PRAGATI PROCESS CONTROLS

HIGH VOLTAGE TESTER 5KV/100MA

Silent Features:

• · Modes: Manual, Auto, Programmable
• · Types: AC and DC and Combination (AC+DC) Dielectric Strength/HI pot Testers are available
• · Specially Designed probes provided for user safety
• · Safety factors: Zero Interlock
• · Specialty Transformer Type: Epoxy cast HV Transformer up to 36KV for user safety
• · Accurate and Quick Cut off System: Promptly designed feedback control system to switch off the HV supply as soon as breakdown takes place.
• · Indigenously designed Digital Ammeter and Voltmeter, Programmable Timer
• Leakage Current Adjustable as an extra accessory
• · Range of leakage current for tripping threshold from 5.0 mA to 1000mA: Ideal for capacitive circuit breakdowns such as an insulation of inductive motor
• · Quick and Easy Selection of leakage current threshold value
• · Prominently featuring indication lamps and buzzers for indicating results of test

 

 

 

MCCBs consists of two "triggers" - a thermal trigger and a magnetic trigger. The characteristics of the MCCB determine the relationship between the two. To perform a functional test, both features must be independently tested. Thermal: A current is applied to the MCCB to simulate the effect of overloading the circuit.

Contact Resistance Tester / Ductor Testing

Introduction: Contact resistance is the resistance encountered at electrical connections due to surface conditions. High contact resistance can lead to poor connections, causing issues such as increased losses, reduced current-carrying capacity, and dangerous hot spots. Contact resistance testing measures the resistance of connections in devices like switches, breakers, relays, joints, and connectors to identify and address problems such as corrosion or poor connections.

Importance:

• High Current Applications: Essential for connections that carry large amounts of current, such as circuit breakers, busbars, and cable joints. High resistance can result in overheating and inefficiency.
• Safety and Reliability: Testing helps detect potential issues early, preventing future problems and ensuring safe, efficient operation of electrical systems.

Major Applications:

1. Circuit Breakers and Isolators: Ensures reliable operation and prevents overheating.
2. Shunts and Busbars: Validates efficient power distribution and accurate current measurement.
3. Cables and Joints: Detects issues in cable connections and joints to maintain performance.
4. Metallurgical Applications: Assesses the quality of metal contacts and connections in various processes.

Testing Process:

1. Setup: Connect the tester to the points of interest.
2. Measurement: Apply a known current and measure the voltage drop to calculate resistance.
3. Analysis: Compare results to acceptable values and perform maintenance as needed.

Advantages:

• Early Detection: Identifies potential issues before they cause failures.
• Efficiency: Ensures optimal performance and reduces power losses.
• Safety: Prevents dangerous hot spots and enhances system safety.

Contact Resistance Tester / Ductor Testing The contact resistance is the resistance to the current flow in electrical connections, due to surface conditions in the connection o contact surface, which may lead to poor or bad connection if it is too high, causing different problems in the circuit. Therefore, the contact resistance test measures the resistance of electrical connections in switching devices, breakers, relays, joints, connectors, etc, for finding bad or corroded contacts as a preventive method, or for diagnosis and problem solving.The contact resistance test is very important for contacts that carry large amounts of current (e.g. circuit breakers, busbars, cable

Pragati's three-phase heat run panel for a Switch Mode Power Supply (SMPS) is designed to test and validate the thermal performance of SMPS units under full load conditions.