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List of Device Numbers
* Q# X$ b) p9 I" l$ D- uClick to learn more...8 ~. ]$ b' y8 t \6 K0 X
" h3 d5 K) B7 C3 v( o5 A+ W * 1 - Master Element4 ?" X D) ]- O" s
* 2 - Time Delay Starting or Closing Relay
1 w" Q1 z8 J: A * 3 - Checking or Interlocking Relay) J4 i4 O" W1 i* Y3 ?0 H
* 4 - Master Contactor
- Z$ e% x* ]3 \/ y" J3 _ * 5 - Stopping Device
1 Y8 ~/ v! _0 U0 U6 D5 v7 A a * 6 - Starting Circuit Breaker+ ?$ @3 b" k! E
* 7 - Anode Circuit Breaker
+ q& u3 D# G- o" E5 n. _ * 8 - Control Power Disconnecting Device2 ?" S7 h- M8 O
* 9 - Reversing Device8 U& _$ w# {1 c( u3 Y; @4 \5 R$ E
* 10 - Unit Sequence Switch. k0 H$ Y( Z$ T2 B2 p% q
* 12 - Overspeed Device
' K$ ^. X7 u1 C$ z. j * 13 - Synchronous-speed Device
& `, x& R7 T a1 K * 14 - Underspeed Device
: s* N9 Q, P' A! w9 u * 15 - Speed - or Frequency-Matching Device; g% m( v- u* O+ N$ [" G
* 21 - Distance Relay
2 f g* ]5 e7 E# o( Y * 23 - Temperature Control Device) B9 g# M, o0 \, l+ O d3 ~
* 25 - Synchronizing or Synchronism-Check Device7 {. }1 [4 q; _6 C
* 26 - Apparatus Thermal Device& N& a8 T4 r" i/ X/ [/ q
* 27 - Undervoltage Relay
! R, C; h5 J) R * 29 - Isolating Contactor
, O( s. B- r2 f8 c, z * 30 - Annunciator Relay. @) ]- r8 `' O2 K6 P% }% o9 D* Y
* 32 - Directional Power Relay, i% A0 d2 H; O4 Y! k
* 36 - Polarity or Polarizing Voltage Devices
% g- r% w5 r+ O7 s& ^: U" ` * 37 - Undercurrent or Underpower Relay/ `: x9 [5 y" ]$ I7 K) j q$ N3 t) d
* 38 - Bearing Protective Device
8 A, o9 `% t% h# C) C, w r. h * 39 - Mechanical Conduction Monitor
, r& H$ l, c7 N! ^ l9 I- _! |! H * 40 - Field Relay
4 r* e! U0 a* a * 41 - Field Circuit Breaker$ h: Q9 Y. i" Q4 `
* 42 - Running Circuit Breaker: T& M1 m+ {# s+ h; U
* 43 - Manual Transfer or Selector Device
1 @: i; }% ]. h' b+ { * 46 - Reverse-phase or Phase-Balance Relay
) Z4 l+ e: m- \/ P1 I0 Z * 47 - Phase-Sequence Voltage Relay
) u1 T5 T1 `5 {1 |) ^) V3 j * 48 - Incomplete-Sequence Relay
# O$ e. V+ {7 ]/ n+ _2 L7 H5 U * 49 - Machine or Transformer Thermal Relay4 R }4 }! z- G
* 50 - Instantaneous Overcurrent
* e1 d: j+ ^# N9 k. i' X3 H4 V5 E * 51 - AC Time Overcurrent Relay
& v, G0 G3 j6 I5 F/ K * 52 - AC Circuit Breaker, F) i: l+ c/ }9 `! I' x* `( R
* 53 - Exciter or DC Generator Relay ^4 \; b* K) k% k% f
* 54 - High-Speed DC Circuit Breaker
/ |; \. P# t7 Q5 X! Z5 y3 [ * 55 - Power Factor Relay( t: b: s) c! v2 [+ n+ Z/ R
* 56 - Field Application Relay
& i! f v/ ^ x0 }! a * 59 - Overvoltage Relay
2 h' I( H; b3 S" P8 r * 60 - Voltage or Current Balance Relay
0 |' d' X$ S. } * 61 - Machine Split Phase Current Balance6 w, h2 d& L& g% O8 q
* 62 - Time-Delay Stopping or Opening Relay
- |( P5 E6 ~8 n; i+ P1 [' f * 63 - Pressure Switch$ a0 R/ N& D5 Z% P/ |; t, V+ y
* 64 - Ground Detector Relay
\- E6 k7 Y! s8 ^$ u3 K * 65 - Governor$ S0 ^4 f# @. C* H7 s+ g
* 66 - Starts per Hour: p# P0 W' S% v% @* ?" x6 L8 j
* 67 - AC Directional Overcurrent Relay, W' o, a% V+ U* l6 {$ K
* 68 - Blocking Relay, [& I n; @+ ~, x0 R) M" U
* 69 - Permissive Control Device
9 s( i+ u( N! C8 o& K( a: I( w- Z1 z * 71 - Level Switch
; h% |4 o# [- R/ J( K * 72 - DC Circuit Breaker
) t) ^9 H% C8 X) _# o: q * 74 - Alarm Relay% E- C$ E+ z/ I: o3 ^
* 75 - Position Changing Mechanism4 _9 r( w+ A Z' F' \
* 76 - DC Overcurrent Relay/ S0 K& Q7 j- O9 x2 K: p
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
" d9 {$ V8 ^ m+ K3 \ * 79 - AC-Reclosing Relay
8 H( z p6 y: r * 81 - Frequency Relay
7 U. p3 q/ S, x) @4 u1 {/ x. [2 G- N * 83 - Automatic Selective Control or Transfer Relay
* n" s1 Y+ f4 k4 b5 P * 84 - Operating Mechanism
8 E$ @! m, C; v& z * 85 - Carrier or Pilot-Wire Receiver Relay- o' _6 H* U2 W1 \3 d
* 86 - Lockout Relay
- b1 F# r8 U% ?& h. h9 u * 87 - Differential Protective Relay( S3 V& B2 J- d, i# j* \$ Z1 O
* 89 - Line Switch$ o5 W2 n/ k V# N/ t
* 90 - Regulating Device
9 m, h9 d9 T0 S3 g$ {! S/ a' z * 91 - Voltage Directional Relay
" t$ a2 M7 @/ s * 92 - Voltage and Power Directional Relay
; o2 v- a8 {$ |' v8 p% r% |( G2 g * 94 - Tripping or Trip-Free Relay; B; _6 o ]( s6 N. i
* 95 - Reluctance Torque Synchrocheck, V3 R0 N# o+ N1 w# O8 v5 c C
* 96 - Autoloading Relay |
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