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Emerson Liebert FS 510 VDC User Manual

Iebert, W, 10 s

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L

IEBERT

FS

F

LYWHEEL

E

NERGY

S

TORAGE

S

YSTEM

- 190

K

W, 10 S

ECONDS

The Liebert FS is a technologically advanced DC energy storage system that utilizes a rotating mass as a

means for storage. Over 10 years and millions of dollars of development have resulted in a safe, efficient

product that can be used in place of or in parallel with batteries. Stored energy is available immediately

and released upon demand—up to 190kW is available for up to 10 seconds and can be used to:
• Ride through short power outages without the need to go to battery or generator
• Provide enough time to place generators on line during prolonged blackouts without the need for batteries
• Parallel with battery strings to provide extended backup time, battery life and reliability
The Liebert FS consists of several modules. The Flywheel Module contains technologically advanced

components. Supported by an active magnetic levitation system (Magnetic Levitation Module), the

carbon composite flywheel rotates within two containment vessels that make up a low-loss and extremely

safe operating environment. The Power Conversion Module is a bi-directional high-frequency

converter that provides a regulated output to the DC bus during discharge and becomes a source for a

variable frequency/voltage to drive (spin) the flywheel during recharge. The Power Conversion Module

Controller monitors and keeps all components within safe operating limits. FS units may be paralleled

for additional power or time.
A circuit breaker for disconnecting means (manually or automatic) is standard in the Liebert FS. Also

standard is an LCD user interface that displays the system’s operating status. Soft keys on the user

interface provide control of the unit. Additional monitoring and control options are available.
With its quiet operation, relatively small dimensions and weight of 1300 lb. (590 kg),

the Liebert FS may be installed in any typical electrical equipment environment.

Installation is simple—power and control wiring are the same as those found in

Liebert Battery Cabinet installations.

General Specifications

INPUT

OUTPUT

Voltage

520VDC, Nominal (Recharge)

Voltage

510VDC, Nominal (Discharge)

Voltage Range

480 to 540VDC

Voltage Range 480 to 540VDC

ENVIRONMENTAL

STANDARDS

Operating

Temperature

-4°F to 122°F

(-20°C to 50°C)

• UL listed to the following Standards:

• UL 1248, Standard for Engine/Generator Assemblies
• UL 508, Standard for Industrial Control Equipment
• UL 1004, Standard for Electric Motors

• CSA C22.2 No. 14-95, Industrial Control Equipment
• Meets current global requirements for safe, high-performance

operation.

Non-Operating

Temperature

-4°F to 176°F

(-20°C to 80°C)

Relative Humidity

5-95% non-condensing

Operating Altitude Up to 9,842 ft. (3,000m)

Acoustical Noise

45 dBA in Ready Mode, measured

3.3 ft. (1m) from the unit

• Carbon Fiber Flywheel
• 5-Axis Active Magnetic

Levitation System

• Integrated, Low-Loss

Vacuum System

• Synchronous Reluctance

Motor-Generator

• Integrated Safety System
• 5-Year Parts Warranty