Diesel generator/turbine generator AC load bank maintenance load testing & commissioning

As various generators provide emergency standby power supplies after mains power failure, most of the time the generator/gen set is in the standby status, and it is required that the generator immediately starts power in case of mains power failure, if not, the standby generator, UPS and backup power system will lose its meaning! Practice has proved that strengthening the daily maintenance inspection of standby power systems can effectively prevent accidents. Many serious failures and accidents happen, mostly caused by a lack of AC load bank preventative maintenance. Only scheduled load bank maintenance procedures, regular load bank maintenance testing and validating specifications for generator, there could be risk-free, take precautions to nip. JUNXY provides a series of intelligent generator load bank test power solutions, which can accurately detect the output power and load capacity.

· To help users achieve various types of generator maintenance testing:

· accurately detecting a long time diesel generator output power and load capacity.

· the new generator project acceptance, its output can meet the contract requirements.

· Installing muffler, generator room, after entering the exhaust noise reduction measures, its output is affected. Back pressure, and exhaust air power correction factors such as inadequate.

· intelligent communication load can be distributed load, you can load/unload of 100% detection, detect the running test of generator sets in a variety of work environments.

· generator, after overhaul, testing its power output, load capacity and performance indicators to meet the requirements.

· generator maintenance routine testing, issued under the new code requirements for the backup power supply maintenance, test machine 30-60 minutes to load diesel generators annually.

Generator ac load bank testing process and testing purposes

The power test service will reach the following target:

· Generators can achieve the rated power

· Preventative load bank test could avoid the generator wet stacking free away from rated capacity reduction

· The generator steady state loading ability

· The generator transient state loading ability

· Generator setting test by PC software

· Generator fluctuation test by PC software

· Load profiles generator load bank test

· Unbalanced three-phase operation of generator capacity;

· Generator set overload compliance (optional);

· Generator set targets to reach of the required specifications

· To detect generator security risks before they occur.

Resistive AC Load Bank--Why need load bank testing ? Once your standby power supply systems say UPS(uninterrupted power supply), battery bank, generator, transformers, inverter etc are switched to be loaded when the main power supply in maintenance procedure or stop abnormally, it is really critical to ensure that they MUST be working in good condition when you need them most, especially for those located in harsh, dusty or corrosive environment.

Such stand by & inactive power supply systems could fail without proper preventative maintenance. JUNXY provides a whole range of custom preventative maintenance products solutions to ENSURE constant uptime for your power systems and make you prepared for anything. Downtime could also be reduced by regular preventative maintenance and thorough inspections which are the key to power supply systems maintenance.

What could be achieved by JUNXY AC load banks ? JUNXY AC load banks could help highlight the potential hidden faults of the power supply systems before they could cause a power disruption. bThe FIRST goal achieved when testing with JUNXY AC load bank is to ensure if your power supply system is reliable or not by validating the power systems’ outputs to its technical specifications, which is the MOST IMPORTANT question that JUNXY series AC load bank could answer you. A wide range of conditions that could threaten a power system could be detected by JUNXY load banks, say defective equipment, design errors, flawed construction, emissions, natural aging, improper settings on system control components and the negative effects of underutilization.

What products solutions does JUNXY provide ? JUNXY series AC load bank testing offers you whole solutions of predictive failure analysis for UPS(uninterrupted power supply), generator, transformers, PV system, inverter etc, to validate the condition and output of such power systems comprehensively. Integrated AC & DC load bank could be made in one unit or separately with different load voltages as per your need for different applications. Our solutions includes (click to view more): (1)Pure Resistive AC Load Bank(R) & (2)Rack Mounted AC/DC Load Bank 

How is JUNXY load banks resistor ? Highly reliable and durable new alloy resistor is used for the JUNXY’s AC & DC load bank. It is thermal shrinkable and seal installed in the stainless steel pipe, whose surface with insulated heat sink. The resistor is moisture-proof, anti-corrosion, good heat dissipation, high insulation resistance, safe and reliable.

What are the JUNXY load bank control modes ? Two control modes available for JUNXY AC load banks: The local panel control mode by push buttons, mini circuit breakers and etc and the remote control mode by PLC through PC software. Local control mode will be locked once load bank is switched to remote control mode. By applying the PLC, we could make load bank an intelligent test system, load power curve could be preset through PC software and all electrical parameters of EUT(equipment under test) including current, voltage, apparent power, active power, reactive power, power factor, frequency and warning info could be achieved automatically by the PC software and displayed by load bank digital meter. Up to 15 load banks at most could be parallel controlled by PC software which generating the test tables, curves and standard test report.

Resistive & Reactive AC Load Bank--Resistive & reactive load banks are able mimic motor loads and electromagnetic devices within a power system as well as purely resistive loads by offering the ability to set a specific power factor (pf). Many backup generators and turbines are rated at 0.7, 0.8 or 0.85 power factor and need to be commissioned at nameplate capacity using a combination of resistive and reactive load to fully qualify their operating capability. Using a resistive & reactive load bank enables comprehensive testing from a single unit. JUNXY has an extensive range of resistive & reactive load banks to simulate these types of loads on a power source and the transformers, relays, and switches which will distribute the power throughout your facility.

Inductive & capacitive load banks are reactive only and must be used in combination with a resistive load bank to provide the desired load profile to test a power system. Reactive loads banks can provide either a leading power factor (Capacitive) or lagging power factor (Inductive).

Islanding effect is not allowed in the solar photovoltaic power system regarding the power quality and electrical safety, since it will cause potential threat and damage to the electrical equipments. JUNXY RLC load banks are mostly used for inverter anti-islanding preventative test experiments which meets the PV & grid inverter testing requirements for islanding prevention detection, work efficiency test, overload protection test, over current protection test, power factor test, grid current harmonic test, resonance point test, and so on. PV Transformer and battery system maintenance should al