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List of Device Numbers$ ]6 ]" \+ \( _( _6 P8 r3 C
Click to learn more...' L7 w" H1 x+ l$ a% G$ o: `
9 q3 x8 \$ w4 q; |9 q- B2 m: { * 1 - Master Element
. ]: G$ [ R O0 H9 K1 Y, A: n * 2 - Time Delay Starting or Closing Relay
8 O1 m( Z. b2 J * 3 - Checking or Interlocking Relay7 J7 G/ ]& N* y& Q4 K- ~
* 4 - Master Contactor3 x# a9 c5 u; y+ O% x/ T* L! [1 c
* 5 - Stopping Device
7 e# {4 T$ ]0 ~# X& i& l * 6 - Starting Circuit Breaker
* L9 f; u; r$ S: |* e; V# \5 ?0 I * 7 - Anode Circuit Breaker
2 c5 [" V+ F [* p7 m/ ?; n8 \2 }* ] * 8 - Control Power Disconnecting Device
2 d. W( r( ~1 l1 e * 9 - Reversing Device
6 Y8 y* `. ~" N0 C* Q! j * 10 - Unit Sequence Switch
8 e) t, L t- N& Q+ U" u7 e! k * 12 - Overspeed Device- B' F1 s3 J. k0 i
* 13 - Synchronous-speed Device
% }2 e \! n* P6 Q' y * 14 - Underspeed Device
3 D+ |7 b m5 i' d; M4 _ * 15 - Speed - or Frequency-Matching Device
* m# I0 _# e9 I! q' R * 21 - Distance Relay: W& o5 P$ _* T
* 23 - Temperature Control Device: h! @3 K" ^* |* J" A# J
* 25 - Synchronizing or Synchronism-Check Device
7 Y. w. Y) \/ j) l3 o" O * 26 - Apparatus Thermal Device
/ @" {& l0 ~- k * 27 - Undervoltage Relay
1 k" Q6 Y! d4 E1 @: P * 29 - Isolating Contactor' K8 S/ S7 q! U s3 Z
* 30 - Annunciator Relay
, f1 X9 I. r" n! y; ` * 32 - Directional Power Relay/ A9 T5 f1 Q1 E% n
* 36 - Polarity or Polarizing Voltage Devices: s M5 t' O; V3 u& A
* 37 - Undercurrent or Underpower Relay: \, P( N! }3 o/ ^+ H8 K$ E8 a
* 38 - Bearing Protective Device
" q# e0 d& Y8 g3 @1 s* z * 39 - Mechanical Conduction Monitor
# [! \& H r2 V% k# Y1 V7 R6 q * 40 - Field Relay
7 r3 r+ \% _1 c3 L * 41 - Field Circuit Breaker: w; K" a/ O7 u/ `% c! c
* 42 - Running Circuit Breaker! o$ l. R: Y0 t" p9 ~& k
* 43 - Manual Transfer or Selector Device9 k# z+ O2 s( B9 [2 s a; D* K
* 46 - Reverse-phase or Phase-Balance Relay* u" a5 i+ q% ~& k) @
* 47 - Phase-Sequence Voltage Relay
. A& @* A. p" w1 a- A: W3 c9 c * 48 - Incomplete-Sequence Relay
: w3 E; Q/ I. x * 49 - Machine or Transformer Thermal Relay) j8 P9 Z; _7 a5 m+ z
* 50 - Instantaneous Overcurrent
d5 _$ ]) t* e, J7 r( O * 51 - AC Time Overcurrent Relay
# Z: S5 ~- z& D& |& }9 f * 52 - AC Circuit Breaker
. g. S+ }8 g ^2 K& H7 @" }6 E * 53 - Exciter or DC Generator Relay# u2 s; t. T( E! Y6 Q" e- X
* 54 - High-Speed DC Circuit Breaker
r7 }, `+ t& u+ W% ?' r * 55 - Power Factor Relay* B" w& r" o0 u& p; I+ O
* 56 - Field Application Relay
+ } _4 s* @# c( i7 Q9 ^ * 59 - Overvoltage Relay
9 W3 @/ f v& Q, L+ X * 60 - Voltage or Current Balance Relay
& x% A4 S/ S8 s! X1 d4 J. s * 61 - Machine Split Phase Current Balance
9 H) j+ @! s4 p * 62 - Time-Delay Stopping or Opening Relay: }1 `6 ^7 a* y( q' n
* 63 - Pressure Switch
5 f/ h( g6 `' Z: O2 |7 c0 ` * 64 - Ground Detector Relay
+ E5 A' |% X8 ~ q, t$ p * 65 - Governor3 E, k% K6 I, ]0 l$ E, b
* 66 - Starts per Hour
+ p: p Q/ }! K( X- I" h * 67 - AC Directional Overcurrent Relay' L W( t0 }4 G$ H4 ?
* 68 - Blocking Relay" Y# x' }2 z H) D" Z1 o- o
* 69 - Permissive Control Device) @) o' \+ y( j' G2 Z9 @, n& b
* 71 - Level Switch
- ` |! {+ H, t1 T * 72 - DC Circuit Breaker* N3 u( b& r8 s( s
* 74 - Alarm Relay
& M( B# B( `3 n2 r. o4 T * 75 - Position Changing Mechanism, I9 d; K9 G6 M& }9 Q% ^
* 76 - DC Overcurrent Relay, O5 U* l' N3 t, O7 ~/ R
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay- W5 D! X# B+ A; s) @" f
* 79 - AC-Reclosing Relay
5 X D/ m5 g" Y O * 81 - Frequency Relay
8 }- S, Q+ ]4 H" T5 @! ~ * 83 - Automatic Selective Control or Transfer Relay
/ m4 Q( Y6 P7 N/ a* @# N * 84 - Operating Mechanism0 W' K: j- D, [
* 85 - Carrier or Pilot-Wire Receiver Relay
5 h4 T+ s1 {( F4 @ * 86 - Lockout Relay" e. I- J6 V9 p6 \$ G
* 87 - Differential Protective Relay0 u! P8 [) j1 V4 Z8 b ?+ [
* 89 - Line Switch
0 n8 P/ P" O, x$ M% r; p3 M T * 90 - Regulating Device: v, V7 }7 y( E* k/ {* P4 Y
* 91 - Voltage Directional Relay
: E4 A* C* T: Q: Z1 N. Z2 |) [ * 92 - Voltage and Power Directional Relay' t/ u/ |" Y- o& |* W. Z
* 94 - Tripping or Trip-Free Relay
$ a8 i" h0 f0 |1 S; ] * 95 - Reluctance Torque Synchrocheck
; n: l1 b$ i4 p0 J! u; z6 ~ * 96 - Autoloading Relay |
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