Suvidhi Industries

Nashik Road, Nashik, Maharashtra

Microprocessor Based Non- Directional Over Current Relay, Single Pole, Numerical relay. Selectable, Range: 5% to 250%. Current Relay with IDMT/DMT. Selectable Curves: Five selectable curve (Normal Inverse 1 (C1), Normal Inverse 2, (C2) Very Inverse (C3), Extremely Inverse (C4), Long Time Inverse (C5)) and Define Time (C6). Instantaneous Over-Current Protection with adjustable timer. Breaker Failure detection. Inbuilt CB Trip Circuit Supervision function during pre closing and post closing of CB. On site CT Secondary selection 1A or 5A. Wide range Power supply input 18V to 250V AC/ DC.

Relay Should have following Features :

• 16 x 2 LCD Backlit display for Parameter and setting display.
• Online display of CB status and other digital and logical status.
• Continuous monitoring of module’s internal hardware and alarm generation in case of failure of any critical components.
• 4 Digital Output contacts for local alarm as Trip.
• 2 dedicated status input for Trip Circuit Monitoring.
• 5 nos of Fault data stored with keypad interface and time stamping. Housed in MS Enclosure with important terminals brought out. Make: Suvidhi

Being a reliable name, we are focused towards delivering exceptional quality range, along with this, we follow strict guidelines and conduct regular quality examinations to ensure quality. We are equipped with the upgraded machines and technology, thus, we are capable of making stern packaging of products. To keep the product safe from external factors, we make use of finest packaging material.

Protection Elements for Comprehensive Numerical Transmission Line Protection Relay;

Impedance Function :

• Single Phase Distance Protection
• Four Independent Groups
• Five Independent Zones of Protection
• Permissive Over reach Trip Transfer (Z1ext.)
• Independent Polygonal/Mho characteristics for Phase to Phase and Phase to Ground Faults
• Power swing Detection
• Load Encroachment Detection
• Settable Switch On to faults and Auto Recloser
• VT Fuse Fail
• Circuit Breaker failure(50BF)
• Disturbance Recorder
• 16 Red, Green LED for Indications
• Relay healthy indication (Green).

Relay Design Features :

• Minimum operating time of 1.5 Cycles (30msec).
• Large 20x4 LCD display for Parameter and setting display.
• In built Real Time Clock with non-volatile memory for time stamping.
• Display of various counters
• Disturbance Recorder - Up to 1sec of actual waveform of current & voltage along with logical and physical status are captured & saved in built-in memory with date time stamping, for analyzing fault condition & fault location.
• Online display of CB status and other digital and logical status.
• Continuous monitoring of module’s internal hardware and alarm generation in case of failure of any critical components.
• 10 Programmable Digital Output contacts.
• 8 Optically isolated digital status input for monitoring of status and avoid use of external relay logic.
• 2 dedicated status input for Trip Circuit Monitoring.
• 100 nos. of event memory, event such CB close, Trip, digital status change, relay pkp etc. All events are with date and time stamped with up to 1ms accuracy.
• 10 nos. of Fault data stored with keypad interface and time.
• Display of Voltage, current, frequency, Reactance, Resistance in terms of secondary value. Control Panel: Control Panel suitable for the testing of Numerical Distance protection relay,
• Mainly consist of Power Input 230V AC 50 Hz, Built in variable current source 0-20 Amp and Variable Voltage source: 0-250V AC, Time interval meter- stop/ start timer digital, Power ON/ OFF mains switch/ MCB, power ON indication, Control circuit for Current injection and voltage injection.
• Auxiliary power supply for relay 220 or 110 or 48 or 24 Volts AC or DC. Built in digital Ammeter and Voltmeter. With fault simulating switchs.

Supported by a well-organized network and dependable resources, we have developed as a reputed supplier of Induction Type Non Directional Overcurrent Relay. The company is deep rooted in Nashik(India) and has gained a distinguished position in the market.

Specifications :

• Single Pole. 5A or 1A. IDMT type.
• Setting Range: 50 to 200% in Steps. Relay should have Identical time/current characteristics on all taps. Self-powered, High torque, ensuring consistent timing even under adverse conditions. Very low overshoot. Simple construction, easily accessible.
• Comprehensive range of high-set unit ratings. Dustproof drawout case and tropicalised finish. Housed in MS Enclosure with important terminals brought out.

Due to the capacious and well-maintained storage unit, we keep a large stock in a safe place to ensure complete safety. This unit also helps us in maintaining high quality standards. We use quality-approved raw materials as inputs for the production of our finished goods. The selection procedure of the raw materials is conducted by our expert quality auditors. Our Over Voltage Relay has voltmeter voltage monitor for over voltage and under voltage protection.