S R Electronics, DelhiS R Electronics, Delhi

Inverter and UPS
We are offering a wide range of durable electronic equipment, which are manufactured using qualitative raw materials and designed & developed by our expert team. Our range can also be customized as per the specifications and requirements of our clients. Further, our products are offered at market leading price. Our range include:


Digital Inverter
Digital Inverter

We offer digital inverter, which are designed to provide stable A.C. during power failure. These are fully automatic and completely noiseless. The models available with us are 250 VA to 5 KVA.

The salient features of our range include:

• Easy installation on A.C. mains after separating power line, there by automatically disconnecting the unwanted during power failure.
• Auto Start/Stop- Our inverter starts on automatically during power failure and goes off when the mains is restored.
• Auto Search Facility- Our product shuts off, if the load is greater then it's rated output and keeps searching for its correctness after every 5 secs. As soon as the load is decreased, it gets on.
• Short Circuit Protection- This inverter automatically shut off during short circuit.
• Mosfet Technology is used to achieve longer backup time from same size of batteries.
• Stable Output , which gives fixed voltage and frequency even when the load is less, on battery mode. This protects the valuable appliances from burnout due to high voltage.
• Controlled Battery Charging Circuits
With circuit built in, the batteries are protected against overcharge and deep discharged it charges the batteries at constant optimum rate over input voltage range from 160 V to 300 V it thus increase the battery life.
• Status Display
The front panel of the inverter has various indication to display the unit status.

Input & Output 230 V, Single phase, 50Hz
Output Voltage 230 V ± 8%
Wave Shape Quasi Square Wave
Load Power Factor0.7 to 1.0 Lagging
Battery Charger typeConstant Current Charging
Battery Charging Current Appx. 10% of Battery Capacity
Efficiency Mains/ Inverter 92% / 85%

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Sine Wave Inverter

Our range of sine wave inverters are made using qualitative raw materials, which ensures the durability and reliability of our range. These are used in various components to protect them from short circuit. Further, our products can be customized in specifications and requirements as per the clients requirement.

For Technical Specifications of Sine Wave Inverter click on ENLARGE VIEW

Sine Wave Inverter
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Solar Inverter
Solar Inverter

We offer a range of solar inverters, which work like a regular inverter and have automatic change over from mains to battery and from battery to mains at the time of power cut. The inverter is made by using superior quality equipments and raw materials that provides a longer life. Some of the parts of our inverters include : • Inverter circuitry • Two level battery charging from mains • Solar charge controllers Salient Features • Pure Sine Wave Output with no Total Harmonic Distortion (TDH) • High End Micro controller based design. • High Efficiency & High reliability • Auto-reset resulting in efficient overload and short circuit protection. • Battery pole reversal protection & battery deep discharge protection. • High surge capability (upto 300%) for starting heavy load. • Noiseless in operation • User-friendly display Applications Our solar inverter finds application in the following areas. • Fans, TV and Tube lights • Computer , printer and Fax Machines • IT/ITES • Deep Freezer, Air Conditioners, Microwave • Industrial Drive & Motors • Telecom

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Wall Mounted A.V.R. Inverter

The wide range of A.V.R wall mounted type inverter we offer to customers can be fitted on wall and thus covers less space. These inverters are made of high grade plastic that provides them strength and durability. We also check the quality of the product on various criteria before sending it to the customer. The range of inverter is offered at the most reasonable prices to client.

Special Features

• Input range 90–270, 140-280 & 160–260 Output 220v ± 9%.
• Load capacities range from 4KVA/5KVA.
• Completely Copper bound Buck/boost transformer.
• Special Grade Silicon Steel Lamination for transformer.
• Electromagnetic relays for reliable performances.
• Elegant Power coated Housing.
• Attractive front panel.
• Wall Mounting Model also available for Air conditioning.
• Micro Controlled kit for controlling the Voltage.

Wall Mounted A.V.R. Inverter
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Uninterrupted Power System
Uninterrupted Power System

Our range of interactive uninterrupted power system is incorporated with AVR and built in SMF battery with low battery cutoff facility. This is a compact portable device, which gives complete power protection and at an affordable price. Further, our range comprises of:

• Three battery saving features like buck and boost voltage correction, automatic overload protection and deep discharge protection with audio, visual alarms and indications.
• Short circuit protection
• Inbuilt constant current constant voltage charger for fast and safe charging of batteries and generates low heat so that the internal components and battery remain cool:

AC Mode
Input Voltage 220V A.C. (Nominal)
Input Voltage Variation 145V to 280V A.C.
Output Voltage 220V± 6%
Battery Mode
Input Voltage 12V D.C.(Nominal) for 500VA & 625 VA 24V D.C. (Nominal) for 625VA 24 V D.C. (Nominal) for 1 KVA & 1.5 KVA
Output Voltage 230 V A.C. (Nominal)
Output Regulation ± 5%
Frequency 50 Hz (Nominal)
Load Power Factor0.8 lag to unity
Output Wave FormQuasi Sine Wave
Unit Protection
Inverter Overload Electronic Overload Shutdown
Low Battery Automatic low battery shut down
Input Overload A.C. Fuse
EfficiencyAppx. 85%
Operating Temperature 0° to 50° C

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Home UPS

We offer home UPS, which are widely used to save power and protect the home electrical appliances from short circuit. These are offered at competitive price and can be customized in specifications and as per the requirements of our clients.

