ABB FPBA-01 Uživatelský manuál stáhnout pdf (Strana 20)

20 ABB industrial drives ACS880 single drives | Catalog

du/dt filters

du/dt filtering suppresses inverter output voltage spikes

and rapid voltage changes that stress motor insulation.

Additionally, du/dt filtering reduces capacitive leakage

currents and high frequency emission of the motor cable as

well as high frequency losses and bearing currents in the

motor. The need for du/dt filtering depends on the motor

insulation. For information on the construction of the motor

insulation, consult the manufacturer.

If the motor does not fulfil the following requirements, the

lifetime of the motor might decrease. Insulated N-end

(nondriven end) bearings and / or common mode filters are

also required for motor bearing currents with motors bigger

than 100 kW. For more information please see the ACS880

hardware manuals.

How to select a filter according to the motor. Please see

below:

NOCH0016-60NOCH0016-62 NOCH0016-65 FOCH0610-70

Filter selection table for ACS880

Motor type Nominal AC supply voltage Requirements for

Motor insulation system

ABB du/dt and common mode filters,

insulated N-end motor bearings

< 100 kW and

frame size < IEC 315

100 kW ≤ P

< 350 kW or

IEC 315 ≤ frame size <

IEC 400

< 134 hp and

frame size < NEMA 500

134 hp ≤ P

< 469 hp or

NEMA 500 ≤ frame

size ≤ NEMA 580

ABB motors

Random-wound

M2__, M3__ and M4__

≤ 500 V

Standard

+ N

500 V < U

≤ 600 V

Standard + du/dt + du/dt + N

Reinforced

+ N

600 V < U

≤ 690 V

(cable length ≤ 150 m)

Reinforced + du/dt + du/dt + N

600 V < U

≤ 690 V

(cable length > 150 m)

Reinforced

+ N

Form-wound

HX__ and AM__

380 V < U

≤ 690 V

Standard n.a. + N + CMF

Old* form-wound

HX__ and modular

380 V < U

≤ 690 V

Check with the motor

manufacturer

+ du/dt with voltages over 500 V + N + CMF

Random-wound

HX__ and AM__**

0 V < U

≤ 500 V

Enmelled wire with

fiber glass taping

+ N + CMF

500 V < U

≤ 690 V

+ du/dt + N + CMF

HDP Consult the motor manufacturer.

* manufactured before 1.1.1998

** For motors manufactured before 1.1.1998, check for additional instructions with the motor manufacturer.

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