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List of Device Numbers* a! j9 g/ U! { n
Click to learn more... I2 |9 C" d. U! B% i2 A2 G/ W
z" X! A$ w9 a( |0 P, `8 T * 1 - Master Element) R) f* w7 _* m
* 2 - Time Delay Starting or Closing Relay
' o M0 `) {! G8 i5 M- U0 x * 3 - Checking or Interlocking Relay
P0 V1 M9 i/ v" T# v# `. P( r8 } * 4 - Master Contactor
$ Z; G/ i! C; J' D4 } * 5 - Stopping Device; n, {2 i4 ]& l4 y
* 6 - Starting Circuit Breaker
& k: m* |& X& G2 P+ w: Q! w * 7 - Anode Circuit Breaker' Z/ g, g& W( Q! B! n
* 8 - Control Power Disconnecting Device
' C( n8 [5 r, I' r * 9 - Reversing Device) f: t/ x, v) o" l% v7 r+ F1 i5 b+ |
* 10 - Unit Sequence Switch& c A4 M; Z! p- ]& U8 C7 w( c
* 12 - Overspeed Device
$ m) p6 U7 Z9 L * 13 - Synchronous-speed Device
( B5 m; {- u a! r8 i0 o * 14 - Underspeed Device
7 q4 O, w) Z8 z4 |( T * 15 - Speed - or Frequency-Matching Device
# R. ]1 ?! \( l& _5 e: ^ * 21 - Distance Relay
! g& n( @. ~3 l0 g. D * 23 - Temperature Control Device
8 R2 k6 H) a8 d, j * 25 - Synchronizing or Synchronism-Check Device3 Y# s! H# |3 A
* 26 - Apparatus Thermal Device+ W: P, W* J+ p! h2 Z
* 27 - Undervoltage Relay
/ R3 N/ r% l Y! M * 29 - Isolating Contactor& _ x6 x$ [8 H/ m: V# M
* 30 - Annunciator Relay; K) k/ m$ U4 s+ x1 ]
* 32 - Directional Power Relay2 K' a! ^1 `0 ^9 @; m) `
* 36 - Polarity or Polarizing Voltage Devices
1 K! ?; [+ o# r( \- h: X * 37 - Undercurrent or Underpower Relay
+ v) D1 B2 M7 \ * 38 - Bearing Protective Device& y+ N6 X+ x, B5 Y; x2 |
* 39 - Mechanical Conduction Monitor. q @2 ?: G9 G3 k+ E6 Y& S2 b
* 40 - Field Relay7 ^( G" k7 A4 U8 q& S. l" m
* 41 - Field Circuit Breaker; K& }6 C2 `1 y$ c& }: }0 Z. Z
* 42 - Running Circuit Breaker* V. w) k: `7 V6 m! ]5 ?
* 43 - Manual Transfer or Selector Device: C9 r6 }( `( u c* T2 U
* 46 - Reverse-phase or Phase-Balance Relay6 d1 a6 T. s3 t6 i1 z! v
* 47 - Phase-Sequence Voltage Relay
. j, z/ \! }8 R * 48 - Incomplete-Sequence Relay# k9 L% P7 e* n8 u# }
* 49 - Machine or Transformer Thermal Relay @) }5 r* V0 `0 h
* 50 - Instantaneous Overcurrent
- g3 U2 K/ e8 ^! ~' |5 g * 51 - AC Time Overcurrent Relay, \; o- ?+ r( P2 n5 E; P
* 52 - AC Circuit Breaker2 D, ]9 y3 H. |
* 53 - Exciter or DC Generator Relay
/ z& r' D9 h. e. Q/ S * 54 - High-Speed DC Circuit Breaker
% Q, }7 k! v' G! V9 {6 Z * 55 - Power Factor Relay/ N! s9 C8 ~9 m8 N; I7 \
* 56 - Field Application Relay
6 |/ H- z |- _" T$ V d* Q Y * 59 - Overvoltage Relay, h$ I' f, ]( p Y' I7 E2 p5 s
* 60 - Voltage or Current Balance Relay$ s, _: X. G0 x9 M5 w
* 61 - Machine Split Phase Current Balance
5 b/ r6 \ u( C, q- O * 62 - Time-Delay Stopping or Opening Relay
+ E' L0 A9 P; H [/ a * 63 - Pressure Switch
8 D( g7 X- b, I1 g; T3 ^. S# y * 64 - Ground Detector Relay" j; t2 a- ]8 M$ o" M2 ?( W
* 65 - Governor! S! T# x$ C& ^3 X
* 66 - Starts per Hour
3 K2 S& R8 q! C( [: B# S * 67 - AC Directional Overcurrent Relay
/ }! v& J- \, a/ a% }; X * 68 - Blocking Relay
) k. [3 U7 Y9 x* Y. ` z7 N; i * 69 - Permissive Control Device9 l* z% t# j1 }7 F, b3 c, f
* 71 - Level Switch# q7 C4 D4 R# Q: A5 o
* 72 - DC Circuit Breaker
2 E: J1 C+ ]0 g/ W' L * 74 - Alarm Relay
' o8 F9 I( z* W0 h * 75 - Position Changing Mechanism1 H {8 a. x3 C5 s; W7 w* o
* 76 - DC Overcurrent Relay
/ A {* n/ Q, p2 h7 L * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
% {; E U0 ~6 V, ?: _ * 79 - AC-Reclosing Relay
0 I2 ~( j" r8 s( K6 d8 W: ` * 81 - Frequency Relay
3 i( v# j: [% _( T/ w * 83 - Automatic Selective Control or Transfer Relay
/ f4 B8 @. |7 _! G* k$ M* ? * 84 - Operating Mechanism% P% b X, A$ X) i5 ^. A: }
* 85 - Carrier or Pilot-Wire Receiver Relay) e6 w' ?# J2 m7 }" f* Z
* 86 - Lockout Relay
* ^2 D: _0 i! `! ?) Q1 U * 87 - Differential Protective Relay3 h* y6 k% J) s3 @8 ^3 R
* 89 - Line Switch, ~: ]* B( ^7 e6 M% z
* 90 - Regulating Device
3 c, x& V( k1 q7 G; ~ * 91 - Voltage Directional Relay, R( q5 Y9 _2 U! g
* 92 - Voltage and Power Directional Relay5 v. k+ F6 B0 j
* 94 - Tripping or Trip-Free Relay
4 P- H) K& v @' P- a' J9 @5 \ * 95 - Reluctance Torque Synchrocheck* m' B+ ?9 N0 U" |4 x! j" P
* 96 - Autoloading Relay |
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