Application: Test the actual output power and load capacity of generators and UPS power supplies

1. The importance of backup AC power

The backup AC power supply is the power guarantee for many industries. It guarantees the continuity of power supply and the safety of the power supply system. The backup AC power supply always plays an important role in safety protection.

A good backup power system is an important force in dealing with disasters. Natural disasters such as typhoons and earthquakes often damage power supply lines, and it often takes time to rebuild these lines. In the face of disasters, the interruption of power means the interruption of information, the interruption of light, and even the interruption of life. At this time, backup power sources such as generator oil generators, UPS (uninterruptible power supplies), and batteries must support the power beam of the emergency system. Maintenance and management departments at all levels must pay attention to UPS and power generation from the perspective of ensuring operation quality, production safety and property safety. The maintenance work of the backup power supply for the machine...

2. Maintenance status and common problems of various backup AC power supplies

1. Unable to detect the actual output power and load capacity of the generator: There is no means to test the output power and load capacity of the generator when the generator is newly installed and put into use. The output power and load capacity of the generator after maintenance or noise modification.

2. Unable to detect AC uninterruptible power supply-UPS and DC/AC AC inverter power equipment electrical performance indicators, unable to detect the actual output power and load capacity of the UPS: the newly installed UPS/EPS has no means to load before it is put into use There is also a lack of effective testing methods (no maintenance tools) for maintenance testing during regular daily maintenance.

3. Unable to grasp the capacity and life of the large-capacity valve-controlled battery in UPS/EPS operation. The battery pack composed of more than 200 2V batteries is often due to the large number of battery cells and large discharge current, and no suitable means for discharge test can be found. .

4. Unable to detect the electrical performance indicators of switching power supply and DC conversion equipment: Newly installed switching power supply and DC/DC conversion power supply equipment project completion acceptance and routine operation and maintenance routine inspections, the user department cannot detect due to lack of DC power equipment parameter testing equipment The electrical performance index of the equipment not only affects the acceptance of the project, but also brings certain difficulties to the operation and maintenance.

Three, the main detection function of SLT-220/380 AC false load

The SLT-220/380 AC dummy load can accurately test the actual output power and load capacity of UPS equipment and various generator sets. The analysis software provided with the machine can analyze various data changes during the entire test process and automatically generate test reports for convenience Establish management files of equipment operating conditions. It can test voltage, current, power, harmonics, unbalance degree, etc. It can perform three-phase unbalance test, single-phase load test, and one host can control multiple auxiliary computers to achieve high-power load test. You can choose to perform inductive, capacitive, resistive and other tests as well as power sudden increase and sudden discharge test functions.

The prominent application of SLT-220/380 AC dummy load in the communication industry:

(1) Detect the actual output power, load capacity and overload capacity of UPS equipment

1. During the engineering acceptance of newly installed UPS equipment, check whether the output power of the UPS equipment and the battery can meet the design requirements.

2. Routine inspections for daily maintenance of UPS equipment. According to the newly issued communication power supply maintenance regulations, a check discharge test shall be carried out on UPS equipment every year.

(2) Detect the output power and load capacity of diesel generators

1. When the newly installed diesel generator project is accepted, check whether it can meet the design requirements.

2. After the generator is equipped with noise reduction equipment such as muffler, check whether its output power can meet the operation requirements of the electrical equipment.

3. After the diesel generator is repaired, check whether its output power, load capacity and other performance indicators meet the requirements.

4. Routine inspection of the routine maintenance of diesel generators. According to the newly issued communication power supply maintenance regulations, the diesel generators must be loaded and tested for 15-30 minutes every six months.

(3) Detect the output power and load capacity of AC equipment such as AC voltage stabilizer, inverter, switching power supply, etc.

4. Application field of AC intelligent dummy load SLT-220/380

This product is widely used in telecommunications, China Netcom, China Mobile, China Unicom, China Railcom, nuclear power plants, electric power, civil aviation, banking, securities, military communications and other industries. It is an essential test tool for UPS equipment engineering acceptance and daily maintenance, and it is a Necessary test tools for daily maintenance.

5, SLT-220/380 safety protection

1. E-STOP emergency stop switch

2. When the three-phase voltage is too high, it will alarm and stop automatically.

3. The three-phase voltage is too low to detect, send out an alarm and automatically shut down.

4. Two temperature detections, alarms and automatic shutdown.

5. Fan failure detection, alarm and automatic shutdown.

6. With over-current short-circuit protection function, the operation is safe and simple.

7. The main power components adopt patented materials, and there is no red heat phenomenon.

8. Equipped with multiple safety protection measures, effectively guaranteeing the safety test of the equipment.

6. Free service: Any standard instrument can provide free testing services for end users, free tailor-made design services for end users on special sites, and free detailed technical information of diesel engine testing equipment:

1. SLT-220/380 AC intelligent dummy load: It can detect the output power and performance of 600KVA diesel generators.

2. SLT-220/380 AC intelligent dummy load: it can detect the output power and performance of the 1200KVA generator set.

You are welcome to call for detailed technical information, and hope that all our efforts can help you with your maintenance work!

7. Maintain new concepts:

(1) The user usually regards the backup power supply (UPS and diesel engine) as the final safety guarantee for the power supply system. Each user should pay attention to the maintenance of the backup power supply from the perspective of ensuring the quality of operation, production safety and property safety...With this Concept, the purchase of maintenance meters is no longer a consumer expense, but a long-term investment in safety.

(2) As long as the purchased maintenance instrument can help find a hidden trouble, avoid a power supply interruption accident, and restore the serious loss and huge impact of a system interruption, then all the early investment and cost of purchasing the instrument will be recovered in an instant... …