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.  

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.

• 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

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.

Three phase differential protection (87) with harmonic restrain Three phase Instantaneous differential protection (87) Restricted earth protection (87G) on either Primary or Secondary (MMI selection) Three phase time and instantaneous over current (5051) protection (HV & LV side) Ground time (51 G) and instantaneous over current protection (5OG) (either HV or LV side) Current unbalance (46) (HV& LV side)

• 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

the siprotec 7ut612 differential protection relay is used for fast and selective fault clearing of short-circuits in transformers of all voltage levels and also in rotating electric machines like motors and generators, for short lines and busbars. The protection relay can be parameterized for use with three-phase and single-phase transformers.the specific application can be chosen by parameterization. In this way, an optimal adaption of the relay to the protected object can be achieved.in addition to the differential function, a backup overcurrent protection for 1 winding/star point is integrated into the relay. Optionally, a low or high-impedance restricted earth fault protection, a negative sequence protection, and a breaker failure protection can be used. With external temperature monitoring boxes (thermo-boxes) temperatures can be measured and monitored in the relay.therefore, complete thermal monitoring of a transformer is possible, e.g. Hot-spot calculation of the oil temperature. The relays provide easy-to-use local control and automation functions. The integrated programmable logic (cfc) allows the users to implement their own functions, e.g. For the automation of switchgear (interlocking). User-defined messages can be generated as well.the flexible communication interfaces are open for modem communication architectures with the control system. The protection relay can be parameterized for use with three-phase and single-phase transformers. In addition to this, a thermal replica is integrated for the supervision of the ohmic losses in the plant. function   function overview differential protection for two-winding transformers (3-/1-phase) differential protection for motors and generators differential protection for short lines differential protection for busbars up to 7 feeders (phase-segregated or with summation ct) protection functions differential protection with phase-segregated measurement sensitive measuring stage for low-fault currents fast tripping for high-fault currents restraint against inrush of the transformer phase/ground-overcurrent protection overload protection with or without temperature measurement negative-sequence protection breaker failure protection low-or high-impedance restricted earth fault (ref) control functions commands for control of c.b. And isolators control via keyboard, binary inputs, digsi 4 or scada system user-defined logic with cfc monitoring functions self-supervision of the relay trip circuit supervision oscillographic fault recording permanent differential and restraint current measurement, extensive scope of operational values communication interfaces pc front port for setting with digsi 4 system interface iec 61850 ethernet - iec 60870-5-103 protocol - profibus-fms - profibus-dp - modbus - dnp 3.0 service interface for digsi 4 (modem)/temperature monitoring (thermo-box) time synchronization via irig-b/dcf 77

• Feature: 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

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.

• 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.

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

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

Numerical 3 Pole Differential Transformer Protection Relay

Differential Protection Relay, Short Circuit Protection Relay

Differential Protection Relays, Process Recorders, industrial man coolers

Transformer Differential Protection Relay CSEZEN-T140

Numerical Biased Differential Protection Relay, Multi- contact Auxiliary Relay