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List of Device Numbers
9 H9 A) {' s2 N: [1 xClick to learn more.... \# a" S" F1 i+ v6 p* D
/ m8 d$ x) w: ]/ D# N/ a# I * 1 - Master Element! \$ b3 F" X4 t4 Q I5 ?& f8 D$ C
* 2 - Time Delay Starting or Closing Relay
/ m3 i' I4 T# M# E+ R * 3 - Checking or Interlocking Relay; Q5 s! D* i4 c0 n8 W' L
* 4 - Master Contactor
; L3 r/ g$ D3 r# A+ v: m% ] * 5 - Stopping Device
1 E0 X2 H+ e- {8 B% L- } * 6 - Starting Circuit Breaker: F8 \! s( e8 d* N6 u. b- p0 I
* 7 - Anode Circuit Breaker
+ y: e) ^, |8 A6 Q/ j * 8 - Control Power Disconnecting Device
$ G5 Y) l4 q6 x7 l9 j* z( { l * 9 - Reversing Device, D( k: A9 p9 V
* 10 - Unit Sequence Switch; `9 K$ u# i$ |# j
* 12 - Overspeed Device0 N+ L' \/ p2 S s- |1 S# H
* 13 - Synchronous-speed Device+ g9 ]+ h8 A4 p- t6 ~8 g- h% n8 [: O0 C
* 14 - Underspeed Device- T6 j& J" Y7 }5 r5 r
* 15 - Speed - or Frequency-Matching Device
- r' K+ G6 [9 q * 21 - Distance Relay1 ]2 k; N6 l1 F y8 e* r6 d
* 23 - Temperature Control Device
& y9 q2 X, o1 {0 G0 o * 25 - Synchronizing or Synchronism-Check Device* Q9 m- X5 H/ Y3 h/ T. Q
* 26 - Apparatus Thermal Device3 P" Y4 }& j3 J' H
* 27 - Undervoltage Relay! Q, A1 s) j1 @/ @1 b& x
* 29 - Isolating Contactor/ g# A! |& N3 z! r; k
* 30 - Annunciator Relay' Y- L% K9 p$ S
* 32 - Directional Power Relay0 v2 i4 X4 d. n* j7 _8 Y
* 36 - Polarity or Polarizing Voltage Devices
1 D% n2 x$ g" ^4 W ] * 37 - Undercurrent or Underpower Relay7 G. V* v X1 @& V- h
* 38 - Bearing Protective Device
6 e7 e# N/ e5 ]7 f5 O * 39 - Mechanical Conduction Monitor9 i# g( Q9 I" o! Z" h m) m
* 40 - Field Relay
' |" ]& C( `' g' }0 V * 41 - Field Circuit Breaker- u4 n& g& T8 o$ c0 V; K; i
* 42 - Running Circuit Breaker
3 C) X' W, b: N& K4 G3 C * 43 - Manual Transfer or Selector Device8 D! _6 k# |7 X% b* I1 |3 M( y
* 46 - Reverse-phase or Phase-Balance Relay
9 r# Y1 @ c# ~6 U * 47 - Phase-Sequence Voltage Relay2 H, M c' D# Q; |0 A& c: \
* 48 - Incomplete-Sequence Relay& g8 j' E6 _5 O& ^1 ^; ?% t
* 49 - Machine or Transformer Thermal Relay& a9 K2 y9 w7 v- C" o' H
* 50 - Instantaneous Overcurrent3 m0 ^" n/ D2 {0 w
* 51 - AC Time Overcurrent Relay+ U3 _2 C2 q+ G# R
* 52 - AC Circuit Breaker
0 e7 J8 Q: Q% ^$ W * 53 - Exciter or DC Generator Relay+ l0 L4 ^' {0 u* t" W
* 54 - High-Speed DC Circuit Breaker
~: m7 D' z( w; k# Y * 55 - Power Factor Relay
6 |/ F2 o B) _* Y2 }& N * 56 - Field Application Relay e: J8 U2 i# L V2 {
* 59 - Overvoltage Relay
) H& S% V s- \* H, ~ * 60 - Voltage or Current Balance Relay
+ S- X* `' b$ x$ P8 g: } * 61 - Machine Split Phase Current Balance9 O+ o2 A: y. D) X% x& F& g
* 62 - Time-Delay Stopping or Opening Relay2 G l: I3 t& P2 k: p9 O8 o
* 63 - Pressure Switch
: C, o6 z! D9 I# A& `: U" ] * 64 - Ground Detector Relay
8 ], p2 S9 u" k3 o* I4 F * 65 - Governor
7 f6 y0 P' l. X * 66 - Starts per Hour
. n' K& X# j9 a) q8 B* L, k * 67 - AC Directional Overcurrent Relay
" a9 v: B4 F$ h S; X& d) S+ d$ ~ * 68 - Blocking Relay
0 c4 g+ j& X1 U* p * 69 - Permissive Control Device
9 Y+ P" g6 O, j * 71 - Level Switch; Z1 F& L& s3 g, t, r5 a
* 72 - DC Circuit Breaker
& Z- T! _6 M% t% [; R3 l * 74 - Alarm Relay q: s; z; d, R- U8 q
* 75 - Position Changing Mechanism; ]) a$ m% ?2 R( X" ]. C7 m
* 76 - DC Overcurrent Relay
3 s) k, e, G* t: C1 {7 O * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay$ c7 ~+ D. x# T/ X
* 79 - AC-Reclosing Relay
) I! p$ ?5 M# } * 81 - Frequency Relay
' r9 l& M+ G4 ]7 G/ E3 I2 \7 M6 b * 83 - Automatic Selective Control or Transfer Relay3 `, o) I- U4 b6 G \" x( y
* 84 - Operating Mechanism
+ ?. l* W* m% I$ } * 85 - Carrier or Pilot-Wire Receiver Relay( V" P5 v5 N2 {3 x& A- C0 f
* 86 - Lockout Relay
$ L7 u8 a: x* F0 {! Q4 T# k+ { * 87 - Differential Protective Relay
$ A: ^4 R# w5 K, T4 M * 89 - Line Switch
! T* \6 G" K, I& J * 90 - Regulating Device
% t5 Q! L4 E7 m5 X m * 91 - Voltage Directional Relay4 @5 ^6 F4 g7 c; `) H. l/ x
* 92 - Voltage and Power Directional Relay1 @: z7 u5 Q) K3 [
* 94 - Tripping or Trip-Free Relay. z# m7 x2 ~ n+ r
* 95 - Reluctance Torque Synchrocheck; g. Q0 N: G! d, d0 C/ T* J
* 96 - Autoloading Relay |
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