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List of Device Numbers4 x3 `& t6 Y" C/ c# |
Click to learn more...7 l( R9 u/ S4 {/ }' L* z' p
8 b6 |$ ~; ~* w * 1 - Master Element
+ u, \, n/ K' x, }8 w# b9 H6 s3 o * 2 - Time Delay Starting or Closing Relay
" z6 T1 [' K3 x6 V/ i * 3 - Checking or Interlocking Relay
5 A% B: W) u' H * 4 - Master Contactor
6 [2 E5 p2 ^, V! s8 k1 L* [ * 5 - Stopping Device
9 P! u, j# U6 r2 L; y4 C * 6 - Starting Circuit Breaker0 _/ r9 J4 o' c+ p* T* G2 _2 W1 Q$ j
* 7 - Anode Circuit Breaker+ m; t/ Q, j" \3 ?/ w
* 8 - Control Power Disconnecting Device- |- ~, [3 U! o8 y" [! u# t4 c
* 9 - Reversing Device
4 _5 c4 U0 v% y5 u; l; |' a * 10 - Unit Sequence Switch! P. d0 k) c7 v" r6 K) X; A# y
* 12 - Overspeed Device
* g% F: @# N# x, ` * 13 - Synchronous-speed Device1 }; I+ X, Y) C: Y
* 14 - Underspeed Device/ J* z" W$ t# c
* 15 - Speed - or Frequency-Matching Device
/ x0 V& ~/ w- ]$ ?# Y * 21 - Distance Relay
' C% B5 F) R% k0 y4 E7 @) s3 D2 T * 23 - Temperature Control Device
/ ]2 s3 |7 E2 _5 v% G" _5 C * 25 - Synchronizing or Synchronism-Check Device
1 ?5 K5 R: Z& [- F8 `/ R# K * 26 - Apparatus Thermal Device
0 X; V/ e4 J7 [+ t * 27 - Undervoltage Relay
6 X" u( @% K8 ?* M! S/ q( m * 29 - Isolating Contactor
+ b, @* G; w4 a4 E * 30 - Annunciator Relay
4 Q; V/ {5 D2 e * 32 - Directional Power Relay
& N5 O6 l1 c, j; K, t * 36 - Polarity or Polarizing Voltage Devices
0 G7 H/ f1 k7 c! `- f( L * 37 - Undercurrent or Underpower Relay, D( d! J7 b* K1 a
* 38 - Bearing Protective Device
6 z/ i# Q+ i; {0 Q; O * 39 - Mechanical Conduction Monitor+ ]! Y+ I5 ?3 v5 ]& J$ w
* 40 - Field Relay' u# S' }3 d% L$ a% y7 g5 |, A2 M
* 41 - Field Circuit Breaker [" E# |8 Z3 o
* 42 - Running Circuit Breaker
( D. q: ~5 o/ K* ], O * 43 - Manual Transfer or Selector Device4 Q7 e4 r& s* {' e& r8 T
* 46 - Reverse-phase or Phase-Balance Relay$ X$ l4 z/ _; I8 z. ]( ]6 V
* 47 - Phase-Sequence Voltage Relay
7 _2 q' w4 G& r1 @8 V * 48 - Incomplete-Sequence Relay. B$ F5 V" ?7 @9 Y: s
* 49 - Machine or Transformer Thermal Relay( r6 m. Q0 q- U: |
* 50 - Instantaneous Overcurrent
6 ^6 K* Y- @& c4 h1 c4 t * 51 - AC Time Overcurrent Relay6 F& i" Q) r+ G, Z) ~& p
* 52 - AC Circuit Breaker
% z- d- @" W0 h2 g1 }' \; Q/ M& S* D * 53 - Exciter or DC Generator Relay" J; I) i5 h9 T2 K% I8 Y
* 54 - High-Speed DC Circuit Breaker
2 H( V# v6 t: s z * 55 - Power Factor Relay
( |) E- l: |: K- u$ [ * 56 - Field Application Relay
4 L! n% G% F- j/ i6 `9 j * 59 - Overvoltage Relay Y$ C/ a- n$ i
* 60 - Voltage or Current Balance Relay
5 R$ O4 r# d! s! Q6 ]6 A * 61 - Machine Split Phase Current Balance$ {$ \2 |5 j5 ?/ K% T
* 62 - Time-Delay Stopping or Opening Relay) ?/ b2 u2 f) f' d. F# C
* 63 - Pressure Switch- t9 C, i! ^0 Y: v$ u }
* 64 - Ground Detector Relay
6 \" |! `+ D/ g% S * 65 - Governor
( l; |. X" E; u4 Q- d4 a * 66 - Starts per Hour
) d& f* x% _. A X' u7 x4 S * 67 - AC Directional Overcurrent Relay; v" M& ^8 A/ E: b7 g
* 68 - Blocking Relay
) z, `% ]1 D2 k% @4 b( a3 X( n * 69 - Permissive Control Device
; Z2 v/ [; c6 s% d$ N# [ * 71 - Level Switch
7 Z( N+ j* [+ z4 n$ t! P( G" J * 72 - DC Circuit Breaker
) r c8 j% P2 z# G6 u * 74 - Alarm Relay
2 D: n( e: Y1 z+ @" C* c * 75 - Position Changing Mechanism) b5 F( U- w1 B" A% I* Z
* 76 - DC Overcurrent Relay
7 u, g. L& a* G6 Y' V1 I1 D) ?- r * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay9 _) N% D. V# u$ z4 Z8 u
* 79 - AC-Reclosing Relay8 p% X( t) m7 @) w1 G$ h, q \
* 81 - Frequency Relay) k) L, N6 B- H. r
* 83 - Automatic Selective Control or Transfer Relay( w# ~% t9 B: x1 s
* 84 - Operating Mechanism8 n+ O2 s L* B0 U0 q/ R
* 85 - Carrier or Pilot-Wire Receiver Relay* G: [0 l7 k4 E+ j( \
* 86 - Lockout Relay) C, h; h2 v8 N6 m+ S5 n
* 87 - Differential Protective Relay- R# `) f# r! m/ C" }6 L
* 89 - Line Switch
* C$ L5 r5 x# y/ t' q9 M * 90 - Regulating Device7 Z: B9 ~ v& L1 z2 \: I, @( h
* 91 - Voltage Directional Relay& q& M8 V: _& b; }7 {
* 92 - Voltage and Power Directional Relay
% \# k# U1 G5 ^8 J! H6 _$ f) U * 94 - Tripping or Trip-Free Relay" t/ l$ j R$ ^
* 95 - Reluctance Torque Synchrocheck1 x5 _& H: w; g; M% v' g
* 96 - Autoloading Relay |
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