Numerical Over Flux Relay JNF 020

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We have expertise in providing our customers with a diverse range of durable, performance-oriented, projectile Numerical Over Flux Relay JNF 020.

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Minimum Order Quantity:: Not mentioned

Payment Terms:: Cash,Cheque,Demand Draft

JVS Electronics Pvt Ltd

India

Business Type:: Manufacturer, Distributor / Wholesaler

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Aaryaa M S
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Product manufactured In:: India

Type :: Numerical Over Flux Relay JNF 020

Voltage Input :: 2 Times Rated Continuous

Loaded Contact :: 10,000 Operations Minimum

Unloaded Contact :: 100,000 Operations Minimum

AC Voltage Input :: Less Than 0.1VA

Aux. Supply :: Less Than 4W (Non Operated)

Alarm Setting :: 1.01- 1.30 V/Hz. In Steps Of 0.01

Alarm Time Delay :: 00.5 - 50.0 Secs. In Steps Of 0.1

I/T Pickup :: 1.02 -1.50 V/Hz. In Steps Of 0.01

TMS :: 001 - 100 In Steps Of 1

Rated Voltage :: 105 - 125 V. In Steps Of 1V

Weight :: 5000 gms. (Approx)

Case Size :: 152X296 Sq Mm, Depth 250mm

Installation :: Flush Mounting

Panel Cutout :: 146 X 264 Mm

Accuracy Test :: IEC 60255-3

Insulation Test :: IEC 60255-5

Voltage,Operating Time :: Plus-Minus 5%

Frequency :: Plus-Minus 0.02Hz

Phase Angle :: Plus-Minus 2%

Frequency Rating :: 50Hz

Rated Voltage :: 110V AC, 63.5V AC

Additional Details

The over-flux of a transformer occurs when its flux density exceeds the nominal density, it is caused when its V / F ratio is higher than that which the manufacturer considers safe. This is of course the case when it is connected directly to the generator, without the benefit of an intermediate circuit breaker and the excitation system of the generator is excited while accelerating to the operating speed JNF 020 monitors the voltage / frequency ratio, when it exceeds the set fault value and the output relay operates after a defined alarm delay.

Features:

Programmable V / F ratio

History of the last 5 details of closing the relay

Application:

The JNF 020 overcurrent relay is used in power systems to protect transformers and generators against insulation failure and damage to the core due to overheating under extended excessive flow conditions. It protects the equipment against abnormal V / F ratios due to system disruption that may occur during start up, charging and shutdown conditions.

With almost more than a decade of experience and rich technological expertise, we are able to offer a precision designed range of Electrical Protection Instruments.

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