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List of Device Numbers
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* 1 - Master Element% d$ I# e) Q# Y' e9 [, D
* 2 - Time Delay Starting or Closing Relay
( S, P: m# i. V9 c * 3 - Checking or Interlocking Relay
2 Q; o& e* i; w/ ~; Q& Y0 l. B * 4 - Master Contactor
5 ]& I$ D: Q5 u8 x+ \$ o# p * 5 - Stopping Device3 @/ V3 Y% n, \5 R% T& y
* 6 - Starting Circuit Breaker
2 C6 L; J. N6 q# [0 H% G% S * 7 - Anode Circuit Breaker
& h5 i; {9 R% H4 e/ n4 s * 8 - Control Power Disconnecting Device; y# y( y( j, w. S4 b% }( @
* 9 - Reversing Device
8 z) v0 V- ?% [- \. [ * 10 - Unit Sequence Switch
$ r$ d; }: o: q' z' _0 J+ ` * 12 - Overspeed Device
, ? H8 U1 @3 _7 d * 13 - Synchronous-speed Device+ J" o) h" M! c+ ^" R5 Y
* 14 - Underspeed Device k3 V( h1 @ a. N
* 15 - Speed - or Frequency-Matching Device
+ O! i: y; i1 [" j, O. g Q * 21 - Distance Relay
" N8 T) D3 B/ t( k) { * 23 - Temperature Control Device- n2 p2 S( Y5 T& j% @* S' f
* 25 - Synchronizing or Synchronism-Check Device( ~& \6 M0 f1 Z u2 @
* 26 - Apparatus Thermal Device/ O( t* F1 _- K
* 27 - Undervoltage Relay
: Y. y3 b x1 C, Q2 a Q7 ~ * 29 - Isolating Contactor
4 f. X8 ?1 u4 _8 \1 |8 p * 30 - Annunciator Relay+ v: H+ Y2 D( \* A+ G! G
* 32 - Directional Power Relay1 v' Y1 Y. h9 _ M
* 36 - Polarity or Polarizing Voltage Devices
6 `% R4 h) I1 ~2 \" H, o * 37 - Undercurrent or Underpower Relay
" H4 d0 `5 @! z4 {5 j * 38 - Bearing Protective Device. L" r$ J& [/ f
* 39 - Mechanical Conduction Monitor
. _6 v( g, ~2 a+ a4 D * 40 - Field Relay( U% M3 c! Y9 A1 }- h1 X. m
* 41 - Field Circuit Breaker4 |, B: _; \3 ^9 @9 }7 D
* 42 - Running Circuit Breaker! b# x( x& Q- D) J
* 43 - Manual Transfer or Selector Device
$ G7 q U ^6 p+ P" ` * 46 - Reverse-phase or Phase-Balance Relay
& J% i( r9 \4 k; T7 h' f% M& k+ K * 47 - Phase-Sequence Voltage Relay6 @4 d6 q k; U2 _
* 48 - Incomplete-Sequence Relay, b3 P. r- T; O
* 49 - Machine or Transformer Thermal Relay6 Y5 w9 z8 H3 j! f$ `
* 50 - Instantaneous Overcurrent
$ Z7 f4 M7 g" @+ Q+ Z, X. R * 51 - AC Time Overcurrent Relay
* h, K9 e7 }) ~ * 52 - AC Circuit Breaker
% w# H4 T0 R3 Q1 S$ N5 |/ b * 53 - Exciter or DC Generator Relay
' \- I7 l$ ?0 U9 w" [5 b$ q * 54 - High-Speed DC Circuit Breaker. l+ r: N0 z* o# N% d
* 55 - Power Factor Relay
+ G' S+ _5 _$ }" \3 S% r& T * 56 - Field Application Relay
% G* @/ @6 M! M. { g9 U5 c * 59 - Overvoltage Relay
) ]4 I' e" ], q: Q& D * 60 - Voltage or Current Balance Relay
+ R$ L. Z6 s4 q) q& K * 61 - Machine Split Phase Current Balance& R4 O( \0 J& n- H* v$ G" y
* 62 - Time-Delay Stopping or Opening Relay
+ t) G1 m0 J) d; i% J * 63 - Pressure Switch$ e6 l2 r9 W+ R3 w
* 64 - Ground Detector Relay) w/ z( F5 Q$ v& Y# X
* 65 - Governor4 x5 A* O) k* p% F+ b5 F
* 66 - Starts per Hour
/ s, A _: f$ v * 67 - AC Directional Overcurrent Relay
* }/ C# [# E* a/ c, @ * 68 - Blocking Relay# v4 l3 t8 g r2 G! A
* 69 - Permissive Control Device- i6 |+ _3 X. n
* 71 - Level Switch) c0 s# e! Y" x' I7 w
* 72 - DC Circuit Breaker
0 B. B m8 {8 u" X$ r( b) x * 74 - Alarm Relay
6 h# w3 ], j3 [+ E) z$ n' U# t * 75 - Position Changing Mechanism( h' k7 k, ]8 o! O# i6 f5 |
* 76 - DC Overcurrent Relay5 ]* G* f% |) R0 l( ]
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
v+ B, t6 ~8 N6 A2 c2 G * 79 - AC-Reclosing Relay0 d3 l6 o5 L) \
* 81 - Frequency Relay
* R0 C! j+ }! ]: _ * 83 - Automatic Selective Control or Transfer Relay
. O6 t1 K' r8 H * 84 - Operating Mechanism! Q) ~0 b$ g) R" u, H( j9 f( c
* 85 - Carrier or Pilot-Wire Receiver Relay
$ m/ |" w5 j8 H2 U! h7 O * 86 - Lockout Relay P9 J; o8 C. x1 M# s5 ?
* 87 - Differential Protective Relay: @" H+ V0 r& }6 U6 ?1 w9 D; L
* 89 - Line Switch
6 C# {* l7 E& I' O- T * 90 - Regulating Device7 Y- v t0 {* S+ X3 A
* 91 - Voltage Directional Relay# l/ h' R, S1 e, |7 B9 C7 X
* 92 - Voltage and Power Directional Relay
8 F" X4 ~+ E$ L7 b- B0 H * 94 - Tripping or Trip-Free Relay5 f: X- } E' L* h2 x
* 95 - Reluctance Torque Synchrocheck
, U( n4 c8 d' w$ U! F * 96 - Autoloading Relay |
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