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List of Device Numbers2 q; k! F4 R2 D, i% j
Click to learn more...% z |" `) \- ? B
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* 1 - Master Element* w7 V- \- _6 A' k, T$ [( D
* 2 - Time Delay Starting or Closing Relay
! F8 `3 [& m* x1 c- C5 L * 3 - Checking or Interlocking Relay6 A0 G1 |# l3 m' V
* 4 - Master Contactor
; o6 y8 e& C8 Y* t4 ?9 x * 5 - Stopping Device6 b* K7 W# \3 f. C2 ~; c; Y$ x! j' J% ?
* 6 - Starting Circuit Breaker' v7 p. Y- C4 D2 {
* 7 - Anode Circuit Breaker U- m" V0 ?( F. K7 w) _
* 8 - Control Power Disconnecting Device
! L) \: c2 q$ E0 q * 9 - Reversing Device6 J' s+ t, {. [# h$ e$ j
* 10 - Unit Sequence Switch
8 s9 c5 W M/ i/ d* O' z! E * 12 - Overspeed Device" w% Z& W) `5 e5 ]
* 13 - Synchronous-speed Device
$ p* V! Q* x/ G- M+ M4 H, L, X& O- M * 14 - Underspeed Device" D9 n+ r: k5 f3 u. n$ J) Q/ w' u
* 15 - Speed - or Frequency-Matching Device4 x; ~8 d# H0 c) o/ e9 \
* 21 - Distance Relay. ?( a& ?* `4 I! g$ E! b7 _( o
* 23 - Temperature Control Device
: S0 z1 L& \# ^ * 25 - Synchronizing or Synchronism-Check Device- l% y. l! H2 h
* 26 - Apparatus Thermal Device; N+ U9 q( l5 \ \( E# N1 V o
* 27 - Undervoltage Relay
O8 t8 _4 T7 l) F: }; r9 V6 n* G * 29 - Isolating Contactor4 s$ Z6 _1 A( v0 [
* 30 - Annunciator Relay0 A+ }# a4 ^8 V, L0 [5 ^& U
* 32 - Directional Power Relay# D5 [4 m: c$ }
* 36 - Polarity or Polarizing Voltage Devices
+ N2 Y" w/ I& R( O * 37 - Undercurrent or Underpower Relay. h& ?, i' r2 S1 V) m6 ]
* 38 - Bearing Protective Device4 r L1 _ L4 F3 |; _+ Y
* 39 - Mechanical Conduction Monitor& n; F F0 W+ n! i8 `( M
* 40 - Field Relay
8 E5 E( L; H) I5 @+ H * 41 - Field Circuit Breaker8 F' [6 k+ [( {
* 42 - Running Circuit Breaker0 O8 [* [9 U1 Y
* 43 - Manual Transfer or Selector Device8 ^8 ]# X0 ]8 K$ H; ~1 n1 j
* 46 - Reverse-phase or Phase-Balance Relay# ~. z/ F# {" L3 L: J5 {
* 47 - Phase-Sequence Voltage Relay
8 w, _: j' O) o; N% B0 B& a. h- G6 L- _ * 48 - Incomplete-Sequence Relay+ Z" z: v- `- y! E
* 49 - Machine or Transformer Thermal Relay4 u4 J+ S' c% Z. O M
* 50 - Instantaneous Overcurrent3 I0 @, U% M: ?) f+ r: F; T
* 51 - AC Time Overcurrent Relay/ Z% V, X' E3 B; @. ~) s5 T
* 52 - AC Circuit Breaker
4 m( x1 S% ]) s7 w- a# B N9 Z- U * 53 - Exciter or DC Generator Relay
8 m- d: P; k; n: {7 Y% L" ?0 E * 54 - High-Speed DC Circuit Breaker
9 L4 z2 B+ V* |' g# w * 55 - Power Factor Relay
/ f7 n7 V4 p ?; l) c * 56 - Field Application Relay5 v8 H$ d9 O- g
* 59 - Overvoltage Relay
: X+ x4 y4 g" g0 k2 O8 e3 s1 T * 60 - Voltage or Current Balance Relay
3 S/ z4 N( H: t6 |" Z5 o * 61 - Machine Split Phase Current Balance
5 s5 x7 }& l( z4 f/ e * 62 - Time-Delay Stopping or Opening Relay
( T4 ?0 z" }& z# O9 h * 63 - Pressure Switch& R& G6 w# G; g0 K, m
* 64 - Ground Detector Relay5 y: S& h E; j$ `( j' [/ m5 c
* 65 - Governor
: E* w2 D( R# L' [3 w9 p$ K: E * 66 - Starts per Hour
) F/ o. d5 n0 C/ K * 67 - AC Directional Overcurrent Relay
( R* _8 x' t" H& I) [2 P5 B- I * 68 - Blocking Relay
) W" {7 a- N/ X1 {7 B * 69 - Permissive Control Device+ j5 o1 l3 Z+ t- k: g
* 71 - Level Switch
& ?' o- P) ]1 m& F# Y6 G * 72 - DC Circuit Breaker, c% T0 |, c; e: ?, Y2 q
* 74 - Alarm Relay
2 p; o: N7 y+ y. _' Z& I * 75 - Position Changing Mechanism4 J. n8 C% |7 h; E$ O
* 76 - DC Overcurrent Relay
~" `; I# S7 X/ D * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay# z7 k! M% M2 u0 K4 s: ^" D4 Y2 ~
* 79 - AC-Reclosing Relay% B6 `8 n! a2 n6 X
* 81 - Frequency Relay
, ~9 E; a! B: `: s * 83 - Automatic Selective Control or Transfer Relay
0 Y. @$ f: G$ \( a * 84 - Operating Mechanism
+ z! g% c" ~% j) ^ * 85 - Carrier or Pilot-Wire Receiver Relay# O; T' a% i" | Z( V5 _" r
* 86 - Lockout Relay
$ M2 p, U" D V3 K4 K9 Z; z * 87 - Differential Protective Relay- L$ z$ z2 J/ p4 @3 L
* 89 - Line Switch7 _/ P4 g2 T, h6 R% X
* 90 - Regulating Device- r/ P \% k5 F. v9 l; e6 ?) V
* 91 - Voltage Directional Relay% L1 M, g- ^: f: l3 n* b5 D2 L3 s1 K
* 92 - Voltage and Power Directional Relay
, [7 ?+ O; Y) W! Y' ? * 94 - Tripping or Trip-Free Relay
- E d: G, Q4 R1 Q% o! c8 U * 95 - Reluctance Torque Synchrocheck
4 M1 a8 B5 j9 `& y8 f * 96 - Autoloading Relay |
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