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DC-DC CONVERTERS AND BATTERY CHARGERS

RDC industrial thyristor rectifiers up to 1000 A

RDC industrial thyristor rectifier-chargers deliver 24–220 V DC at a current of up to 1000 A. They are built in cabinets and installed where a powerful source of operational DC is needed together with charging of a stationary battery. Typical sites are substations and metallurgical and chemical plants.

Output voltage
24–220 V DC
Output current
up to 1000 A
Circuit
6- or 12-pulse thyristor bridge
Ripple
< 1% (peak-to-peak)

Technical specifications

Output voltage24–220 V DC
Output currentup to 1000 A
Circuit6- or 12-pulse thyristor bridge
Ripple< 1% (peak-to-peak)
Efficiency> 90%
Protection degreeIP30 (up to IP42 on request)

Specifications are taken from the manufacturer’s technical documentation. Updated .

Description

The power section is built on a 6- or 12-pulse thyristor bridge. The 12-pulse circuit reduces the harmonics that the rectifier returns to the supply network, so it is chosen for large currents. Output ripple is below 1% peak-to-peak, which is suitable for powering relay protection and breaker drives directly from the busbars. The controller has five automatic charging modes with voltage temperature compensation, so the battery is neither overcharged in summer nor undercharged in winter. Efficiency exceeds 90%. The standard cabinet has an IP30 protection degree, up to IP42 on request for dusty workshops.

How to choose

The cabinet is selected from the nominal battery voltage within 24–220 V DC and the sum of the load current and the battery charging current, with an upper limit of 1000 A. For currents of hundreds of amperes it is better to order a 12-pulse bridge. If up to 60 A is enough or IGBT technology with a touch panel is needed, pay attention to RCRFn. For modular N+1 redundancy with 2000 W modules there is the AUPUS system.

Request a price and lead time

RDC industrial thyristor rectifiers up to 1000 A. We reply within one business day.

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Or email office@usk.ua or call +38 (044) 339-50-20.

FAQ

What is the maximum current of the RDC rectifier?

Up to 1000 A at an output voltage in the range of 24–220 V DC.

Why is the 12-pulse RDC rectifier better than the 6-pulse one?

The 12-pulse bridge gives fewer harmonics in the supply network and lower ripple before the filter, so it is chosen for powerful cabinets.

What is the voltage ripple at the RDC output?

Below 1% peak-to-peak, which is sufficient to supply a DC load in parallel with the battery.

What is the protection degree of the RDC cabinet?

IP30 as standard, and on request the cabinet is made with a degree up to IP42.

How many charging modes does the RDC rectifier have?

Five automatic charging modes with voltage temperature compensation, and efficiency exceeds 90%.

REQUEST

Need a price, lead time or replacement?

Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.

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