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List of Device Numbers4 t7 y2 ^% ~8 p, q. V, x
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* 1 - Master Element; a( S$ n- u/ s# k; p, B
* 2 - Time Delay Starting or Closing Relay: q0 }; D, ~. n- l6 d5 x, h! O1 n/ U
* 3 - Checking or Interlocking Relay+ u/ [4 S/ I" I0 G
* 4 - Master Contactor4 F n `4 _( J k
* 5 - Stopping Device
* T, \3 \1 Q- A' u; \: b * 6 - Starting Circuit Breaker
; B1 s6 o2 o$ e6 N8 e+ `& C * 7 - Anode Circuit Breaker! E8 N# ^, [/ f! j4 S! `
* 8 - Control Power Disconnecting Device- w; E0 i% A7 ?9 d( E2 F
* 9 - Reversing Device
: o. a9 _; e: e8 o0 `) C2 n * 10 - Unit Sequence Switch; B P/ }7 i( J
* 12 - Overspeed Device( ^5 v! S* B, d) D' O" i) T+ `- ?
* 13 - Synchronous-speed Device6 O: n" k% R( b0 ^3 {0 T) }
* 14 - Underspeed Device
+ G% Q* q4 H+ M/ S* W% K$ F- T * 15 - Speed - or Frequency-Matching Device! C* x6 S; X( F# ?5 Z# |/ z8 b1 T
* 21 - Distance Relay
: l) I3 e, _% o. z5 ^ * 23 - Temperature Control Device0 e9 Q3 _' F# ^/ x" ~
* 25 - Synchronizing or Synchronism-Check Device
0 N n' T, {( H1 Y1 @* G; _ * 26 - Apparatus Thermal Device2 x. p9 L+ `, L7 [) T" h
* 27 - Undervoltage Relay1 l3 U/ D! l: j
* 29 - Isolating Contactor, H: J) U! C4 P7 e) _" f. L0 `
* 30 - Annunciator Relay" d3 J1 z3 G/ A5 ]+ y
* 32 - Directional Power Relay
4 J. t) F9 X. I0 L# ] * 36 - Polarity or Polarizing Voltage Devices6 C* `3 |6 `4 v7 {
* 37 - Undercurrent or Underpower Relay
& W2 u0 r, D" E1 _8 x: u * 38 - Bearing Protective Device
. f7 \: C5 _/ q# t" Y * 39 - Mechanical Conduction Monitor+ h! `$ x8 d* b% g
* 40 - Field Relay
c6 d( K2 [8 ` Q+ z * 41 - Field Circuit Breaker
P* X$ y8 Y3 v5 G" g; e& S * 42 - Running Circuit Breaker. b* l; w( ]. V; ]3 E
* 43 - Manual Transfer or Selector Device+ c2 H& z7 L+ K. `3 J
* 46 - Reverse-phase or Phase-Balance Relay# |$ m% p* E" |% u9 n3 _9 j0 W
* 47 - Phase-Sequence Voltage Relay/ M. Y" {+ D' [
* 48 - Incomplete-Sequence Relay
! w2 p8 y) n T/ i7 V * 49 - Machine or Transformer Thermal Relay
. E8 z1 S) n& I1 A/ X * 50 - Instantaneous Overcurrent
4 C N, s: x0 n4 e6 J * 51 - AC Time Overcurrent Relay S7 ~5 X4 j+ g! M* t! @5 _' O' L8 j
* 52 - AC Circuit Breaker. `& t3 `6 L, ` v4 a. v* |/ E
* 53 - Exciter or DC Generator Relay
) S* D; p" I1 B+ ^. m. a * 54 - High-Speed DC Circuit Breaker
5 e q' [* y& C2 e+ `5 h * 55 - Power Factor Relay5 r5 K$ y! M( v c b
* 56 - Field Application Relay/ h3 ]" K8 }' R: N: ^- \: P
* 59 - Overvoltage Relay
! k& A, K2 {* K% C8 u+ b * 60 - Voltage or Current Balance Relay6 W( h: E) J! d/ T
* 61 - Machine Split Phase Current Balance1 r2 [0 T* f' c$ H. g' p2 j1 M7 R
* 62 - Time-Delay Stopping or Opening Relay
6 l1 r4 `; U) h! t4 U' j* z* ~. C) q * 63 - Pressure Switch5 k6 o1 I& b3 P- c) e5 M+ M. M
* 64 - Ground Detector Relay
3 g, a; }# [" y- u; s1 F * 65 - Governor
2 q+ w, ^) `$ ?- R * 66 - Starts per Hour
1 O/ e9 ~. i# ?0 M6 q: k+ L4 m * 67 - AC Directional Overcurrent Relay
; T' Y1 e, B6 j) X' S * 68 - Blocking Relay
5 c- @' }2 H; g9 R1 s * 69 - Permissive Control Device/ s/ _* z" I$ p! m! ^
* 71 - Level Switch
+ Y% i, M( ?9 @6 s, z2 x * 72 - DC Circuit Breaker
1 ^1 L5 ^( {& \: c! `% G0 [ * 74 - Alarm Relay: k+ W4 K! _# m7 o
* 75 - Position Changing Mechanism5 ]0 P, Y% \2 U; f9 @3 O) \( N
* 76 - DC Overcurrent Relay7 `+ q4 ?' A& y% H* V' ^. r! t: z: U
* 78 - Phase-Angle Measuring or Out-of-Step Protective Relay' d5 V& U* @3 X) \
* 79 - AC-Reclosing Relay
: r9 b' e' f9 v" _ * 81 - Frequency Relay
2 r( l3 ]' k6 J, g8 l. o * 83 - Automatic Selective Control or Transfer Relay
' g( W) k. i+ E * 84 - Operating Mechanism/ C9 O, \$ W" Y: i1 e
* 85 - Carrier or Pilot-Wire Receiver Relay
) n) V. z, H6 H6 l& J! a/ `6 t! ` * 86 - Lockout Relay
) o* k/ r1 z! H9 A; V: F * 87 - Differential Protective Relay
; s( ]' U- Q# U9 J+ A5 } * 89 - Line Switch% \, b/ h& @5 Z" M, I
* 90 - Regulating Device
; q, y+ C+ ] t9 u! A6 W * 91 - Voltage Directional Relay7 r* C+ [; f% G0 _2 E$ w( H
* 92 - Voltage and Power Directional Relay) Y' \3 v" \) @' J1 P
* 94 - Tripping or Trip-Free Relay
# H7 x- g2 G. v% x' h * 95 - Reluctance Torque Synchrocheck V. n: V! e8 C, ]2 u$ {8 O
* 96 - Autoloading Relay |
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