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List of Device Numbers
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3 V j7 }2 u& x. E8 F" T+ X7 S * 1 - Master Element
1 U& z( c) T- V* K * 2 - Time Delay Starting or Closing Relay4 v+ m7 s+ f% W7 {8 @$ T
* 3 - Checking or Interlocking Relay
4 r* ?+ ?" ^6 R, Z! J3 N * 4 - Master Contactor( c2 D% |( s( z2 o0 B, D" G. @
* 5 - Stopping Device5 W+ y, {4 {0 K/ q6 v& ^
* 6 - Starting Circuit Breaker4 @0 m- I' b8 V* ]* v4 U
* 7 - Anode Circuit Breaker: T" N' D2 c$ x9 w7 G
* 8 - Control Power Disconnecting Device
' R* R; G0 K) a0 }5 i& {& k2 b$ S * 9 - Reversing Device
$ z; s, l( e5 a * 10 - Unit Sequence Switch
4 C" v. v; `. V; p! s * 12 - Overspeed Device
9 Q% o7 @' m6 B) h) s * 13 - Synchronous-speed Device9 k) L! {# x+ k4 J0 ?
* 14 - Underspeed Device
6 t8 K( t1 Z. Q3 F * 15 - Speed - or Frequency-Matching Device
2 t- l% W3 r2 Q, g* y' ^; V4 Y6 o * 21 - Distance Relay
" C* f( A* N8 y4 p1 W+ W8 d0 d * 23 - Temperature Control Device9 B! r- b; n5 A
* 25 - Synchronizing or Synchronism-Check Device
1 a: e' s( S$ T6 I1 J2 ?' O * 26 - Apparatus Thermal Device
- g: ~% Y) H4 Z: C% [& Q * 27 - Undervoltage Relay
& k- r; J; M2 L% R * 29 - Isolating Contactor
5 k S" i0 s' x( D3 n f * 30 - Annunciator Relay
9 P' j; \3 d6 Q * 32 - Directional Power Relay. m8 P- `( o) k; G
* 36 - Polarity or Polarizing Voltage Devices
, t& j2 g2 H$ r- h% X ^8 I * 37 - Undercurrent or Underpower Relay. n& Q0 K9 h' V5 p+ X( E: z
* 38 - Bearing Protective Device- T, Z/ ], }. M4 ^! y" ]: A$ N
* 39 - Mechanical Conduction Monitor4 z* r3 ?! Z* a7 m, i
* 40 - Field Relay
& t! }( G3 V6 } w2 q* Z, V * 41 - Field Circuit Breaker
$ F E7 z# t/ ?/ V- k9 E( o * 42 - Running Circuit Breaker
5 [# x0 `3 R& P: `, I. F! @( L * 43 - Manual Transfer or Selector Device
! I. k( d7 T/ I) g6 h: p4 P; F * 46 - Reverse-phase or Phase-Balance Relay
* V' F+ \ F$ B1 w5 ^( [8 C5 Z * 47 - Phase-Sequence Voltage Relay9 J. K/ e' t' X: V8 x! h
* 48 - Incomplete-Sequence Relay8 L; V# Z# Z8 \( o( C( l6 S9 L2 ]
* 49 - Machine or Transformer Thermal Relay0 w* O$ e. a: A1 f% t* V; b" ?; s) g
* 50 - Instantaneous Overcurrent
5 Z/ h& W1 c9 ^/ U" f3 Q * 51 - AC Time Overcurrent Relay
* P5 i+ e/ S; u/ N& }. Q: N * 52 - AC Circuit Breaker
8 @5 R' W# {0 e; H% l/ @ * 53 - Exciter or DC Generator Relay- B9 }- I0 C. o% D0 G' p X
* 54 - High-Speed DC Circuit Breaker
8 F: {* m" s% N) C' k( a * 55 - Power Factor Relay
7 {" j( _/ N& X * 56 - Field Application Relay
; ^6 I9 [" [* b ^# I * 59 - Overvoltage Relay
6 j+ ^" z, |# l6 M * 60 - Voltage or Current Balance Relay
, Z% P% m& @6 x# ] * 61 - Machine Split Phase Current Balance8 w# p: Z4 i% O4 S# ?3 L. ]
* 62 - Time-Delay Stopping or Opening Relay
U: k! n" e- V' {& @! ?5 s * 63 - Pressure Switch: T9 y3 |+ ^, O: O0 Z& P
* 64 - Ground Detector Relay
3 o n9 P+ M; A1 Y. r * 65 - Governor# |- {0 x6 A c& L6 d5 C$ `& C
* 66 - Starts per Hour. f% \! \4 f! H) _
* 67 - AC Directional Overcurrent Relay, b1 M9 O& X* j$ t, L# ]3 f6 {
* 68 - Blocking Relay
0 H, P, [7 k# W; T * 69 - Permissive Control Device
) r. s6 [4 B) t" s) D$ j * 71 - Level Switch
" @* o2 w" C' W5 ^- D* A# V * 72 - DC Circuit Breaker
0 G/ O6 D* Q5 p * 74 - Alarm Relay* H+ q$ x. {3 ^$ N5 Q6 F
* 75 - Position Changing Mechanism
5 a8 T8 f& E/ o0 g0 \2 |0 a * 76 - DC Overcurrent Relay
5 X# q. x4 ?2 _ * 78 - Phase-Angle Measuring or Out-of-Step Protective Relay4 v# _+ d @( Q1 ^
* 79 - AC-Reclosing Relay
: b9 _0 C: C9 U6 K) G7 e$ ~ * 81 - Frequency Relay$ d7 K; A, N* q# Y, ?4 u
* 83 - Automatic Selective Control or Transfer Relay
9 v4 E k C; I6 ] ~( j; g, y * 84 - Operating Mechanism
& {) N4 \ L$ B5 V$ l * 85 - Carrier or Pilot-Wire Receiver Relay
4 _* v; ^! N( v& [# O: G * 86 - Lockout Relay q) J- L/ ]1 ~1 w, Y
* 87 - Differential Protective Relay) ]; Y" U6 L: |+ U1 T$ F- t$ N: T' e
* 89 - Line Switch
! z3 r m: P; \1 C) n# i& g * 90 - Regulating Device! o7 t/ O% v8 {+ M+ c" l8 d% b
* 91 - Voltage Directional Relay% N+ ^* R6 e% R2 X$ M* [' J( W
* 92 - Voltage and Power Directional Relay9 {: _8 o% E S$ f# y
* 94 - Tripping or Trip-Free Relay7 _& Y) d5 @* P2 ~* d& U* E" ~
* 95 - Reluctance Torque Synchrocheck
6 m( b7 A. n# D1 a+ l8 L& P0 r * 96 - Autoloading Relay |
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