
Guidelines for planning the electrical installation 69
Implementing thermal overload and short-circuit
protection
Protecting the drive and input power cable in short-circuits
Protect the drive with fuses and the input cable with fuses or a circuit breaker with current
restriction.
Equip the fuses with blown fuse indicators for stopping the drive.
Size the fuses or the circuit breaker according to local regulations for the input cable
protection. Select the fuses for the drive according to the instructions given in chapter
The fuses for the drive protection will restrict drive damage and prevent
damage to adjoining equipment in case of a short-circuit inside the drive.
Circuit breakers
The protective characteristics of circuit breakers depend on the type, construction and
settings of the breakers. There are also limitations pertaining to the short-circuit capacity of
the supply network. Your local ABB representative can help you in selecting the breaker
type when the supply network characteristics are known.
WARNING!
Due to the inherent operating principle and construction of circuit
breakers, independent of the manufacturer, hot ionized gases can escape from
the breaker enclosure in case of a short-circuit. To ensure safe use, pay special
attention to the installation and placement of the breakers. Obey the manufacturer’s
instructions.
Protecting the motor and motor cable in short-circuits
The drive protects the motor cable and motor in a short-circuit situation when the motor
cable is dimensioned according to the nominal current of the drive. No additional
protection devices are needed.
Protecting the drive and the input power and motor cables against
thermal overload
The drive protects itself and the motor cables against thermal overload when the cables
are dimensioned according to the nominal current of the drive. No additional thermal
protection devices are needed.
In 6-pulse connection with a common main circuit breaker, the drive protects the input
cables against thermal overload when the cables are dimensioned according to the
nominal current of the drive.
For 12-pulse connection and 6-pulse connection with individual circuit breakers, use gG
fuses with blown fuse indicators for the thermal protection of the input cables. Wire the
indicators to stop the drive in case of a blown fuse.
Содержание ACS880-07XT Series
Страница 1: ...ABB industrial drives Hardware manual ACS880 07XT drives 400 to 1200 kW ...
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Страница 20: ...20 Safety instructions ...
Страница 26: ...26 Introduction to the manual ...
Страница 47: ...Mechanical installation 47 Moving the crate with a forklift Free width for fork tines 750 mm 29 5 ...
Страница 54: ...54 Mechanical installation ...
Страница 89: ...Electrical installation 89 PE 11 8 4 9 11 ...
Страница 94: ...94 Electrical installation ...
Страница 110: ...110 Start up Test and validate the operation of Prevention of unexpected start with FSO xx option Q950 Action ...
Страница 112: ...112 Fault tracing ...
Страница 123: ...Maintenance 123 5 6 7 ...
Страница 124: ...124 Maintenance 8 10 9 ...
Страница 126: ...126 Maintenance 6 5 4 ...
Страница 127: ...Maintenance 127 9 8 7 ...
Страница 128: ...128 Maintenance 12 11 10 ...
Страница 149: ...Dimensions 149 Dimension drawing examples Frame 2 R11 R10 with brake chopper ...
Страница 150: ...150 Dimensions Frame 2 R11 R10 without brake chopper ...
Страница 153: ...Dimensions 153 Location of input terminals ACS880 07XT 12 pulse ...
Страница 154: ...154 Dimensions Location of output terminals ACS880 07XT R10 with du dt ...
Страница 155: ...Dimensions 155 Location of output terminals ACS880 07XT R10 without du dt ...
Страница 156: ...156 Dimensions Location of output terminals ACS880 07XT R11 with du dt ...
Страница 157: ...Dimensions 157 Location of output terminals ACS880 07XT R11 without du dt ...
Страница 158: ...158 Dimensions Location of PE terminals ACS880 07XT ...
Страница 159: ...Dimensions 159 Location of resistor terminals ACS880 07XT R10 ...
Страница 160: ...160 Dimensions Location of resistor terminals ACS880 07XT R11 ...
Страница 168: ...www abb com drives www abb com drivespartners 3ABD00043579 Rev C EN 2018 01 01 Contact us ...