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List of Device Numbers
$ K. d# {! o% r4 |" U! S# d- ~* o4 R" CClick to learn more...: C& w. k* d. h8 b) U I$ h
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* 1 - Master Element
3 w% w4 a# ~9 K& V# I * 2 - Time Delay Starting or Closing Relay
: d. G+ U3 J/ J% Z) { I* d * 3 - Checking or Interlocking Relay" |. x! {4 {7 R1 h
* 4 - Master Contactor
0 X& C" b# ~# ~* }! v% U# u * 5 - Stopping Device) I; N, ^$ x6 X: ]) l; t7 {9 E
* 6 - Starting Circuit Breaker
. `: x6 s8 S9 n7 d' d9 R * 7 - Anode Circuit Breaker
; O0 A; p' l. l2 x4 E * 8 - Control Power Disconnecting Device
, R7 D6 L) C' Y Y * 9 - Reversing Device" X) l6 @" }' ^% `/ _
* 10 - Unit Sequence Switch0 ?8 S7 _+ ], Y9 b5 u) C0 p" ]5 w
* 12 - Overspeed Device6 V7 o _( @; [1 n- Z# Q
* 13 - Synchronous-speed Device
- C7 ?& P t `% h * 14 - Underspeed Device
, K: x9 }1 z0 M3 e0 y3 ^6 R. a * 15 - Speed - or Frequency-Matching Device
/ k. Q3 n A" B0 w6 X4 O * 21 - Distance Relay
2 W$ `+ @" L* q, U * 23 - Temperature Control Device
/ e2 ^" p' M7 @$ G! T * 25 - Synchronizing or Synchronism-Check Device
0 [/ _! c }+ A" T * 26 - Apparatus Thermal Device3 V" R) A5 X% }" ^
* 27 - Undervoltage Relay
: |: [8 |$ y7 o8 `- P3 J2 C * 29 - Isolating Contactor
) S! n8 a/ y+ r * 30 - Annunciator Relay
$ Z7 w: F) Z2 ~6 i# {8 N. N* Y * 32 - Directional Power Relay
! s, u2 K( d, q# x" l * 36 - Polarity or Polarizing Voltage Devices
" [( O6 i+ l$ P% ?, Y, j; U * 37 - Undercurrent or Underpower Relay) Z8 d6 b1 N; z4 O3 B- B: C
* 38 - Bearing Protective Device9 ?3 s- H$ Y. Y2 C# q' e! o- L
* 39 - Mechanical Conduction Monitor
0 L6 i$ r3 A) a+ S) b1 n8 v% Z. T * 40 - Field Relay
9 ]! @' |. J' z& V * 41 - Field Circuit Breaker
+ Q, c0 ]/ i+ H" S4 B * 42 - Running Circuit Breaker
) F! V. G: ~# P- i * 43 - Manual Transfer or Selector Device6 S1 Q% ~0 T3 a8 `% F6 T
* 46 - Reverse-phase or Phase-Balance Relay
+ H' J# a7 m% ?* W * 47 - Phase-Sequence Voltage Relay
0 I0 ?$ c% D, C- Y" \# x * 48 - Incomplete-Sequence Relay
+ e% S, C7 U. T7 w# t$ e2 s6 A * 49 - Machine or Transformer Thermal Relay" N) f, B/ O. k+ Q, z
* 50 - Instantaneous Overcurrent
3 f0 A1 ^: P6 [$ J+ I8 `& m * 51 - AC Time Overcurrent Relay
- ]: U! M8 r) H) w * 52 - AC Circuit Breaker
% K! J' X: N6 s4 A# H' k * 53 - Exciter or DC Generator Relay- C+ p# o5 E0 S3 t8 b) w
* 54 - High-Speed DC Circuit Breaker/ d ?9 C, v7 I3 g# l* b
* 55 - Power Factor Relay
: _2 @3 \9 x4 D+ z5 \& L * 56 - Field Application Relay
9 F* Q, e0 q2 z t( ] x2 r * 59 - Overvoltage Relay
/ G% }: Z; O( p3 A6 @ * 60 - Voltage or Current Balance Relay
: u! z6 B) g3 |2 t7 S * 61 - Machine Split Phase Current Balance% }% t6 z3 a5 {! L# C; T
* 62 - Time-Delay Stopping or Opening Relay
$ Z# y$ K6 a* q& u) E; y * 63 - Pressure Switch* Y: D3 x( K% v6 V
* 64 - Ground Detector Relay% \) c: W7 e5 X' K
* 65 - Governor7 v9 E0 P7 }. h
* 66 - Starts per Hour
$ d9 R0 ^2 A$ R; j( |, T * 67 - AC Directional Overcurrent Relay1 w1 k- [3 @* Y' U. x
* 68 - Blocking Relay
2 c1 [& |1 ?$ r+ q" X& P% K * 69 - Permissive Control Device
. ~/ K* X5 z# ]: n2 ~ * 71 - Level Switch7 C0 I( z! ]8 Q
* 72 - DC Circuit Breaker
5 t- A5 p1 N( n; i1 { * 74 - Alarm Relay
' z: {( n) G: A' f1 Y6 n * 75 - Position Changing Mechanism4 z. T2 f. F3 ?7 }
* 76 - DC Overcurrent Relay
9 k: R+ N a3 C- I9 ^ * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay- ~) R7 h6 x$ K7 c1 m# Y0 m
* 79 - AC-Reclosing Relay2 K2 q# c3 ]" ]' G/ c9 i
* 81 - Frequency Relay
3 q% H7 x' l! w6 p * 83 - Automatic Selective Control or Transfer Relay) R+ d$ @" s. L( M" C
* 84 - Operating Mechanism1 x- F( ~& p3 K+ n
* 85 - Carrier or Pilot-Wire Receiver Relay
- w1 K, O( O/ ]) ]$ B * 86 - Lockout Relay
$ X7 X4 `; t. V * 87 - Differential Protective Relay' ~( ^ O2 |5 c
* 89 - Line Switch: J E8 s& u4 d2 I: X% Q
* 90 - Regulating Device3 r! O1 K! o+ _( @ T- \, u
* 91 - Voltage Directional Relay$ O6 G L4 f" |9 s' D
* 92 - Voltage and Power Directional Relay
, Z5 s, @( u9 `3 h* S/ {- U * 94 - Tripping or Trip-Free Relay
6 v, W# I( O& M * 95 - Reluctance Torque Synchrocheck! u, F! f( ^; @9 x' f
* 96 - Autoloading Relay |
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