t* T
* 15 - Speed - or Frequency-Matching Device
% |$ N9 u: h. h1 m * 21 - Distance Relay$ W& R) S7 d' h% {6 T" t
* 23 - Temperature Control Device7 y1 w' ^4 P2 N/ t2 R
* 25 - Synchronizing or Synchronism-Check Device# u0 j: ^! K/ i7 H
* 26 - Apparatus Thermal Device. R. K. K. }, ^) h i/ z
* 27 - Undervoltage Relay
8 [% I9 _0 P$ Y. D6 C * 29 - Isolating Contactor6 n+ X# n# b. K
* 30 - Annunciator Relay2 ]8 k: ~. z0 a2 h4 |( f- d
* 32 - Directional Power Relay, j7 O7 H( E, U, q9 r: R
* 36 - Polarity or Polarizing Voltage Devices
+ d* k( R8 C' h3 F * 37 - Undercurrent or Underpower Relay
7 |6 s0 D6 L* m" v; o, Q * 38 - Bearing Protective Device
/ u- @2 T2 N, y4 `" U3 Y/ a * 39 - Mechanical Conduction Monitor9 y: ^/ ?% }8 O9 C: {
* 40 - Field Relay
& _1 j6 `& P1 O7 n: F+ m+ w * 41 - Field Circuit Breaker4 t6 U8 |# c7 R
* 42 - Running Circuit Breaker
+ o. V6 Q) v- i* Z& {& h& B# w * 43 - Manual Transfer or Selector Device4 s3 n, U- S4 O, c- _! c* F! B, d
* 46 - Reverse-phase or Phase-Balance Relay
: h- W4 o( a/ h, _% Y2 L * 47 - Phase-Sequence Voltage Relay
5 Z+ l( C4 A3 s8 G * 48 - Incomplete-Sequence Relay( i: U" P( g5 U2 J+ P
* 49 - Machine or Transformer Thermal Relay; X- Y* q n( a& k- z
* 50 - Instantaneous Overcurrent
. F: Z, V" d1 C * 51 - AC Time Overcurrent Relay
0 H1 e8 \/ M& F. ?. X* g * 52 - AC Circuit Breaker
1 i6 G7 D/ G4 V' B7 v * 53 - Exciter or DC Generator Relay
1 J' i8 \3 B {% ~4 k9 ^ * 54 - High-Speed DC Circuit Breaker
5 b1 s% z& W* T& b" w * 55 - Power Factor Relay. o" @/ d W$ Z+ E' ^7 P
* 56 - Field Application Relay. ?, M3 M/ d$ f( G) `9 d
* 59 - Overvoltage Relay
* j+ c+ Z/ a q) X6 m * 60 - Voltage or Current Balance Relay4 z9 }8 ~& L" L6 h o* A
* 61 - Machine Split Phase Current Balance
2 U' m9 a% F; u/ W * 62 - Time-Delay Stopping or Opening Relay
4 Y" d+ q3 W$ g7 G) D4 ]7 v * 63 - Pressure Switch
! ?; y9 v) l* K( B3 U E" p * 64 - Ground Detector Relay
z7 k- q+ c8 A4 |( J9 R * 65 - Governor
^- H* K0 g" h1 [1 ?; Y8 ]. b+ ] * 66 - Starts per Hour
& X! @' V0 m' D& S8 d6 o4 ?& C * 67 - AC Directional Overcurrent Relay
6 R# A4 c% f. s6 y/ s * 68 - Blocking Relay
1 |# v, m. ]6 C( _' T; z+ ^4 Q8 E& w * 69 - Permissive Control Device
( v: D* y, G' ~8 F6 N * 71 - Level Switch
/ x/ N) h1 M, V+ e! @% e * 72 - DC Circuit Breaker
4 g6 p8 f2 v8 p( O- _ * 74 - Alarm Relay) S, e! |% \/ b% z
* 75 - Position Changing Mechanism& n9 X% T6 G8 V
* 76 - DC Overcurrent Relay0 ]: g: ~& y1 o2 U1 K( H- {$ r
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay: l! Q# ~) Z. I2 X: z3 I5 S" ]/ i
* 79 - AC-Reclosing Relay
+ o& X' |) Q( G' P9 Z/ @3 q8 y1 l7 V, P% p * 81 - Frequency Relay
4 G( M4 ~- j8 P * 83 - Automatic Selective Control or Transfer Relay1 r3 v# W% X' W. Z9 o
* 84 - Operating Mechanism; t' [% C7 a/ R9 H
* 85 - Carrier or Pilot-Wire Receiver Relay( I) O# g! h8 T& i# r# }) [
* 86 - Lockout Relay
: y4 K9 F4 s. c R/ b: s * 87 - Differential Protective Relay8 @! y/ `9 T8 M/ g; v% j- C( D
* 89 - Line Switch
9 _/ h# L0 k7 b7 z) `6 g9 i8 y: d/ U+ ] * 90 - Regulating Device
* v: S; x0 V1 S6 V$ X0 H * 91 - Voltage Directional Relay
+ h& J' h7 r# Y! F * 92 - Voltage and Power Directional Relay
) j3 B5 ]; t5 Z, u( l# } * 94 - Tripping or Trip-Free Relay
* ?8 t; v M7 s$ z( C7 | * 95 - Reluctance Torque Synchrocheck4 r' |' ~. r+ f8 Y$ r
* 96 - Autoloading Relay |
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