Differential Protection Relay Dealers

VSET-PS-050 Control Panel is designed for study of Protection of Transformer against Differential Current due to the Fault and unbalance Load. Scope of Learning:- Study of NO Load Test on Three Phase Transformer. Study of Load Test on Three Phase Transformer. Study of OC & SC Test on Three Phase Transformer. Study of Polarity Test of Transformer. Study of Ratio Test of Transformer. Study of Percentage Differential Transformer Protection Relay. Study of Load Unbalance Protection. Study and Testing of L.L. Fault. Study and Testing of L.G. Fault. Study and Testing of L.L.G. Fault. Study and Testing of L.L.L Fault. Study and Testing of L.L.L.G Fault.

Keeping in-line with the globally accepted standards, the raw material used for production is of high-grade. Thus, we always keep a check on the final product to make sure that the same is defect free. We carry out the quality examinations only under the vigil supervision of the quality auditors.   Simulation panel for Differential protection of Transformer : Transformer : 1 KVA ,415 V /230V , Star-Delta , 50Hz., 3 Phase Meterings : Various Digital meters are provided as follows. Voltmeter 01 No. on I/P & O/P side with selector switch. II. Ammeter 01 No. each on I/P & O/P side for balance condition. Panel with Accessories : Necessary meters as mentioned above, various MCB`s , including lamps, contactors, relays, CT`s, on I/P & O/P side along with protection scheme components are mounted on a proper panel with necessary wiring. Numerical High Speed Differential Relay : (For Differential Protection) Technical Specifications : Aux. Supply : 230VAC. CT Inputs : Suitable for CT secondary 1.0 Amp or 5.0 Amp. Operating Current : 10% - 100% adjustable. In steps of 5% Bias : Bias setting adjustable by switch at : 10 - 50%. In steps of 5% 2nd Harmonics Restrain : 10% to 80 % settable High Set setting : 100% to 2000% in steps of 100% Thermal Ratings : 5 x Times of Rated current continuously. (N = Rated) 40 x Times of Rated current for 3 sec. Vector group selectable for HV and LV side. Operating time : Less then 30ms at 5 Times of rated Burden on CTs : Less than 0.2VA. Burden on Aux. Supply : Less than 10VA on any supply. Thermal Withstand Capacity : x40 times the normal current for 3sec. : x2 Continuous Contact Rating for Trip Contract : Make and carry for continuous – 5A Make and carry for 0.5 sec. – 30A Make and Carry for 3 sec . – 15A.  

Programmable Rated Current 1A & 5A for earth, HV & LV winding Measurement, Protection & Metering Draw-out enclosure have modular design with CT shorting Communication (Local & Remote) Disturbance Record

the siprotec 7ss52 numerical protection is a selective, reliable and fast protection for busbar faults and breaker failure in medium, high and extra-high voltage substations with various possible busbar configurations.the protection is suitable for all switchgear types with iron-core or linearized current transformers. The short tripping time is especially advantageous for applications with high fault levels or where fast fault clearance is required for power system stability.the modular hardware allows the protection to be optimally matched to the busbar configuration. The decentralized arrangement allows the cabling costs in the substation to be drastically reduced. The 7ss52 busbar protection caters for single, double or triple busbar systems with or without and quadruple busbar systems without transfer bus with up to: 48 bays, 16 bus couplers, and 24 sectionalizing disconnectors and 12 busbar sections.   busbar protection functions busbar differential protection selective zone tripping very short tripping time (

• Voltage: 50 V DC and 50 Amps DC

Raychem RPG manufactures high quality automatic and manual Transformer Rectifier Units (TRUs) for cathodic protection application to buried structures, storage tanks at storage terminals I refineries and cross country pipelines that are critical to the hydrocarbon business sector of any country. TRUs are rugged in construction, designed to withstand harsh conditions in which they operate. Over thousand units, automatic and manual, are in operation in India and overseas with proven performance and complete satisfaction of our customers. Regular training to customers ensures sharing of product knowledge and deriving maximum benefits. Range and Types of TR Units: AC operated Transformer Rectifier unit: Input Supply: Single phase or Three phase Output supply: upto 100 V DC and 1200 Amps DC. DC operated CPPSM unit Input Supply: up to 48V DC Output supply: up to 50 V DC and 50 Amps DC ACDC operated Rectifier unit Input supply: Single phase Three phase AC supply or upto 48 V DC supply Output supply: upto 50 V DC and 50 Amps DC

Differential Protection Relay Features :- Automatic synchronization with relay outputs for speed control Adjustable delta frequency and delta voltage Adjustable breaker make time Visual indication of bus voltage, generator voltage, closing signal, delta voltage, increase and decrease signals Automatic voltage matching Operating temperature range: -20°C to +70°C Vibration test up to 4g (5 - 100Hz) Certified by major classification societies Flame retardant enclosure DIN rail or screw mounting.

• Ambient Temperature: 0 to 50 Degree Celsius
• Phase: Three Phase
• Frequency: 50 Hz
• Voltage: 415 V

We offer Numerical Biased Differential Protection Relay. MIB 202 takes the current inputs from both the ends of two winding power transormer and auto transformer, it is working on current differential principle. It provides stability against magnetic inrush conditions. Loadthrough fault stability is achieved through bias setting provided in the relay. It operates only for internal faults. Application Two winding power transformers Auto transformers Biased differential protection for generators

• Specialities: Two differential current levels,2nd and 5th harmonic adjustable restraint levels etc.

Percentage Biased Transformer Differential Relay Automatic correction of CTs’ mismatch and Transformer Vector Group. Two differential current levels. 2nd and 5th harmonic adjustable restraint levels. Programmable percentage bias curve. Oscillographic recording. Modbus Communication Protocol. Maximum Demand & Inrush Recording

Transformer protection unit manual Transformer Rectifier Units (TRUs) for cathodic protection application to buried structures, storage tanks at storage terminals I refineries and cross country pipelines that are critical to the hydrocarbon business sector of any country. TRUs are rugged in construction, designed to withstand harsh conditions in which they operate.

• Color: Black or Customized
• Voltage (V): 110, 220, 380,500
• Size (mm): 27.5*21.5*35, 58*45*65

Differential Protection Relay measures the line current of each phase from each of the winding's of the transformer. The relay is used for protection of power transformer against hazardous internal faults. It provides stability against magnetic inrush conditions, Loadthrough fault stability is achieved through bias setting provided in the relay. It operates only for internal faults.

Transformer protection unit are used to prevent submerged (Soil or water) metallic structures from corrosion. All submerged Pipelines (Oil, water etc.), concrete structure of bridges buildings sea ports etc can be protected from corrosion by doing CP.

We deals in supplying of wide range of Transformer Protection Panel.

Numerical Biased Differential Protection Relay, Multi- contact Auxiliary Relay

8IDV-Differential Protection Relay, IRX-Overcurrent Multifunction Relay

Numerical 3 Pole Differential Transformer Protection Relay

Differential Protection Relay, Short Circuit Protection Relay