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List of Device Numbers/ N3 g* `/ E" `; |2 T- z% |
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* 1 - Master Element, y4 D9 m( K! h3 B% w7 t* a' l. ~
* 2 - Time Delay Starting or Closing Relay
1 k0 j# c+ e; T: ]9 x7 e * 3 - Checking or Interlocking Relay
% y p0 o$ B5 U; z$ D * 4 - Master Contactor" \# S! S n' b' z8 [. ^0 A
* 5 - Stopping Device
. f, g* G- f# X' x N- C1 b * 6 - Starting Circuit Breaker
; w" [* G1 Q0 _9 h2 S4 }+ H2 M* F6 m) O * 7 - Anode Circuit Breaker
& V* }, C. V& z * 8 - Control Power Disconnecting Device1 z; |: x) M0 r; e
* 9 - Reversing Device$ u) o8 F5 d$ {: }: ?% _- ]! h
* 10 - Unit Sequence Switch
$ }) {' a' Q4 n2 M * 12 - Overspeed Device
( c$ ]6 `1 Q+ X1 b ~8 S. I * 13 - Synchronous-speed Device f0 X8 c, f& v6 O- m* j( J' R, t) ~
* 14 - Underspeed Device
% K3 h; P& d: D! F: X" z, ]( ^) Q * 15 - Speed - or Frequency-Matching Device
& @* G1 X& Z* _ * 21 - Distance Relay! U7 S! `) X. E& R$ c: N
* 23 - Temperature Control Device0 E% n$ q2 f: u6 F* G
* 25 - Synchronizing or Synchronism-Check Device
0 Y1 \5 l; {2 x$ I$ i) r% a * 26 - Apparatus Thermal Device
: l) m3 Y0 ]! _0 [4 p * 27 - Undervoltage Relay
" i% u* \9 R. F- Q+ F * 29 - Isolating Contactor
4 j9 k6 J u( {; w* n( L * 30 - Annunciator Relay
7 C3 M, t3 O7 a7 m5 j * 32 - Directional Power Relay
& a0 `( `9 i2 g& ~* A * 36 - Polarity or Polarizing Voltage Devices
, {0 G) b1 p" X& [- G, M * 37 - Undercurrent or Underpower Relay+ Z+ J* e- n; p: ^: ^2 [
* 38 - Bearing Protective Device7 C2 y- J3 o* Z! j
* 39 - Mechanical Conduction Monitor- O+ O/ f1 i) A% m4 r
* 40 - Field Relay1 E+ V4 P' s8 s3 v* S
* 41 - Field Circuit Breaker
. s2 u( C: h4 P4 A * 42 - Running Circuit Breaker5 P! B# }+ j2 t% t( j d
* 43 - Manual Transfer or Selector Device5 u; H8 o. |4 n, M
* 46 - Reverse-phase or Phase-Balance Relay# m& c, D" [; a' B" B
* 47 - Phase-Sequence Voltage Relay
" {2 @% l7 P$ g( c * 48 - Incomplete-Sequence Relay
5 m' I: r! _& W: W) @ * 49 - Machine or Transformer Thermal Relay
2 _0 m8 Y3 s* m+ N* k$ V9 `( o& S * 50 - Instantaneous Overcurrent/ x, f# Y1 s, n5 }6 G( ^
* 51 - AC Time Overcurrent Relay+ u# i# I9 y3 \& P4 U' |8 K; K
* 52 - AC Circuit Breaker; q# a& B" m$ ?: x8 g& ~
* 53 - Exciter or DC Generator Relay& ?0 u& d0 w! Z/ o+ J; ~0 Z
* 54 - High-Speed DC Circuit Breaker
6 O3 l* C8 o0 T z8 b ^ * 55 - Power Factor Relay# @& A' l9 N4 H. J( ]2 D3 @% y
* 56 - Field Application Relay
, [6 W P2 e) r4 _" J) I* q' h * 59 - Overvoltage Relay! B+ l0 L8 V" O4 W
* 60 - Voltage or Current Balance Relay
' H8 d& j) r6 f% z! A * 61 - Machine Split Phase Current Balance
; M( m3 M0 O. e. B * 62 - Time-Delay Stopping or Opening Relay9 e* s) ^* S; e5 n5 R* {8 \3 w( f' c
* 63 - Pressure Switch
0 G: f& @2 j" I$ Q5 N; T! \* L3 J& Y * 64 - Ground Detector Relay* ~ X9 U; ^; [4 K7 ~' N* h$ P3 ]
* 65 - Governor
. f- g6 B' v% @ * 66 - Starts per Hour
3 t0 K* N, ^* w' p. z8 H * 67 - AC Directional Overcurrent Relay
) J) {1 t" p2 A. x, N * 68 - Blocking Relay3 Y8 N2 e, Z) c' Y( u
* 69 - Permissive Control Device
; x7 M/ h) D& W6 V# {$ v5 w3 Q w * 71 - Level Switch
) P0 f, u# C' \. M- N& o7 p7 c2 R * 72 - DC Circuit Breaker5 ]4 \! a, T6 {4 H
* 74 - Alarm Relay# {$ a' b' n+ k2 E1 K8 w$ G7 P/ W
* 75 - Position Changing Mechanism
5 k. g! H [/ V4 W+ S. _& v n) M * 76 - DC Overcurrent Relay" }& o# @- e! [/ Q: _& T0 v
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay3 i9 \# \( r* {- A4 X9 H
* 79 - AC-Reclosing Relay" G ~; ?: _6 o G# Z$ `( S
* 81 - Frequency Relay
( O0 _) y3 C* }* q$ a" H * 83 - Automatic Selective Control or Transfer Relay7 G, l9 D. ~2 i9 F, L* T5 `; A% f
* 84 - Operating Mechanism
1 j# g5 K/ C5 n$ B) ~ * 85 - Carrier or Pilot-Wire Receiver Relay2 b3 ]$ l S, V: E5 U! ]
* 86 - Lockout Relay
0 `+ T5 K _$ Z+ v. U# s1 t * 87 - Differential Protective Relay/ _1 u, R; k+ M! b9 L" D
* 89 - Line Switch9 x8 E9 v- M) l4 V
* 90 - Regulating Device4 m( ]% Y E" l- r
* 91 - Voltage Directional Relay
; `9 h# f- U* M0 Y' C * 92 - Voltage and Power Directional Relay" ~0 N5 u) `7 U: T- i
* 94 - Tripping or Trip-Free Relay6 e. X( E- T6 k& b6 @7 E
* 95 - Reluctance Torque Synchrocheck4 ^/ p: o, {/ l5 o
* 96 - Autoloading Relay |
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