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Heavy Duty Electrical Test Instrumentation

 

High Voltage Test Systems : High Voltage AC & DC Testers: These instruments are used to test a wide range of products including bushings, bus bars, cables, connectors, circuit breakers, insulators, etc. The test applies a high voltage to unit under test (above insulating voltage level) and measuring the leakage current. This helps to determine the units ability to withstand over voltages including surges, lightning strikes. Tests can be conducted to as high as 160KV.

Transformer Test Equipment : Featuring a complete range of transformer test systems from the popular three phase transformer turns ratio test set to high voltage single and three phase power transformer for distribution and transmission.

Relay Test Equipment : Electrical installations/users need to test a wide range of relays from electromechanical, solid state, microprocessor based protective relays, small moulded case circuit breakers, motor overload relays and similar protective devices. This can be done effectively by tests like reach, maximum angle of torque, directional balance points and closing angles besides breaker contact simulation providing easy testing of reclosing type relays. PULSAR, having a modular plug in design, can be used to test ac/dc relays with higher sensitivity and accuracy and in steady state, dynamic or transient states. The operator can also use a PC to create user defined waveforms for special test applications.

Cable Fault Locators: Cable fault location requires power as well as low voltage cables to be tested from time to time as part of maintenance as well as commissioning. Using techniques like Time Domain Reflectometry (TDR), Digital Arc Reflection and Surge Pulse Reflection, these systems can be portable or mounted in a van to test underground residential distribution (URD) systems. Capable to deliver 1500 Joules at 16KV, one can isolate a fault between transformers or breakdown faults in cables, joints and terminations.

 Battery Test Equipment: Electrical Power generation plants, substations, telecom facilities, UPS systems, aircraft power supplies require their battery banks to be tested for sulfating, post seal corrosion, poor intra-cell and inter-cell connections. This information helps operator decide cell replacement criteria based on impedance trends. These BITE testers measure the impedance and DC voltage values for all lead acid and nickel cadmium cells of less than 2500 Ah capacity. These testers require no battery discharging.

Capacitance and Tan delta Test Sets: Capacitance and Tan delta are used to give the condition of insulation in circuit breakers and power transformers. Periodic readings on high voltage electrical equipment can be used for trending-would help to detect problems before insulation breakdown happens. The models feature interference suppression when testing in HV switchyards as well as direct readout of C, tan D, and watts dissipated.

Partial Discharge test systems: Partial discharge measurement has become the most popular means of assessing the degree of aging in motor and generator stator winding insulation. Systems consist of a PD detector, voltage source, detection coupler, calibration signal generator, coupler, with associated cables and cords. Systems meet all requirements of IEC270 rev. 2000.

Current Injection Test Sets: Primary current injection test sets are used for the complete testing of relay protection systems consisting of isolated HV conductor, current transformer, protection relay and circuit breaker. Primary current testing is usually done at time of commissioning or at the time of breakdown stoppage.

Secondary current testing involves testing of the relays, overload coils, circuit breakers while in service to ensure correct operation if a fault should occur and also to prevent possible damage to plant equipment and personnel.

Motor Test Systems: From the basic core loss testers (for testing a motors damaged core iron resulting in shorts between laminations or arcing) to complex motor test systems measuring temperature, vibration, wattage consumed etc. Predictive maintenance of rotating machines can be carried out to detect deterioration of insulation in LV and HV alternators, generators and motors. Under this program a user can identify power circuit problems that degrade motor health, overall motor power conditions, monitor load and estimates energy savings through motor performance.

Motor repair equipment :: With wire bending machines which allow the instant selection of the bend angle and the sequence of bends without the need to use any form of spanner. Up to 6 different bends can be made in sequences without resetting - this allows quite complex wire forms to be produced without the need to bend parts in batches, one angle at the time. Also available are a variety of hand tools for motor repairs.

Recloser Test Equipment

Circuit Breaker Test Equipment

Watthour Meter Test Equipment

Dielectric Test Equipment

 

 


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