Siemens DC Drive 6RA70 3-ph. AC 830 V

SIMOREG DC-MASTER 6RA70
SIMOREG DC-MASTER chassis converters 6RA70
for single-quadrant operation B6C
3-ph. 830 V AC
  • rated input current: 900 A to 1900 A
  • rated DC voltage: 1000 V
  • rated output: 900 kW to 1900 kW

 6RA70 3-ph. AC 830 VTechnical specifications

Type

6RA70..-6LS22

6RA70..-4LS22

88

93

95

Rated supply voltage armature 1)

V

3-ph. AC 830 (+10 % / -20 %)

Rated input current armature 2)

A

746

1244

1575

Rated supply voltage electronics supply

V

2 AC 380
(-25 %) to 460 (+15 %); In = 1 A or
1 AC 190 (-25 %) to 230 (+15 %);
In = 2 A
(-35 % for 1 min)

Rated suply voltage fan

V

3-ph. AC 400 (±10 %) 50 Hz
3-ph. AC 460 (±10 %) 60 Hz

3-ph. AC 400 (±10 %) 50 Hz
3-ph. AC 460 (±10 %) 60 Hz

50 Hz

60 Hz

50 Hz

60 Hz

Nominal fan current

A

1.0 8)

1.25 8)

1.0 8)

1.25 8)

Air flow rate

m3/h

1300

1300

2400

2400

Fan noise level

dBA

83

87

83

87

Rated supply voltage field 1)

V

2 AC 460 (+15 % / -20 %)

Rated frequency

Hz

45 to 65 9)

Rated DC voltage 1)

V

830

Rated DC current

A

900

1500

1900

Overload capability

Max. 1.8 times rated DC current

Rated output

kW

900

1500

1900

Power loss at rated DC current (approx.)

W

4638

6778

8700

Rated DC voltage
field 1)

V

Max. 375

Rated DC current field

A

30

40

Operational ambient temperature

°C

0 to 40 at I rated 3) separately cooled

Storage and transport temperature

°C

-25 to +70

Installation altitude above sea level

≤ 1000 m at rated DC current 4)

Dimensions
(H x W x D)

mm

780 x 410 x 362

880 x 450 x 500

Weight (approx.)

kg

80

125

1) The armature/field supply voltage can be less thanthe rated supply voltage armature/field (set with Parameter P078; for converters with 400 V rated voltage, input voltages of up to 85 V are permissible). The output voltage is reduced accordingly. The specified output DC voltage can be guaranteed up to undervoltages 5 % below the supply voltage (rated supply voltage armature/field).

2) Values apply to output rated DC current.

3) Load factor K 1 (DC current) as a function of the coolant temperature (see P077 Operating Instructions).
K1 > 1 only permissible where K1 * K2 ≤ 1st overall reduction factor K = K1 * K2 (K2 see footnote 4).

Ambient or coolant temperature

Load factor K1

In devices with self-cooling

In devices with enhanced cooling

≤ +30 °C

1.18

1.10

+35  °C

1.12

1.05

+40 °C

1.06

1.00

+45 °C

1.00

0.95

+50 °C

0.94

0.90 a)

+55 °C

0.88

+60 °C

0.82 b)

a) In spite of derating, converters of ≥ 400 A with enhanced cooling may be operated at an ambient or coolant temperature of 50 ºC only if the rated supply voltage of the converter fan is safely within the limited tolerance range of 400 V +10 % -15 %.

b) Not permissible when T400 or OP1S are used.

4) Load values K2 as a function of the installation altitude (see P077 Operating Instructions, );
Overall reduction factor K = K1 * K2 (for K1 see Footnote 3).

Installation altitude m

1000

2000

3000

4000

5000

Reduction
factor K2

1.0

0.835

0.74

0.71

0.67

The supply voltages for all electric circuits are possible for site altitudes up to 5000 m with basic insulation,
With the exception of converters for rated supply voltages:

Installation altitude

Rated supply voltage

830 V

950 V

Up to 4000 m

max. 830 V

950 V

Up to 4500 m

max. 795 V

933 V

Up to 5000 m

max. 727 V

881 V

8) For UL systems, a Siemens motor protection circuit breaker Type 3RV1011-0KA1 or 3RV1011-1AA1, adjusted to 1.25 A for the fan motor Type RH28M-2DK.3F.1R must be installed in 6RA7090, 6RA7091, 6RA7093 and 6RA7095 converters with a rated voltage of 400 V or 575 V.

9) Operation in the extended frequency range of 23 Hz to 110 Hz is possible on request.