About Us

We make sure that each product we manufacture of the highest quality with best the delivery time. A highly energetic team of professionals with strong sense and customer focus has been working to take the products to next level.



Relay

Facilities

Factory

Kovur, Chennai

20+

Employees

ISO

Certified

5000+

Relays Annually Produced

4000

Sq.ft Factory Space

30000+

Relays Supplied

10000+

Production Capacity

Global

Supplier

Electromechanical Relays

Master Trip Relay

Features
Electro-Mechanical Design
Very High Operating Accuracy
Design Flexibility for easy operating characteristics
Hand reset contacts with mechanical flag.
Simple and Reliable Construction
Compact Panel Mounting case.
Operating time < 10ms
Contact Combination : As per requirement.
Applications
Contact Combination : As per requirement.

Trip Circuit Supervision Relay

Micro Controller Based Economic Design
Very High Operating Accuracy
Design Flexibility for easy operating characteristics
Monitors Circuit Breaker 52a & 52b auxiliary switches in open and close position
>300ms Time Delay to avoid nuisance alarms during normal CB Operation
Simple and robust construction
Positive action without chatter
Choice of pre-closing and post-closing supervision
Post-closing or continuous supervision of the trip circuit of circuit breakers
Hand reset operating indicator provided
Type test : CPRI Bangalore

Auxiliary Relay

Very High Operating Accuracy
Design Flexibility for easy operating characteristics
Hand reset contacts with mechanical flag.
Simple and Reliable Construction
Compact Panel Mounting case.
Operating time < 10ms
Contact Combination : As per requirement
Applications
Control, Alarm, Indication and other Auxiliary duties in AC or DC systems. Contact Multiplication

DC/AC Supervision Relay

Micro controller Design
Simple and reliable construction
LED indication for Healthy & Trip
Heavy duty contacts
Flush panel mounting
Type test : CPRI Bangalore
Aux volts 18 – 250V AC/DC
Micro controller Design

DC/AC Under voltage Relay

Electrical Reset Relay

Simple and robust construction
Positive action without chatter
Wide Range (24 – 220 AC/DC )
Single and Two element also available
Type test : CPRI Bangalore

Static Relays

DC Under Voltage Relay

DC Over Voltage Relay

DC Battery Earth Fault Relay

Micro Controller Based Economic Design
Very High Operating Accuracy
Design Flexibility for easy operating characteristics
Both 1A & 5A CT Inputs in a relay
Both AC & DC auxiliary supply available. (18-250V AC/DC)
Communication Protocol 61850 for SCADA (RS485) and USB port for program loading.
Password Protected

AC Under Voltage Relay

AC Over Voltage Relay

Fuse Failure Relay

Micro Controller design
Very High Operating Accuracy
Detects 1, 2 and 3 phase fuse failure in <8ms>.
Universal Auxiliary Voltage (20-250V AC/DC) with Low burden.
Less burden on PT.
Separate LED indications for all Three Phases.
Compact Robust Construction.

Trip Circuit Supervision Relay

Micro Controller Based Economic Design
Very High Operating Accuracy
Design Flexibility for easy operating characteristics
Monitors Circuit Breaker 52a & 52b auxiliary switches in open and close position
>300ms Time Delay to avoid nuisance alarms during normal CB Operation.
Simple and robust construction

Restricted Earth Fault Relay

Micro controller Design
Sensitive high speed protection on internal faults.
Wide Range of Aux voltage (18 – 250V AC/DC)
Using with Transformer, reactor , generator ,Motor ,
1A/5A Current Transformer Selectable,
Single and triple pole relays respectively
Type test : CPRI Bangalore

Numerical Relays

Non-Directional Over Current Relay

Micro-Controller based numerical design
Very High Operating Accuracy
Design Flexibility for easy selection of operating characteristics
Both 1A & 5A CT Inputs in a relay.
Both AC & DC auxiliary supply available. (18-250V AC/DC)
RS232 serial port for program loading.
Password Protected
Applications
VN100R is suitable for all the applications where over-current and earth fault protection are required.
VN100R provide a comprehensive suite of automation features for easy and flexible adaptation under different operating conditions.

Directional Over Current Relay

Micro Controller Based Economic Design
Very High Operating Accuracy
Design Flexibility for easy selection of operating characteristics
Both 1A & 5A CT Inputs in a relay.
Both AC & DC auxiliary supply available. (18-250V AC/DC)
Communication Protocol 61850 for SCADA (RS485) and USB port for program loading.
Password Protected
Standards
IEC - 60255-151 O/C & E/F
IEC - 60255-127 U/V & O/V
Directional - 60255 - 12

Motor Protection Relay

Micro-Controller based numerical design
Very High Operating Accuracy
Design Flexibility for easy selection of operating characteristics
Both 1A & 5A CT Inputs in a relay.
Universal wide range power supply unit. (18-250V AC/DC)
Fault Indication via LED’s
Communication Protocol 61850 for SCADA (RS485) and RS232 serial port for Program loading.
Password Protected.
Standards
IEC - 60255-151
IEC - 60255-127
IEC - 60255-149
All Products (Electromechanical/Static/Numerical) are type tested in CPRI, Bangalore / ETDC, Chennai.
S.NO Type of test
1. TANGEDCO
2. TANTRANSCO
3. OPTCL
SI.NO Name Of the Customer & Details
1. Successfully completed TANGEDCO Chennai north Purchase order on time.
2. Successfully completed TANGEDCO Chennai south-(1) Purchase order on time.
3. Successfully completed static relays (DC U/V Relay, DC O/V Relay, Battery E/F & AC U/V Relay) to various location in tamilnadu for TANGEDCO & TANTRANSCO.
4. Successfully completed TANGEDCO Krishnagiri Purchase order on time.
5. Successfully completed TANGEDCO Thanjavur Purchase order on time.
6. Successfully completed TANGEDCO Udumalpet Purchase order on time.
7. Successfully completed TANGEDCO Tiruvarur Purchase order on time.
8. Successfully completed TANGEDCO Ponneri Purchase order on time.
9. Successfully completed TANGEDCO Ramanathapuram Purchase order on time
10. Successfully completed TANGEDCO Periyapalayam Purchase order on time

Our Team

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Company

Voltech Manufacturing Company Ltd (Relay Division)

Address

Voltech Technopark NO:132,133 & 134 , Sri Kumaran Nagar Kundrathur Main Road, Kovur ,
Chennai – 600128

Send Mail

[email protected]

VOLTECH Group is a reputed, experienced and professional Electrical Engineering Company with a proven background in the areas of Testing & Commissioning of medium and heavy-duty Electricals in the Power and Transmission Sector

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Address:
No. 2/429, Voltech Eco Tower, Mount Poonamallee Road,
Ayyappanthangal, Chennai
Phone: +91-44-43978000
Email: [email protected]
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