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BESS – 6.7 kW Module Photo & Drawing. Top. 735 mm. 360 mm. 1210 mm. 100 mm. Front. Right. 6.7 kW BESS Specification. Note: * by embedded charger. External charger can be used for quick charging. DC. BESS – 6.7 kW Module Block Diagram. LCD Display, Lamps, & Emergency SW.

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BESS – 6.7 kW Module Photo & Drawing

Top

735 mm

360 mm

1210 mm

100 mm

Front

Right


6.7 kW BESS Specification

Note: * by embedded charger. External charger can be used for quick charging

DC


BESS – 6.7 kW Module Block Diagram

LCD Display, Lamps, & Emergency SW

Lithium Polymer

Battery

Cell Module Stack

Current Sensor to BMS

RS 485

MC 4

BMS Board

Power Board

MC 3

RS 485

MC 2

DC/AC

INVERTER

Current Sensor to Inverter

MC 5

Bypass

Frame Ground

MC 1

MCCB

H

E

A

T

E

R

AC mains from grid

AC output

to load

From PV Power Conditioner


,

,

BESS 3.1 KW/6.7 kW – Power Flow & LCD Display

Current Sensor

Load

AC Grid

MC

BMS

Inverter

BMS

MC

DC/AC

INVERTER

BATTERY

OP Mode

02:20 July 02 2010

Current Time

A

3.0 kW

0.3 kW

AC Main

Load

AC Main Output

Fan

Heater

2.7 kW

2.5 kWh

PV

BESS SOC

Inverter Output

SOH

80%

SOL

80%


Ruby Active BMS Features

  • RTC Scheduler

    • Operation by programmed schedule

    • Time stamp by event

  • Computation & Measurement

    • Charge/discharge coulomb counting

    • Cell internal resistance measurement

    • SOH (State of Health), SOC (State of Charge)

  • Cell module control

    • Charge control by CC/CV method

    • Cell module shutdown – Zero standby current

    • Cell history by cell module

  • Communication

    • Ethernet/TCP/IP – Remote analysis, program down load

    • External charger control via RS485

    • Inverter control via RS485

    • Inter BMS communication via RS485

  • Display & Control

    • LED display & control/data input terminal

    • 3.5 inch TFT LCD / touch screen

  • BESS management

    • UPS system mode control by RTC – Mode A, B, C, power failure mode

    • Ignition key / power switch

    • Emergency

    • Shutdown mode

    • GPIO MC – 10 unit


Comparison Test Report – Ruby BMS vs. Passive BMS

Cell Balancing by Active BMS, Ruby™ (Korea)

Cell Balancing by Passive BMS, R company (UK)

Test with deliberately unbalanced cells

Cell Balancing by Passive BMS, N company (Korea)


Comparison BESS Performance – Ruby BMS vs. Passive BMS

Bank 1 with BMS 1

Bank 2 with BMS 2

Bank n with BMS n

BESS Total

Cell voltage level by Active BMS

4.20

All cells are balanced with Active BMS

4.10

Non Usable Capacity with Passive BMS

4.00

Energy Waste by Passive BMS

3.90

All cells are not balanced with Passive BMS

3.80

Cell voltage level by passive BMS

3.70

After Bank Connection

1 2 3 4 5 --- -- L

1 2 3 4 5 ---- M

1 2 3 4 5 ---- N

1 2 3 4 5 ---- K

Cell balancing by Active BMS

Cell balancing by passive BMS


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