+86 15359293870 2804538582@qq.com
Industrial equipment parts procurement network

NDBU-95C ABB Protects the DC output from voltage effects

$899.00

In stock

model:NDBU-95C

Order (minimum order quantity): 1

Payment: telegraphic transfer
Product origin: Sweden
Port of shipment: Xiamen, Fujian
Hotline: 18165687102

E-mail:2804538582@qq.com

The half controlled (1-Q) field exciters DCF803-0050 / DCF803-0060 include the SDCS-FEX-82,

two thyristor/diode power modules and auxiliaries (power supply, line reactor L1).

The full controlled (4-Q) field exciters DCF804-0050 / DCF804-0060 include the SDCS-FEX-81,

four anti-parallel thyristor power modules and auxiliaries (power supply, line reactor L1).

The control structure is similar to the SDCS-FEX-4 in single-phase operation. A micro controller is

used for controlling the field current and firing. The DC current is measured using an AC current

transformer

The control unit includes the following main blocks:

– Micro controller H8 for control and firing.

– Actual DC current measurement using an AC current transformer.

– High ohmic measurement of AC and DC voltage.

Residual resistance to ground = 3.5 M(DCF803

= 1.9 M(DCF804)

– RS485 interface and DCSLink interface to the converter’s controller board SDCS-CON-H01.

– The firmware of the field exciter is stored in a flash memory and contains:

– The PI current controller for the field circuit.

– The fault and reset logic.

– The synchronization and PLL function.

– The bridge reversal function (only DCF804-0050 / 0060).

All control parameters are set from armature converter via drive-to-drive communication. The field

current reference, actual field current, current control and status bit are cyclic sent via drive-to-drive

communication.

The field exciter is equipped with an autoscaling function of the burden resistors based on the

nominal field current of the motor.

Power part

The DCF803-0050 / 0060 is a half-controlled single-phase bridge. A half controlled bridge does not

need a free wheeling circuit.

The DCF804-0050 / 0060 is a full-controlled single-phase bridge. During normal operation it is fired in

half controlled mode to reduce the current ripple.

Full controlled bridges require separate freewheeling circuits. The firing control enables the

freewheeling of a thyristor if the DC voltage increases. See also parameters 28.62 and 42.67 in the

armature converter.

A MOV (Metal Oxide Varistor) protects the AC input against voltage spikes from the mains.

Another MOV protects the DC output against voltage

surges which can be caused by the field

winding of a DC machine.

The power section is equipped with a line reactor (L1). Thus an external line reactor is not needed.

Single-phase field exciters are typically supplied by autotransformers if the rated field voltage is less

than 60 % of the AC supply voltage.

 

 

NDBU-95C ABB Protects the DC output from voltage effectsillustration

 

The prices of all products of Zhangzhou Fengyun may fluctuate at any time. The specific price is subject to the customer service quotation. Please confirm the model, product, price and other details with the customer service before placing the order. Second-hand and brand-new products are sold in the store. Please contact the customer service for details.

 

NDBU-95C ABB Protects the DC output from voltage effectsillustration1

Recommended ABB related models:

ABB LD SYN-101 3BHE005555R0101 ABB NAMC-11 3BSE015488R1 ABB NPCT-01C
ABB LD800HSE 3BDH000320R02 ABB NBIO-21C ABB NPCU-01
ABB LDGRB-01   3BSE013177R1 ABB NBIO-21C 3BSE017427R1 ABB NPOW-42C
ABB LDGRB-01 3BSE013177R1 ABB NBIO-21CU ABB NS1860b-P 3BHB001336R0001
ABB LDMUI-001 61320946C ABB NBRA-659C  59006436 ABB NSD570
ABB LDMUI-01 ABB NBRA-669C ABB NTAC-01
ABB LDSTA-01 ABB NC4672A V1 HIEE205012R1 ABB NTAC-02
ABB LDSYN-101 ABB NCAN-02C 64527932 ABB NTAI02
ABB LDSYN-101 3BHE005555R0101 ABB NCHM-21 ABB NTAI04
ABB LF 1005-S/SP16 ABB NCHM-21C ABB NTAI05
ABB LIMELITE 2000 ABB NCNA-01 ABB NTAI06
ABB LT 370C GJR2336500R1 ABB NCSA-01 58920002 ABB NTAM01
ABB LT C391 AE01 HIEE401782R0001 ABB NDBU-95 ABB NTCF22
ABB LT8978bV1 ABB NDBU-95C ABB NTCL01
ABB LTC391AE01 ABB NDCO-03 3BSE017193R1 ABB NTCS04
ABB LTC743CE22 3BHE013299R0022 ABB NDCU-21C ABB NTDI01
ABB LXN 1604-6 3BHL000986P7000 ABB NDCU-51 64300261 ABB NTDI21-A
ABB LXN1604-6 ABB NDCU-51C ABB NTMF01
ABB LXN1604-6 (P/N:3BHL000986P7000) ABB NDIO-02 ABB NTMP01
ABB LXN1604-6 3BHL000986P7000 ABB NDPA-02 ABB NTRO02-A
ABB M2004HW ABB NDPC-02 ABB NU8976A
ABB MB510 3BSE002540R1 ABB NETA-01 64637193 ABB NU8976A99
ABB MC91 HESG440588R4 HESG112714/B ABB NFZ44E-23 1SBH136001R2344 ABB NXPP-02C
ABB MCM800 ABB NGDR-02 ABB OCAH 940181103
ABB MFS3N-230V ABB NGPS-12 ABB OCAHG 492838402
ABB MNTU-21C 3BSE017429R1 ABB NGPS-12C ABB P350/070
ABB MP9-20976K 3*174UF ABB NGPS13C 3AUA0000042489 ABB P4LS 1KHL015227R0001
ABB MPM810 ABB NIMP01 ABB PBSE1095 DSQC661 3HAC026253-001
ABB MPRC086318-501 ABB NINT-64 ABB PBSE5117
ABB MPRC086406-502 ABB NINT-68 ABB PC D232 3BHE022293R0101
ABB MPRC086444-003 ABB NINT-68 61426650 ABB PCC322BE
ABB MPRC086444-005 ABB NINT-72C ABB PCD230A
ABB MTA0020 HB010662R0120 ABB NIOC-02C ABB PCD230A 3BHE022291R0101
ABB MTS1-10B 1SFA611300R1006 ABB NLWC-05 ABB PCD231B
ABB MVR 0.44-10KA ABB NMBA-01 3ADT220066R0005 ABB PCD231B101
ABB NAIO-01 ABB NMBC-01 ABB PCD231B101 3BHE025541R0101
ABB NAIO-02 ABB NMTU-21C ABB PCD232A 3BHE022293R0101
ABB NAIO-03 ABB NPBA-12 64348221 ABB PCD232A101 3BHE022293R0101
ABB NAIO-03F ABB NPBU-42C ABB PCD235A101
ABB NAMC-03C ABB NPCT-01 ABB PCD235A101 3BHE032025R0101

 



    Customers reviews

    There are no reviews yet.

    Be the first to review “NDBU-95C ABB Protects the DC output from voltage effects”

    Your email address will not be published. Required fields are marked *

    Search for products

    Back to Top
    Product has been added to your cart