- ページ 5

カメラアクセサリー DISCOVER Tubular Gel OPzVのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。DISCOVER Tubular Gel OPzV 10 ページ。 Tubular opzv gel - 2v, 6v and 12v cells & blocks
DISCOVER Tubular Gel OPzV にも：取扱説明書 (11 ページ)

ページを印刷する

be split according to the capacity or age of the batteries

respectively.

•

Note: The type of lead-acid batteries may differ between

strings as long as the required charging regime and

voltage (VPC) per string is guaranteed.

2.4 Cells in Series Strings

•

Discover

Tubular Gel cells/blocks may be connected in series

to increase system voltage.

•

In the case of each series connected string, only use batteries

of the same voltage, capacity, design and age.

•

The resistance of the cables or connector bars in each string

must be the same, e.g. same cross-section, same length and

same conductor type (copper, aluminium.

•

Each string should be equipped with disconnect capabilities

(breakers) for maintenance and safety purposes.

2.5 Pre-installation Control

•

Check cells or blocks for evidence of leakage.

•

All cells or blocks with visible defects such as cracked jars

or containers, loose terminal posts, or other unrecoverable

problems shall be rejected.

•

Before installation, in cases where the battery container is

dirty, wash with soapy water only.

•

Carry out OCV (Open Circuit Voltage) measurements on each

individual cell or block and check their compliance against the

following variation and absolute voltage criteria:

The OCV must not deviate from average more than

±0.025V for 2V cells, ± 0.04V for 6V blocks and ± 0.06V for

12V blocks.

The OCV must not be lower than 2.05V for 2V cells, 6.15V

for 6V blocks and 12.4V for 12V blocks.

The OCV of a fully charged cell/block at 20°C/68°F is 2.11V

for 2V cells, 6.33V for 6V blocks and 12.66V for 12V blocks.

Per 10% Depth of Discharge (DoD) the voltage is reduced

by .015VPC (15mVPC). (e.g. OCV of 2.05V equals a 40%

discharged cell (2.11V – (4 x .015V) = 2.05V)).

2.6 Electrical Connections

•

Ensure that the cells are installed and connected in the correct

polarity.

•

Check that all contact surfaces are clean. If required, clean

poles/terminals with a brass brush/pad.

•

You may slightly lubricate terminal inserts and connections with

silicone grease. Petroleum-based lubricants are not recommended.

•

Tighten the terminal screws using a torque loading of 22 Nm

or 16 Ft-lbs. Electrical connections between cells/blocks or cells/

blocks on separate levels or racks should be made making sure to

minimize mechanical strain on the battery poles/terminals.

•

For systems where the total battery voltage is measured at the

controller, use oversized cables between the controller and the

battery to minimize the voltage drop.

•

Check the battery's total voltage. It should match the number of

cells/blocks connected in series. If the measurement is not as

expected, recheck the connections for proper polarity.

•

The installer of the battery is responsible for conformity to

local electrical standards. In certain jurisdictions batteries

with a nominal voltage > 75 V may require an EC conformity

declaration in acc. with the low voltage directive (73/23/EEC),

which confirms that the CE marking is applied to the battery.

The company installing the battery is responsible for the

declaration and applying the CE marking.

•

For future identification, apply individual cell/block numbers in

sequence starting from one end of the series string. Also apply

identification letters or numbers for the parallel strings.

•

Only connect the battery to the DC power supply after ensuring

that the polarity is correct, the charger is switched off, and the

load is disconnected.

#4 -13511 Crestwood Place, Richmond, BC, V6V 2E9, Canada

2.7 Instrumentation

•

2.8 Commissioning Charge

The initial charge is very important for the future battery operation

and the battery's service life. It is performed as a "full charge" as

listed in paragraph 3.2.1. Keep records in the battery's logbook.

3. Operations

STAND ALONE SYSTEMS

In "Stand-alone" systems, the renewable source (e.g. PV array)

is the only charging source available for the battery. In some

systems, an external source - like a diesel generator - can be

used but this is not within the basic design principle of a stand-

alone system. (e.g. the source is engaged only intermittently

and manually by the user in order to serve excessive loads or to

maintain the batteries.)

Two types of charger controllers can be used:

•

HYBRID SYSTEMS

In "Hybrid" systems, the renewable source size is most often

smaller than the application load. There is always an independent

source available - diesel or grid – to recharge the battery in every

cycle. The same independent source can also be engaged, either

automatically at regular intervals or manually when required to

maintain the battery with equalizing charges. Only Constant Voltage

controllers (usually with two voltage steps) shall be used.

+ 1.778.776.3288

[email protected]

For large installations consider using permanent instrumentation

for measurements and alarms. These include voltmeters,

ammeters, Ah counters, high and low voltage indicators, ground

fault detector(s) and temperature sensor(s) for the battery and the

ambient air.

For smaller installations, use portable test equipment. The

battery temperature sensors shall be fixed on the cell/block

side wall or negative pole/terminal.

The use of monitoring and recording systems is mandatory in

"Hybrid" systems.

On-Off PV controllers:

The controller interrupts the charging current from the PV array

(off state) when the battery voltage reaches the high regulation

point (e.g 2.45VPC) and re-connects it (on state) when the

voltage drops to the low regulation point (e.g. 2.35VPC).

Constant Voltage type (PWM method is also included here):

Once the battery voltage reaches the regulation point, the

controller limits the charging current to keep the voltage

constant at this level as long as there is enough power

available from the renewable source. Two sub types may be

defined here:

•

One voltage step controllers: There is only one voltage

regulation point.

•

Two voltage steps controllers: There are two voltage

regulation points. Initially the controller maintains an

elevated voltage to recharge the battery fast (absorption

stage) then, after a certain time or other criteria, it steps back

to a lower voltage to prevent unnecessary overcharging

(floating stage).

discoverbattery.com