Checking for Leakage to Frame, Compressor Failure

1.3. Checking for Leakage to Frame

For checking whether there is leakage between the live parts and the frame, the insulation resistance can be tested using an ohmmeter, megger or high-voltage testing device.

An ohmmeter can be used for a rough check.

When investigating the wires on the unit, a clamp from the ohmmeter is placed on the unit earth terminal.

Investigate the compressor for leakage to the frame by placing the clamp from the ohmmeter on the joint connection and on the compressor earth terminal. The ohmmeter will now show if there is any leakage to the frame.

Flammable Refrigerant

When checking compressors for flammable refrigerants using a megger or a high-voltage testing device, make sure that the compressor is completely emptied of refrigerant, as sparks may be formed during the check.

1.4. Compressor Failure

Check whether voltage is being supplied to the unit.

PTC starting device with LST.

Connect a voltmeter between terminals neutral and L on the starting device.

If no voltage can be measured, either the mains cable or the socket is defective.

Connect a voltmeter between terminals neutral and C on the starting device.

If no voltage can be measured, a defective thermostat or ther- mostat wiring is indicated.

Neutral terminal = N on starting device 1 03N001 1 + 1 03N0021

Neutral terminal = M on starting device 103N0012

Dismount the red and brown wires on the thermostat and short- circuit them. If the compressor runs now, the thermostat is defective. If the compressor does not run, a break in the thermostat wiring is indicated.

If there is voltage between terminals neutral and C on the starting device, a defect in the starting device, compressor or refrigerating system is indicated.

PTC starting device.

10.

375 specifications

Equator 375 is a state-of-the-art maritime vessel that has garnered significant attention in the shipping and logistics industry due to its innovative design and advanced technologies. This vessel is specifically engineered to meet the growing demands of global trade while minimizing environmental impact.

One of the standout features of the Equator 375 is its impressive cargo capacity. With a deadweight tonnage of 37,500 tons, this vessel can accommodate a wide variety of cargo types, including bulk goods, containers, and project cargo. Its versatile design makes it suitable for multiple shipping routes, enhancing operational efficiency and reducing transit times.

Equator 375 is equipped with cutting-edge propulsion technology. It utilizes a dual-fuel engine that can run on both heavy fuel oil and liquefied natural gas (LNG). This flexibility allows the vessel to operate more sustainably, significantly reducing greenhouse gas emissions and complying with international regulations. By adopting LNG as a fuel source, the Equator 375 contributes to a cleaner maritime environment, helping to meet stringent emission targets.

In terms of navigation, the vessel features an advanced integrated bridge system that enhances operational safety and efficiency. The system includes state-of-the-art radar, automatic identification systems (AIS), and electronic chart display systems (ECDIS). These technologies ensure that crew members have access to real-time data, improving situational awareness and decision-making during voyages.

Equator 375 also prioritizes crew comfort and safety. The living quarters are designed ergonomically, with modern amenities to provide a comfortable environment for the crew during long voyages. Safety equipment is installed throughout the vessel, including fire suppression systems and life-saving appliances, ensuring that crew members are protected in case of emergencies.

Moreover, the vessel is designed with an eco-friendly hull shape, reducing water resistance and optimizing fuel efficiency. This hydrodynamic design contributes to lower operating costs, making Equator 375 not only a technologically advanced vessel but also a cost-effective option for shipping companies.

In summary, the Equator 375 is a remarkable addition to the maritime fleet, featuring impressive cargo capacity, advanced propulsion technology, and a focus on crew comfort and safety. Its eco-friendly design and innovative navigation systems position it as a leader in sustainable maritime transportation, paving the way for the future of shipping.