NAUGRA EXPORT

Ambala Cantt, Ambala, Haryana

Under And Over Voltage Relay Setup.
Under And Over Voltage Relay Setup Manufacturer
As one of the trusted suppliers and manufacturers, we offer a durable and reliable quality range Under/Over Voltage Relay Setup as per the industrial standards. These relays help in current flowing within the electronics isolated circuit ensuring the protection from overload. We offer these relays in various grades and sizes as per the requirements of clients at reasonable prices. These relays are built-in digitally indicating the power supply.Features:
Current limiter and auto transfer are the continuous variables for the safety of phantom faultThrough M.C.B power on/off system is in built to control relay testingBuilt in Trip status indicator and power on indicatorTo perform the experiments the necessary patch chords and terminals are required for the relay.Built in time interval meter Stop/ Start timer (Digital)Digital AC ammeter and AC voltmeterUnder/Over Voltage Relay.

Thyristor Time Delay Relay.Thyristor Time Delay Relay

Power Electronic Training Boardhas been designed specifically to study the operation of SCR and TRIAC triggered by electronic time delay circuit. This facilitates to perform the experiment to students both the modes of operation-delayed turn on and auto turn off to control any type of load i.e. A.C. or D.C. Practical experience on this board carries great educative value for Science and Engineering Students.

Object:

• Study of delayed Turn-ON of D.C. load
• Study of auto Turn-OFF of D.C. load
• Study of delayed Turn-ON of TRIAC as line switch
• Study of auto Turn-OFF of TRIAC as line switch

Features:
The board consists of the following built in parts:

• 12V D.C. at 2 Amp, Power Supply internally connected
• UJT 2N 2646 used as timer
• Potentiometer for ramp control to adjust time delay
• Set of 3 Capacitors for time delay control
• Two SCRs connected in parallel coupled mode
• Commutation capacitor.
• Push button switch for starting
• TRIAC for A.C. line switch
• Lamp holder with 15 watt 230V lamp for A.C. load
• Adequate no. of other Electronic Components
• The unit is operative on 230V 10% at 50Hz A.C. Mains
• Adequate no. of patch cords stackable 4 mm spring loaded plug length metre
• Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections/observation of waveforms
• Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.
• Weight : 3 Kg. (Approx.)
• Dimension : W 340 x H 110 x D 210
• Other Apparatus Required
• Digital Stop Clock

Percentage Biased Differential Relay.
Percentage Biased Differential Relay ManufacturerThis Set up will consist of following facilities:
Percentage baised differential relay.Digital Ammeters for differential and through current.Built in time interval meter stop/start (DIgital).Phantom fault with continualy variable auto transformer and curreent limiterBuilt in power on Indicator trip status indicator.Terminal for all the relay and necessary patch chords required to perform experiments will be provided.