HOME UPS-800 VA/ 12 V
OPTIONABC
COMPUTER1-1
TELEVISION-1-
TUBE LIGHTS-22
FANS3-2
ROOM COOLER-1-
CFL6--


For Technical Specifications of Home UPS click on ENLARGE VIEW

Home UPS
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Online UPS
Online UPS

We offer online UPS to our customers, which works either on rectified mains voltage if the main power is available or on battery in the case of mains failure. The UPS we offer is a true non break power supply. The product prevents the equipment connected to it from fluctuation, brownouts, spikes, frequency drifts, noise and many more things. The products are tested on various aspects before they are finally send at the client end. For Technical Specifications of On-line UPS click on ENLARGE VIEW

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Digital Voltage Stabilizer

We offer digital voltage stabilizer, which are made of qualitative raw materials to ensure reliability and long lasting operation. These can give reliable operation under adverse climatic condition.

The components incorporated in our product are:

• I.C. controlled digital circuit
• Voltmeter with input and output selector switch to monitor input & output voltage

The specifications of our products are:

Output Voltage220±10% single phase 50 Hz
Output Regulation±10%
Correction Rate± 40V per second
VoltmeterWith selector switch to read input and output voltage
Output Voltage CutoutStabilizer will cutout when output is below 200 V ora bove 250 V
Reset Standard-auto optional-manual
Time Delay The stabilizer will start after time delay of 10-15sec. So as to permit input voltage to be fully stabilized before outputs made available.
Input Frequency range47 Hz to 53 Hz
Output FrequencySame as input
Output Wave FormTrue reproduction of I/P No distortion introduced by stabilizer
Operating TemperatureUp to 50°C
Efficiency Above 95%
Nature of cooling Natural air cooled

Digital Voltage Stabilizer
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Servo Stablizer
Servo Stablizer

We offer superior quality, high performing servo stabilizers to customers, which have a high speed to meet several kinds of voltage control problems. These are efficient power controllers with no wave form distortion and are available in wide frequency range with low internal impedance. The best feature of our servo stabilizers is that they are insensitive to the magnitude and power factor of the load and this on the other hand do not effect the system power factor. The product is offered to clients at the most reasonable prices and timely deliveries.

Special Features of servo voltage stabilizers
1) Fully automatic solid-state glass epoxy plug in control card.
2) Very low internal impedance.
3) High reliability servomotor.
4) Wide frequency range from 45/55 Hz.
5) No effect by any transient over voltage surges.
6) Voltage limit indicators.
7) Output Voltage adjustable.
8) Input/Output voltage monitoring.
9) Accuracy ±0.5% to ±1% from no load to full load.
10)Fast correction speed (20/40 volts per sec.)


Efficiency : Batter Than 95% (Single Phase), Batter Than 95% (Three Phase)

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Constant Voltage Transformer

Our range of constant voltage transformers are made, using advanced technology for voltage regulation, electrical isolation and reliability. These can protect computer, micro processor based systems and industrial applications.

The features of our range include:

• Fully inbuilt electrical load to line isolation
• 100 times noise attenuation capacity
• 33% to 60% higher voltage fluctuation handling capacity
• Precise ± 1% voltage regulation
• No electronic or electro-mechanical components
• Continuous high speed and step less voltage regulation
• Fully protected against overload, over voltage and short circuits
• Full protection to equipments brownouts, spikes and surges
• Highest reliability expectations.

Electricals
Voltage170 to 280 Volts (Wide range also available)
Frequency50 Hz
PhaseSingle
Output
Voltage220/230/240 Volts (Adjustable)
Regulation± 1%
Total Harmonic Distortion<6%
Voltage Correction Speed100 V/Sec
Response Time20-25 m Sec
ProtectionsOver voltage, over loading short circuit.
Environmental
Operating Temperature range-20° C to 50° C
InsulationClass B
Temperature riseAs per IS 2026 Part-II
Operating Humidity95%


Transformer Technical Specification of Mechanical click on Enlarge View

Constant Voltage Transformer
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