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Numerical Over Current Relay with Communication JD 100

Numerical Over Current Relay with Communication JD 100

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Our company has managed to gain customer appreciation as one of the most important names in the trade of over-current digital relays to our customers.

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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 Current Relay with Communication JD 100

Current Rating ( Inches ) :: 1A / 5A ( Site Selectable)

Operating Value (Def Time) :: 100% To 115%

Phase OC (IDMT) :: 20 To 200% In Steps Of 5%

Phase OC (Def Time) :: 50 To 500% In Steps Of 5 %

Earth Fault (IDMT) :: 5 To 80% In Steps Of 1%

Earth Fault (Def Time) :: 5 To 100% In Steps Of 1%

SEF (Def Time) :: 2 To 80% In Steps Of 1%

TMS (Ph & E/F) :: 0.02 To 1.0 In Steps Of 0.01

Definite Time (Ph, E/F & SEF ) :: 0 To 25.0s In Steps Of 0.1s (0 - Instantaneous)

Phase Hi-Set :: 200 To 3200% In Steps Of 100%

Earth Fault Hi-Set :: 50 To 1000% In Steps Of 50%

Hi-Set Operating Time ( Ph & E/F ) :: 0 To 500ms In Steps Of 50ms (0 - Instantaneous)

RS232 Communication :: MODBUS Protocol 9-Pin D At Front End

RS485 Communication :: MODBUS Protocol Isolated Rs485 At Rear End

Additional Details

The relay measures the line current of each of the line CTs, and if the current exceeds the set threshold, the relay extends a trip signal after a runtime. The "run time" of the relay is determined by selecting "defined time" or one of the six "reverse time" characteristics. Input to ground-sensitive grounding protection can be derived in two ways:

1) Residual current derived from three-phase current transformers can be used as input. The output of the core balance current transformer (CBCT) having appropriate characteristics can be used as input.

2) The input to the high impedance restricted earth fault protection will be derived from the neutral CT output with an external stabilizing resistor.

The earth fault / sensitive earth fault / restricted ground fault functions can be enabled or disabled independently. Inhibition of any protection is not possible.

Features:

Programmable for a 1A / 5A relay

Programmable frequency of the programmable system (50 / 60Hz)

3 OC + 1 EF + 1 SEF / REF

Available in low and normal charge configurations

Choice of 6 IDMT curves and defined time

Travel test facility

History of the last 6 faults as well as parameters

Self-supervision installation

MODBUS open protocol on the RS-485 port

MODBUS protocol via the RS-232 port

Draw an installation with an integrated CT short circuit

Standard dimension - 144mm x 144mm

Application:

The relay provides phase and earth fault protection (2 stages) with communication function.

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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