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List of Device Numbers
/ g" e2 o! } A" j( TClick to learn more...( S& K& a" o& z( M& y: l! P
8 E8 |! V4 a5 q0 y% C9 a1 y$ w * 1 - Master Element
" d- J2 C0 ]/ w& v1 z, D * 2 - Time Delay Starting or Closing Relay! r0 s9 E( j/ O
* 3 - Checking or Interlocking Relay! ?1 x& ?' y, {6 g$ n9 i2 R9 T+ S
* 4 - Master Contactor. n6 b1 o! @' ~, d( U7 N6 ~* k
* 5 - Stopping Device
/ {' c4 W/ `! z {7 @! M * 6 - Starting Circuit Breaker
$ h& x6 t* g( j: ?4 E * 7 - Anode Circuit Breaker
; z1 U$ G5 k9 p' ]$ b) U * 8 - Control Power Disconnecting Device
1 J8 e4 ]2 }6 k% P: T2 Y * 9 - Reversing Device) l- D' D. H9 ]8 X* `
* 10 - Unit Sequence Switch: R0 J4 u& e) @1 Z8 l* t E
* 12 - Overspeed Device
& I% J6 {& J- Q7 l0 S * 13 - Synchronous-speed Device; k: v+ _% Q' m# O
* 14 - Underspeed Device
$ J" \2 G1 x) g, @2 Q% S6 d * 15 - Speed - or Frequency-Matching Device$ Q9 K( E' T# l- A( J+ _* v
* 21 - Distance Relay# V# A2 \" \8 Z5 z2 r
* 23 - Temperature Control Device
% V# @3 w2 V6 s5 r" z, d, b& E- q$ t * 25 - Synchronizing or Synchronism-Check Device
$ Y% w* c% j4 K! T- \1 S * 26 - Apparatus Thermal Device3 p8 T1 U. `! p, e1 @
* 27 - Undervoltage Relay
; k" h! @; s U4 N# ^/ N5 Z, { * 29 - Isolating Contactor) Q4 D, G8 X& w
* 30 - Annunciator Relay y( t( w1 k6 I+ E6 l! F, a
* 32 - Directional Power Relay2 |/ Z6 a8 H8 D' M) d# ^/ R
* 36 - Polarity or Polarizing Voltage Devices
: B0 ^9 d- }' V4 L$ ?6 n6 K6 v, y6 H * 37 - Undercurrent or Underpower Relay
9 c- N$ J$ ~% P ^! U0 B * 38 - Bearing Protective Device
1 F8 b$ F4 T+ e# k: y * 39 - Mechanical Conduction Monitor
j, p; X* x- V1 ` * 40 - Field Relay
8 r6 B+ t( g$ h/ _3 Z) y * 41 - Field Circuit Breaker
" ~- B, F1 w% o# | * 42 - Running Circuit Breaker& b! K' O/ f) n5 J1 ]
* 43 - Manual Transfer or Selector Device" ~4 D0 O5 I* }2 g: ?+ o
* 46 - Reverse-phase or Phase-Balance Relay
: i; {- Y# E# X' V Q- B; O * 47 - Phase-Sequence Voltage Relay% A% h! \+ W$ n7 l9 u. N }
* 48 - Incomplete-Sequence Relay3 }. t/ u$ n3 [ C
* 49 - Machine or Transformer Thermal Relay
: ^1 E1 d) h/ j1 r, B( V) k * 50 - Instantaneous Overcurrent( h4 k3 }5 }, n% Q5 W, l
* 51 - AC Time Overcurrent Relay
9 }# W' p4 I$ Z/ |; ]+ T * 52 - AC Circuit Breaker
! s) O0 Q- }* C, S# h6 C. P/ ^ * 53 - Exciter or DC Generator Relay
4 S. O3 @' ^" K2 D" i * 54 - High-Speed DC Circuit Breaker
8 U, _! o& z% y0 g * 55 - Power Factor Relay0 V- s; K9 p" Y! b% I
* 56 - Field Application Relay( I. i( W9 Q6 p, N% ~9 c8 x$ \( \/ M9 Q
* 59 - Overvoltage Relay
+ \! P5 J. U/ V6 @& ]" K/ N' I * 60 - Voltage or Current Balance Relay
- D/ i4 H5 I, j- t, v0 @ * 61 - Machine Split Phase Current Balance* G2 E2 ]: g. X* `! I( f" p. _
* 62 - Time-Delay Stopping or Opening Relay4 v( l. u) W$ o9 y% s$ T2 C" p8 [+ ?
* 63 - Pressure Switch
/ p& X: O& f; Z, G * 64 - Ground Detector Relay
) W; R# s& p. } * 65 - Governor
1 k* k4 P8 j+ d/ r * 66 - Starts per Hour. H9 R, A& |" p1 k, a# K- P5 P
* 67 - AC Directional Overcurrent Relay
% j8 |' j8 Y, Y * 68 - Blocking Relay
+ C6 N/ U7 C6 n * 69 - Permissive Control Device7 w) p; B C ~
* 71 - Level Switch
. B3 w! V) k( n, W * 72 - DC Circuit Breaker; }7 F) e0 l3 E
* 74 - Alarm Relay
+ f3 @4 J0 p; ]- z2 q * 75 - Position Changing Mechanism
9 R: ~, @# t# Q# I1 z * 76 - DC Overcurrent Relay
9 S; N& Y% d L: q7 x * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
$ Y/ }) ^5 a/ ?9 ~0 }* B { * 79 - AC-Reclosing Relay8 u5 Z; S- t, {+ X
* 81 - Frequency Relay: J0 o" ~2 r( u3 `7 w3 Y) L; X6 e* J
* 83 - Automatic Selective Control or Transfer Relay" O& Y6 a% T" n! ]0 |; _' L
* 84 - Operating Mechanism5 x# ~5 s; Q; ^" R
* 85 - Carrier or Pilot-Wire Receiver Relay
6 d2 [$ ~ u/ R9 e * 86 - Lockout Relay
+ ~" \+ U4 i/ k% V * 87 - Differential Protective Relay
0 ~3 |. [8 ~! a( w, Q. [ * 89 - Line Switch
1 d% p: j& O' Y, ?* o5 ]9 `- G * 90 - Regulating Device
5 l& V* Q' A! `* y' w * 91 - Voltage Directional Relay9 j( v" \3 W$ ?6 ~0 P% L C
* 92 - Voltage and Power Directional Relay
{* S0 I" O; _- y% m R * 94 - Tripping or Trip-Free Relay: a" U6 @+ S$ k) s
* 95 - Reluctance Torque Synchrocheck
4 G1 q+ B3 A3 n! t/ w$ \/ @0 a6 O * 96 - Autoloading Relay |
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