FM Techie

What is Diesel Generator? A diesel generator is a type of electrical generator that uses a diesel engine to convert fuel into mechanical energy, which is then transformed into electrical energy using an alternator. Diesel generators are widely used as a backup power source in case of power outages or in locations where a reliable power grid is unavailable. Why is Efficiency Important for Diesel Generators? 1. Cost Effectiveness Diesel generators are often used in areas with unreliable electricity supply. Fuel costs can be significant, so a more efficient generator consumes less fuel, making it more economical in the long run. 2. Environmental Concerns Diesel generators emit pollutants such as nitrogen oxides, particulate matter, and sulfur dioxide. Higher efficiency reduces fuel consumption, leading to lower emissions and making the generator more environmentally friendly. 3. Reliability Diesel generators are critical in applications like hospitals and data centers, where downtime is u...

Top Energy Saving Tips for Diesel Generators Diesel generators are an essential source of power for many industries and businesses, but they can also be costly to operate. Fortunately, there are several energy saving tips that can help reduce fuel consumption and lower operating costs. Here are some of the top energy saving tips for diesel generators: 1. Regular Maintenance Proper maintenance of your diesel generator is essential to ensure its efficient operation. Regular servicing can help identify and fix any potential problems that could reduce fuel efficiency. It's essential to clean the air filters and change the oil and fuel filters regularly. 2. Use High Quality Fuel Using high quality fuel for your diesel generator can help to improve fuel efficiency. It's recommended to use a high grade diesel fuel that contains low sulfur and ash content. These types of fuels have a higher energy content and burn cleaner, resulting in better fuel economy. 3. Right Sizing Selecting the...

A diesel generator is a reliable source of power commonly used as a backup or primary power source in various applications. To ensure smooth and efficient operation, regular checks and maintenance are essential. Below is a comprehensive checklist to guide you through the diesel generator check procedure: 1. Check the Oil Level Inspect the engine oil level and ensure it is within the recommended range. If the oil level is low, add oil as per the manufacturer's specifications. 2. Check the Fuel Level Ensure that there is enough fuel in the tank for operation. If necessary, refuel following the manufacturer’s guidelines. 3. Inspect the Fuel Filters Check the fuel filters for dirt and clogging. Replace dirty or clogged filters to maintain efficiency and prevent malfunction. 4. Check the Air Filters Inspect the air filters and clean or replace them if necessary. Dirty air filters can lead to overheating and reduced generator performance. 5. Inspect the Battery Ensure that the battery is...

Standard Operating Procedure (SOP) for Diesel Generator Daily Check Purpose: To ensure that the diesel generator is in good condition and ready for use. Scope: This SOP applies to all personnel responsible for operating the diesel generator. Procedure: Check the fuel level: Check the fuel level of the diesel generator and ensure it is above the minimum level required for operation. Check the oil level: Check the oil level using the dipstick and ensure it is within the safe range. Check the coolant level: Check the coolant level in the radiator or expansion tank and ensure it is within the safe range. Inspect the air filter: Check the air filter for any signs of damage or blockages. Replace or clean the filter as necessary. Check the battery: Check the battery terminals for corrosion and clean them if necessary. Check the battery voltage using a voltmeter and ensure it is within the acceptable range. Inspect the belts: Check the condition and tension of the belts. Replace or adjust them...

When AC voltage is directly applied to the stator windings of a 3 phase induction motor, the motor draws a high starting current which may disturb the system voltage. The starting current can be 6 to 7 times the full load current of the motor. To reduce this starting current, different types of motor starters are used in industrial applications. TYPES OF STARTERS: DIRECT ONLINE STARTER (DOL): AC voltage is directly applied to the stator windings. No effort is made to reduce the starting current. DOL starters are generally used for motors up to 10 HP. Control Circuit: The control circuit of a DOL starter includes a contactor, overload relay, and push button switches. STAR DELTA STARTER: Initially, the stator windings are connected in star configuration. Once the motor reaches 2/3rd of its normal speed, the stator windings are switched to delta connection. This reduces the starting current to 1/3rd compared to a DOL starter. Types of Star Delta Starters: Manual Semi automatic Fully autom...

  Buchholtz Relay – A Quick Overview What is a Buchholtz Relay? The Buchholtz relay, also known as a gas relay or sudden pressure relay, is a protective device used in oil filled transformers. It is mounted in the pipeline between the conservator oil tank and the main transformer tank. This relay helps in detecting incipient faults and prevents severe damage by triggering alarms and circuit breaker mechanisms. Working Principle of Buchholtz Relay The relay functions using two distinct detection modes: 1. Slow Gas Accumulation Detection Over time, gas is generated due to insulating oil decomposition caused by slight overloading or minor faults. This gas accumulates at the top of the relay, pushing the oil level down. A float switch is triggered, activating an alarm signal, which may also indicate slow oil leaks. 2. Rapid Gas Accumulation Detection (Arc Faults) If an internal fault occurs, gas production increases rapidly, and oil flows quickly into the conservator. A vane switch, lo...

Current Transformers a. A current transformer is a step down instrument for measuring the high value current in L.T /H.T/ E.H.T lines b. It has one or two windings or a bus bar or a heavy line conductor surmounted by a core having large number of thin wires. c. In a C.T the number of turns is inversely proportional to the current and it is connected in series in the line d. C.T is used for metering, recording and relay circuits for different requirements. e .C.T must have its secondary always closed through relays/short circuited and no fuse should be used. However the fuses can be used in shunt circuits while in service. f. Never open a secondary circuit of a C.T which may have high potential due to high impedance and endanger to personnel operating. g. Polarity is important in connecting a C.T in the circuit h. In calibrating a C.T’s impedance burden the configuration of different coil connection in series or in parallel is to be kept in mind. For safety purposes one of the secondary...