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Solar Hybrid SLD Document

The document outlines a solar hybrid power system designed for Paras Glass Ware Private Limited, integrating solar power, grid power, and battery backup through a TMEIC UPS. The system prioritizes solar energy during normal conditions, switches to grid power when solar is low, and relies on battery backup during grid failures. Key components include a bidirectional energy meter and necessary utility agreements for power export.

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317 views5 pages

Solar Hybrid SLD Document

The document outlines a solar hybrid power system designed for Paras Glass Ware Private Limited, integrating solar power, grid power, and battery backup through a TMEIC UPS. The system prioritizes solar energy during normal conditions, switches to grid power when solar is low, and relies on battery backup during grid failures. Key components include a bidirectional energy meter and necessary utility agreements for power export.

Uploaded by

naveen2512
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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PARAS GLASS WARE PRIVATE

LIMITED VILLAGE-
DHOLPURA, AGRA ROAD FIROZABAD
UP 283203.

Single Line Diagram (SLD) – Solar Hybrid


System with TMEIC UPS
System Overview

This is a solar hybrid power system with UPS backup. The system
integrates three main sources of power:

1. Solar Power via PV Panels

2. Grid Power 500KVA/DELTA STAR T/F (3-phase, 415V)

3. Battery Backup through TMEIC UPS

The goal of the setup is to ensure continuous power supply to the load,
prioritizing solar energy and using the grid or battery as backup.

 .

🧠 Working Logic

1. Normal Condition (Daytime, Sunlight Available):

o PV plate supplies power and pv inverter generate AC power for


UPS if if energy is excess can be export through grid.

o Excess energy may be used to charge batteries.


o Grid is in standby mode.

2. Low Solar (Cloudy or Night):

o UPS uses grid to power the load and charge batteries if


needed.

3. Grid Failure + No Solar (e.g., Nighttime blackout):

o UPS switches to battery mode.

o Load is powered from stored energy.

4. All Sources Available:

o Solar is prioritized.

o Grid is used as backup or to charge batteries.

o UPS ensures clean power delivery.

Here’s how it works in this setup:

 The PV panel sends DC power to the solar inverter, which converts


it to AC.

 The AC output of the solar inverter is connected to both the grid


and the UPS system.
 If there is excess solar generation (i.e., load demand is met and
battery is full), then the surplus can flow to the 3P-415 Volt Grid.

Power Flow condition.

Source of
Condition Power Flow Path Remark
Power

Solar supplies load. Excess solar


Normal Daylight Solar PV
PV → Inverter → UPS → Load charges battery (if designed that
Operation available
way).

PV → Inverter → UPS → Load;


Solar Available + Grid Solar first, Priority is usually given to Solar
Grid → Transformer → UPS
Available Grid standby (Eco Mode or Hybrid Mode).
(only if needed)

Solar Not Available + Grid → Transformer (Y-Δ) → UPS ensures conditioned,


Grid power
Grid Available UPS → Load uninterrupted power to the load.

Load is supported by the UPS


Solar Not Available +
Battery (UPS) Battery → UPS → Load battery. Backup time depends on
Grid Failure
battery capacity.

Solar Available + Grid


Battery → Inverter → UPS → PV inverter stop ,and load will be
Failure ( PV INVERTER Battery
Load charged through inverter.
STOP)

Total Failure (Solar


Load will shut down unless
Down + Grid Down + No source -
generator backup is available.
Battery Depleted)

But a few things need to be in place for actual export:

1. Bidirectional energy meter: To measure both import and export


power.

2. Utility agreement and permission: Local utilities must allow solar


export and set up net metering or feed-in tariff.

END

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