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List of Device Numbers
7 H- M( G: q" d# ^; wClick to learn more...+ ~& x( h4 M# E( w0 _
2 L+ t X# w6 x/ {/ Y * 1 - Master Element% Y6 }- M3 `9 g: ]/ j1 f
* 2 - Time Delay Starting or Closing Relay
/ _: i, O7 ^& t: m M, y6 k* l * 3 - Checking or Interlocking Relay2 _# I+ A& n4 g1 ~0 [' T
* 4 - Master Contactor: y" Q6 M8 M/ X* ~
* 5 - Stopping Device5 m6 n3 @( _4 ?8 Y! |
* 6 - Starting Circuit Breaker
: D' C2 a( m, W5 z) A * 7 - Anode Circuit Breaker
: w7 j9 U) c- q8 @ * 8 - Control Power Disconnecting Device
* A0 o) i# h: w0 O9 W, u * 9 - Reversing Device
' L7 \% X% J( S5 X0 E * 10 - Unit Sequence Switch
$ j' K5 W0 O; R! F, V * 12 - Overspeed Device* o8 z2 ^4 ~" t% f
* 13 - Synchronous-speed Device! n% l" i V' V) ?
* 14 - Underspeed Device3 g5 O) v' L8 M
* 15 - Speed - or Frequency-Matching Device
" `5 | @, x, E * 21 - Distance Relay1 M B) z% \' c7 N% T0 z$ ]2 {) n
* 23 - Temperature Control Device. ?! o6 X: R$ F6 D& ?
* 25 - Synchronizing or Synchronism-Check Device
3 n# o$ {' `7 U- x$ g% s0 B- m9 W * 26 - Apparatus Thermal Device- k' u1 l0 ?& H0 s( V) C
* 27 - Undervoltage Relay. p+ o0 g0 N; L" u N( `# {
* 29 - Isolating Contactor/ s& y: O0 @8 ?5 |. Q
* 30 - Annunciator Relay ^6 j! t2 ]* R/ J' `+ p& l8 @
* 32 - Directional Power Relay
% ~- s8 ]5 j" K) m. X j2 w) r" E * 36 - Polarity or Polarizing Voltage Devices w- @) G# W# _. n
* 37 - Undercurrent or Underpower Relay( R6 @- R9 ~4 t/ V9 a* U7 E
* 38 - Bearing Protective Device$ \' s9 T0 t N' ~7 o/ `7 j L: L
* 39 - Mechanical Conduction Monitor
" g& N. _, H$ D- U* B8 Y * 40 - Field Relay4 h) P9 b/ ~3 D1 v
* 41 - Field Circuit Breaker# ~# j1 R; l, |, q
* 42 - Running Circuit Breaker
3 Q4 H/ G+ o" a; g$ U1 d; W * 43 - Manual Transfer or Selector Device6 h6 r p7 p( s& k$ t9 o4 q7 I, `( f
* 46 - Reverse-phase or Phase-Balance Relay
6 j! [" |6 X) C8 Y! D1 t( k * 47 - Phase-Sequence Voltage Relay
% z/ L: r* c( j& c2 k: S * 48 - Incomplete-Sequence Relay) N# ?, z% ?2 A7 l- l
* 49 - Machine or Transformer Thermal Relay X8 H+ d3 E7 H u* ]. r8 g& h
* 50 - Instantaneous Overcurrent
% \7 \$ F) K6 u0 o, w0 A& K- K * 51 - AC Time Overcurrent Relay
7 l B7 E) O% t# ~% Q( N0 G2 n * 52 - AC Circuit Breaker
& P- j$ A! t4 ?$ h; t * 53 - Exciter or DC Generator Relay
" Y, ?7 y. v4 V * 54 - High-Speed DC Circuit Breaker3 q% U* p7 R2 P1 T! r
* 55 - Power Factor Relay" u5 j6 K' Y: A; e
* 56 - Field Application Relay6 m+ ~* p2 r0 T+ [ [# k
* 59 - Overvoltage Relay4 [' G* F7 J0 Z0 }) @: P
* 60 - Voltage or Current Balance Relay6 w8 w3 g0 K( C% F3 O( |& x
* 61 - Machine Split Phase Current Balance3 \5 i0 ?" R! t1 M6 p# f
* 62 - Time-Delay Stopping or Opening Relay2 ~1 _& j$ W. w; @4 K4 e- `
* 63 - Pressure Switch z+ i. b" T7 R r" U7 l6 k
* 64 - Ground Detector Relay4 Z$ X/ t: z+ }* @8 o. H9 n
* 65 - Governor0 W u( i& I+ q! Z( G7 k
* 66 - Starts per Hour
: B0 p$ [/ [; f) a N * 67 - AC Directional Overcurrent Relay$ \. X3 K; e2 j3 d9 r
* 68 - Blocking Relay& O3 ^1 Y' E7 |. E& S* y0 F; N3 \
* 69 - Permissive Control Device7 u5 _ h( C' T0 d# @- J
* 71 - Level Switch
% L. j! r3 d* M, k( G * 72 - DC Circuit Breaker9 D8 o& H, ~- ?) F, }3 [, T8 u9 C
* 74 - Alarm Relay
# `6 V* H e, N- H5 @$ @ * 75 - Position Changing Mechanism
" S6 _8 X0 [6 D B" Z * 76 - DC Overcurrent Relay$ P1 V$ c( G' l; _( z" f j
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
& J3 V) x# m& a * 79 - AC-Reclosing Relay2 l! l+ | N. F2 [9 {! J W7 y- v. n$ z6 W
* 81 - Frequency Relay, A# `3 ` _( W7 t
* 83 - Automatic Selective Control or Transfer Relay6 c9 A- S. s" U
* 84 - Operating Mechanism/ ?7 L" y1 H. @/ G M1 y+ v
* 85 - Carrier or Pilot-Wire Receiver Relay1 ~ T5 t4 w+ N
* 86 - Lockout Relay
$ q9 o5 \) S/ ]$ V9 e * 87 - Differential Protective Relay
& N: i. \# c- @7 h) k * 89 - Line Switch
0 Z1 B# G; V8 K, Q% W7 y * 90 - Regulating Device6 R9 X& i" U% X3 w* ]
* 91 - Voltage Directional Relay2 _* ]% E! B: o I& n5 f" }
* 92 - Voltage and Power Directional Relay7 E' T/ o6 d" n
* 94 - Tripping or Trip-Free Relay
. a4 h" y) D0 q * 95 - Reluctance Torque Synchrocheck+ K! N) L b! N
* 96 - Autoloading Relay |
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