Bus 1 (Broken Delta) (Open Delta) Y or. 2 or 3 (3U, VT) (Uo, VT) (3I, CT) (Uo, VT) (1) (1) TOP OIL (W3) (W2) 52(2) (Io, CT) (2) (3IB, CT) Bus 2 52(3)

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Kevin Maxwell
6 years ago
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1 SHEET 1 OF 10 Bus 1 (Broken Delta) (Open Delta) Y or 50BF_TRBU 50BF_TRBU 50BF_TRBU OR PO2 50BF(1,2,3)_TRBU 2 or 3 51P_ 1_ 2_ 51N_ 50N_ 46_ FD-1_ 67/51P_ 51G_ 50G_ 67/51N_ 49T_ Breaker 1 Trip 86/94-1_ 52_EXE_OP 52_EXE_CL 86/94-1_ OR CB1_POSITION_ SO1 HSO1 PO3 52 (3U, VT) (Uo, VT) (3I, CT) 59G Load Prof T P 60 67/ 51P 81LS H-1 81LS H-3 50BF 81LS H-2 81LS H N ² 51P 51P_ 1_ 2_ 51N_ 50N_ 46_ FD-2_ 49T_ 51G_ 50G_ Breaker 2 Trip 87T_ 87LOZREF_ 86/94-1_ 52_EXE_OP CB1_POSITION_OPEN OR 52_EXE_CL OR 86/94-1_ INPUT 7 INPUT 8 PO1 HSO1 PO4 HSO2 STTUS 86T S: (W3) (W1) TOP OIL 52 3 (W2) (Uo, VT) 2 (Io, CT) (3IB, CT) Meas V0 Calc V0 2 Neg Seq Volt 1 50G 51G 37 REF 46 Calculated Ground Functions 50BF 1 67/ 50N 32N 50N- 51N BF N 51P CB2_POSITION_ 51P_ 1_ 2_ 51N_ 50N_ 46_ FD-3_ 49T_ 51G_ 50G_ Breaker 3 Trip 86/94-1_ 52_EXE_OP CB2_POSITION_OPEN 52_EXE_CL OR 86/94-1_ INPUT 5 INPUT 6 HSO2 SO3 HSO3 STTUS Bus (3IC, CT) 2 I_VL2 (RTD I_VL3 (RTD I_VL3 (RTD I_VL2 (RTD WINDING_TEMP 38-1 TOP_OIL_TEMP 38-2 MX N BF 50N- 1 Calculated Ground Functions 50BF N 51P 87T CB3_POSITION_ INPUT 3 STTUS FD- 1 FD- 2 FD- 3 50N BF 50N- 1 51N CB3_POSITION_OPEN Calculated Ground Functions INPUT 4 Notes: 1. Rotary Switch emulates drop down menu for "Pol Signal Sel" parameter setting in PCM600. Switch position shown for default setting (Neg Seq Volt). Bus 3 2. "Pol Signal Sel" parameter setting Calc Vo, 59N function not applicable for open delta connected VTs. SINGLE LINE DIGRM (TYPICL) RELY ORDER CODE: NTBBBB2FFE1BNN1XF

2 SHEET 2 OF 10 General Notes: 1. Style and code numbers for FT-1 switches provide black covers and handles, screw terminals and standard depth. Poles selection follows arrangement shown in this drawing set. For custom designs, different selection options can be made by using FT-1 configurator at ft1switch.com 2. Refer to 620 series NSI Installation Manual for relay and cutout dimensions ( Document ID: 1MC iB, Revision:, Product version 2.0) FRONT PNEL ELEVTION NTBBBB2FFE1BNN1XF RELY ORDER CODE:

3 B C D E F G H I J GROUND VOLTGE VG 87T_/87LOZREF_(PO1) 50BF(1,2,3)_TRBU(PO2) 86_94-1_/52_EXE_OP(PO3) 52_EXE_CL(SO1) 86_94-1_(HSO1) CB1_POSITION_(IN7) CB1_POSITION_OPEN(IN8) B C D E F G H I J (CT CURRENTS ND BUS 1 PHSE POTENTILS) (CB 52 BINRY I/O ) ND BUS 1 GROUND POTENTIL) FT-1 SWITCHES RRNGEMENT NTBBBB2FFE1BNN1XF RELY ORDER CODE: I IB IC PHSE VOLTGE V PHSE VOLTGE VB PHSE VOLTGE VC FT-1/TS4 B C D E F G H I J FT-1/TS (CT CURRENTS ND TRNSFORMER NEUTRL CURRENT) B C D E F G H I J FT-1/TS (CB 52 BINRY I/O ND POWER SUPPLY) RELY POS. VDC RELY NEG. VDC 86/94-1_/52_EXE_OP(PO4) 52_EXE_CL( HSO1) 86/94-1_(HSO2) CB2_POSITION_(IN5) CB2_POSITION_OPEN(IN6) I IB IC GROUND CURRENT IG B C D E F G H I (CT CURRENTS ) B C D E F G H I (CB 52 BINRY I/O) 86/94-1_/52_EXE_OP(SO3) 52_EXE_CL( HSO2) 86/94-1_(HSO3) CB3_POSITION_(IN3) I IB IC J J SHEET 3 OF 10 CB3_POSITION_OPEN(IN4) FT-1/TS3 FT-1/TS6

