Appendix e - specifications, Specifications, Appendix – Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive - Air-Cooled (A Frame) User Manual

Page 407

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Appendix

E

7000 “A” Frame

7000A-RM001A-EN-P – January 2011

Specifications

Description

Specifications

Power Rating (Air Cooled)

200 to 1250 hp (150 to 933 kW)

Motor Type

Induction or Synchronous

Input Voltage Rating

2400V, 3300V, 4160V, 6600V

Input Voltage Tolerance

± 10% of Nominal

Voltage Sag -30%

Control Power Loss Ride-Through

5 Cycles (Std)

Input Protection

Surge Arrestors

Input Frequency

50/60 Hz, +/- 5%

Power Bus Short-circuit Current Withstand

5 Cycle

3300 V – 6000 V

25 kA RMS SYM

Basic Impulse Level

50 kV (0 – 1000 m)

Power Bus Design

Copper – Tin plated

Ground Bus

Copper – Tin plated 6 x 51 mm (¼ x 2 in.)

Customer Control Wire Way

Separate and Isolated

Input Power Circuit Protection

Vacuum Contactor with Fused Isolating Switch

(optional)

Input Impedance Device

Isolation Transformer or AC Line Reactor

Output Voltage

0 – 2300 V
0 – 3300 V
0 – 4000 V

0 – 6000 or 6300 V

Inverter Design

PWM

Inverter Switch

Symmetrical Gate Commutated Thyristor (SGCT)

Inverter Switch Failure Mode

Non-rupture, Non-arc

Inverter Switch Failure Rate (FIT)

100 per 1 Billion Hours Operation

Inverter Switch Cooling

Double Sided, Low Thermal Stress

Inverter Switching Frequency

420-540 Hz

Voltage

SGCTs (per phase)

Number of Inverter SGCTs

2400 V
3300 V
4160 V
6600 V

2
4
4
6

Voltage

PIV

SGCT PIV Rating
(Peak Inverse Voltage)

2400 V
3300 V
4160 V
6600 V

6500 V
6500 V
6500 V
6500 V

Rectifier Designs

AFE (Active Front End)

Rectifier Switch

SGCT

Rectifier Switch Failure Mode

Non-rupture, Non-arc

Rectifier Switch Failure Rate (FIT)

100 (SGCT) per 1 Billion Hours Operation

Rectifier Switch Cooling

Double Sided, Low Thermal Stress

Voltage Sag tolerance is reduced to -25% when control power is supplied from medium voltage via CPT.

Short-circuit fault rating based on input protection device (contactor or circuit breaker).

BIL rating based on altitudes < 1000 m (3,300 ft.) Refer to factory for derating on altitudes >1000 m).

Specifications

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