Table of Contents
Advertisement
Chapter 6: GP
Purpose
This chapter explains the differences between the SC9000
EP and the SC9000 GP. It does not cover all possible
contingencies, variations, and details that may arise during
installation, operation, and maintenance of this equipment.
Introduction
The Eaton SC9000 GP provides adjustable frequency control
and protection of medium voltage AC motors and equipment
rated at 4160 V. The design and performance of the GP meet
or exceed UL 347A, NEMA ICS6, and IEEE 519 standards.
The GP is offered in a front accessible, single structure with
modular enclosures, and provides simple, easy installation
with its back or either side against the wall. The GP allows
customers to use their existing main contactor or breaker to
keep cost at a minimum.
Customer supplied power
Input contactor and fuses
The VFD shall be supplied with 4160 V (±10%),
●
three-phase, 60 Hz (±5%) power with 50 kA maximum
fault current
Customer shall provide dedicated fused contactor with
●
isolation switch or power circuit breaker as feeder
Customer shall provide dedicated fused contactor with
●
isolation switch rated to protect the VFD from specified
short-circuit levels
Incoming line overload protection required to meet UL
●
standard to include voltage phase balance protection
Fuses shall be current limiting type 50 kA,
●
maximum 200E
If power circuit breaker is provided instead of fused input
●
contactor, fuses must be installed in the system between
the breaker and the drive or added to the drive
Table 10. GP power specifications
Voltage class
4160
Drive rating (A)
13
Drive output (kVA)
91
Nominal hp 4160 V
100
19
26
32
38
137
183
228
274
150
200
250
300
SC9000 EP medium voltage drives IB020001EN—February 2016 www.eaton.com
Control power
Three customer supplied control power circuits shall be
●
provided to supply 120 Vac. One is for drive control, one for
cooling the inverter enclosure, and one for cooling the
transformer enclosure
Each circuit shall be 15 A 120 Vac source. See schematic
●
for connection location and terminals
Feeder I/O requirements
Contactor/breaker closed input (MCR)
●
Contactor/breaker closed feedback (normally open)—
●
aux contact
Breaker open command if breaker supplied (for latched
●
contactors, breaker trip coil)
Control I/O requirements
Customer supplied 'Pre-Charge' contacts
●
When troubleshooting with 120 Vac applied, this pre-charge
circuit generates medium voltage when the 'Pre-Charge'
contacts are closed.
Specifications
Table 9. GP Specifications
Description
Power rating
Input voltage rating
Input frequency
Input short-circuit current withstand
Basic impulse level
Input power circuit protection
Output voltage
Number of inverter IGBTs
IGBT PIV rating
Number of rectifier devices (diodes)
Diode PIV rating
Cooling
1
With fused income line else 10 kA.
44
51
57
63
317
367
411
454
350
400
450
500
Chapter 6: GP
CAUTION
Value
100–1000 hp (75–750 kW)
4160 V
60 Hz, ±5%
50 kA rms sym
30 kV (option 60 kV)
Customer supplied
0–4160 V
12
6500 V
24
4000 V
Air cooling
76
89
101
114
548
641
728
821
600
700
800
900
1
124
893
1000
25
Advertisement
Table of Contents