4 SHEET 4 OF 10 BUS 1 Broken Delta Open Delta * FT-1/TS1 RET620 X115 FT-1/TS4 FT-1/TS1 X Transformer WYE VT CONNECTION 'VT connection' setting = 'Wye') * For relay voltage connections shown set nalog input Voltage 'VT connection' setting to Wye' for metering to work correctly. Refer to application manual for alternate connections to relay for open delta connections using 'Delta' VT connection setting. C SCHEMTIC- BUS 1, CB52 NTBBBB2FFE1BNN1XF RELY ORDER CODE:

5 SHEET 5 OF 10 Circuit Breaker 52 FT-1/TS2 RET620 X Circuit Breaker 52 Bus 2 NOTE: Connections shown are for a 30. NSI standard autotransformer. C SCHEMTIC - CB52, TRNSFORMER NTBBBB2FFE1BNN1XF RELY ORDER CODE:

6 SHEET 6 OF 10 Transformer 52 FT-1/TS3 RET620 X115 Bus 3 C SCHEMTIC - CB52, BUS 3 (TYPICL) NTBBBB2FFE1BNN1XF RELY ORDER CODE:

7 RELY POS. VDC BREKER 52 POS. VDC DC SCHEMTIC: INPUTS BREKER 52 POS. VDC BREKER 52 POS. VDC 50BF_1/2/3_ POS(+VDC) X105 X110 X130 87T_ 87LOZREF_ 50BF_TRBU 50BF_TRBU 50BF_TRBU SO1 52_EXE_CL PO3 86/94-1_ 52_EXE_OP 86/94-1_ 52_EXE_OP 86/94-1_ 86/94-1_ 86/94-1_ 52_EXE_CL 52_EXE_CL 86/94-1_ 52_EXE_OP FT-1/TS5 FT-1/TS5 FT-1/TS4 FT-1/TS5 FT-1/TS6 FT-1/TS5 FT-1/TS6 50BF-1/2/3_ CKT RELY NEG. VDC BREKER 52 NEG. VDC BREKER 52 NEG.VDC BREKER 52 NEG. VDC DC SCHEMTIC: INPUTS DC SCHEMTIC - OUTPUTS ND PS (TYPICL) RELY ORDER CODE: SHEET 7 OF 10

8 RELY POS. VDC DC SCHEMTIC: POWER SUPPLY ND OUTPUTS BREKER 52 POS. VDC BREKER 52 POS. VDC BREKER 52 POS. VDC 52a 52b 52a 52b 52a 52a BI3 CB3_POSITION _ RELY NEG. VDC DC SCHEMTIC: POWER SUPPLY ND OUTPUTS BREKER 52 NEG. VDC BREKER 52 NEG.VDC BREKER 52 NEG. VDC DC SCHEMTIC - INPUTS (TYPICL) RELY ORDER CODE: SHEET 8 OF 10

9 SHEET 9 OF 10 CONNECTION DIGRM - RELY RELY ORDER CODE: NTBBBB2FFE1BNN1XF

10 SHEET 10 OF 10 CONNECTION DIGRM - FT-1 SWITCHES RELY ORDER CODE: NTBBBB2FFE1BNN1XF

(Open Delta) Y or. (Broken Delta) 2 or 3 CLOSE (3U,VT) (Uo,VT) (1) 52(1) (3I, CT) (W1) (Uo,VT) (W2) (W3) 52(2) (Io, CT) (2) (3IB, CT) Bus 2 52(3)

(Open Delta) Y or. (Broken Delta) 2 or 3 CLOSE (3U,VT) (Uo,VT) (1) 52(1) (3I, CT) (W1) (Uo,VT) (W2) (W3) 52(2) (Io, CT) (2) (3IB, CT) Bus 2 52(3) SHEET 1 OF 10 RET620_NTB2FFExxxNx1xx RET620 V2.0 NSI Functional pplication (B) 50BF_TRBU 50BF_TRBU 50BF_TRBU OR PO2 Bus 1 50BF (1,2,3)_TRBU (Broken Delta) (Open Delta) Y or 2 or 3 RET620 V2.0 NSI Functional