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List of Device Numbers/ R7 c4 }' w/ O( Q( ?/ e+ Z
Click to learn more... T6 s; o+ n/ `
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* 1 - Master Element1 p' k2 R# _! B
* 2 - Time Delay Starting or Closing Relay; W3 w8 K4 i3 p2 P1 p7 a
* 3 - Checking or Interlocking Relay) o' U- C0 `& Z5 e7 k; F& B9 u' l
* 4 - Master Contactor
, ?$ j! i( { Y; S * 5 - Stopping Device
* z1 o# a% G' I * 6 - Starting Circuit Breaker, T& W- i z. v! y7 W1 a
* 7 - Anode Circuit Breaker! l, J! g9 U6 Z6 D
* 8 - Control Power Disconnecting Device
# p% a6 `; O4 _$ l# L * 9 - Reversing Device
; ^6 c4 n' K3 o B5 i+ u2 R * 10 - Unit Sequence Switch
* `& m* c5 m$ t3 ^8 K * 12 - Overspeed Device, I: H0 I& k! j/ ~8 L3 P- u1 |
* 13 - Synchronous-speed Device
) ~: o# b2 V9 n+ C0 `- z * 14 - Underspeed Device& S y. L9 K' I# P' h
* 15 - Speed - or Frequency-Matching Device
# d& L. |& k7 s( c8 c) { * 21 - Distance Relay
( x, V. [9 e" L* C; s& o * 23 - Temperature Control Device; _- @; E! g: |9 y9 b
* 25 - Synchronizing or Synchronism-Check Device5 @' J0 y% Y/ g, q
* 26 - Apparatus Thermal Device
% n+ Q: i% W+ }) q5 X8 q8 B9 o * 27 - Undervoltage Relay/ V+ P# Y1 h( R& x
* 29 - Isolating Contactor# B U% N; b! ~
* 30 - Annunciator Relay; M$ ~7 Q( g: @& M3 k# B7 j
* 32 - Directional Power Relay
9 _" @- J8 f( U * 36 - Polarity or Polarizing Voltage Devices3 v4 s% {2 i9 x- B7 _
* 37 - Undercurrent or Underpower Relay
- F& V0 f2 ]- |& o; z * 38 - Bearing Protective Device, w0 X9 a. L/ O1 }# w
* 39 - Mechanical Conduction Monitor
l; T4 Q6 f7 w; q: s8 ]7 j * 40 - Field Relay% _: d' H* V% F: R
* 41 - Field Circuit Breaker
! k; E/ W6 N6 r! D * 42 - Running Circuit Breaker
+ [, a, |8 L7 H3 u+ ^ * 43 - Manual Transfer or Selector Device; f& V/ z9 B* q7 q. x
* 46 - Reverse-phase or Phase-Balance Relay
% n X: T: A9 T9 b2 @: ^ * 47 - Phase-Sequence Voltage Relay$ S/ R/ F r- S% H
* 48 - Incomplete-Sequence Relay4 _9 |3 p/ U4 Q, b( k
* 49 - Machine or Transformer Thermal Relay
9 Y+ C: G+ n6 Q6 k0 y# C * 50 - Instantaneous Overcurrent
`7 `, U! V4 g& H" k * 51 - AC Time Overcurrent Relay
& U w* W5 Q+ D6 w8 s1 P. d * 52 - AC Circuit Breaker
* Y9 |- f" I1 E. M) k6 `" F- _ * 53 - Exciter or DC Generator Relay
& P$ V& R5 G5 x2 U6 X * 54 - High-Speed DC Circuit Breaker
- a: ?" k0 f9 d- D$ x" N( f9 ? * 55 - Power Factor Relay
' u$ a7 y9 f' u4 Z * 56 - Field Application Relay6 d; ?& q- A' s% \
* 59 - Overvoltage Relay1 H( L. ]. f# I/ W$ @6 T- g1 e
* 60 - Voltage or Current Balance Relay7 ^' z+ a/ A# g* X$ X4 n7 V
* 61 - Machine Split Phase Current Balance8 y1 J R9 L2 i$ I; N1 J
* 62 - Time-Delay Stopping or Opening Relay7 V$ Z# u* S) V; U4 j& \, R
* 63 - Pressure Switch/ B/ p* u0 n, w5 [; ?) Q4 O% ?" }
* 64 - Ground Detector Relay' H% |# ]! w" p2 a
* 65 - Governor5 A1 r2 h3 d0 P @* P5 I7 S
* 66 - Starts per Hour
$ k _4 B& y6 v9 N3 X0 K * 67 - AC Directional Overcurrent Relay
: i8 e1 Z, B* V * 68 - Blocking Relay
: t4 t) r5 m: q) m- M; K* u) ^8 Q * 69 - Permissive Control Device, g' F7 C4 K9 u) b; w
* 71 - Level Switch6 L* Y0 |5 O1 ^* |0 v
* 72 - DC Circuit Breaker
- A4 e, V3 s; C. w. y' H0 | c; U * 74 - Alarm Relay
. [& `8 n" P; F2 o' X0 a * 75 - Position Changing Mechanism8 l8 n q; ]8 R8 Y
* 76 - DC Overcurrent Relay
( Z0 p7 e7 Z, Y) V * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay
f7 D: L6 d4 j4 ]+ f * 79 - AC-Reclosing Relay) z& k4 X3 g2 ~1 W- }/ p) W; l/ ^
* 81 - Frequency Relay- H9 ~0 B. ]4 S p# i
* 83 - Automatic Selective Control or Transfer Relay( Q0 k$ c H" @2 u; X% d4 c& \
* 84 - Operating Mechanism! v2 C0 T1 O9 I
* 85 - Carrier or Pilot-Wire Receiver Relay
7 s0 K- i7 w9 h! S' A * 86 - Lockout Relay' O% r, Y7 ~) O& j. T' k' [. y
* 87 - Differential Protective Relay
& I/ w j. q3 I( S3 b * 89 - Line Switch
" C+ f" C9 O! X# u' W3 W6 {0 O * 90 - Regulating Device
; f( {8 _& {* a+ u * 91 - Voltage Directional Relay9 w, ~: S1 c" Z# }6 c* Y
* 92 - Voltage and Power Directional Relay
) Y7 G; Q; [# p" G% j * 94 - Tripping or Trip-Free Relay
0 e5 f1 V4 I9 t; @! r: S* q; q * 95 - Reluctance Torque Synchrocheck
) h+ u9 A2 d+ A/ B3 B * 96 - Autoloading Relay |
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