Shenzhen generator rental protection principle automatic air switch: 1), undervoltage protection principle generator output voltage is normal when the load on the power supply 800KW generator rental, loss of pressure release button TA solenoid coil through the normally closed contacts and automatically switch normally open auxiliary contact (already closed after closing) connected to the power supply side of the line voltage. 2 solenoid coil is energized, the electromagnetic suction greater than 5 spring tension, shock rod 4 being sucked down, automatic switch in the closing state. Due to loss of pressure release for generator voltage protection device voltage setpoint start tuning in less than 70% the amount of voltage generator, transient episodes, so when the generator output voltage drops to undervoltage protection setpoint When the electromagnetic attraction is less than the spring tension, shock hit the lift rod hook to hook the lever disengages automatically switch under the action of spring breakers automatically trip. When you need the remote control, press the TA button tripped. 2), overcurrent protection schematics an overcurrent tripping the overcurrent protection device consists of two electromagnets release components. When the current is normal when the generator output overcurrent trip electromagnet suction less than the spring tension rod hook hook and hook prison, automatic switch is closed, the state shown in Figure 1. When hair generator output overload current is greater than the setting value starts overload current generator rental, solenoid coil suction greater than the spring tension, dynamic street iron absorption, the impact on the lift rod hit the hook, hook it with the rod disengage the automatic tripping. Relevant electrical codes and national standards, a class of high-rise buildings should be a load of supplies. A load power is generally: Important laboratory television and radio stations, civil airports, railway stations, banks, county (district) level and above hospitals, city (district) and more stations, important office buildings, universities and the Academy of Sciences , major museums and computing centers. A load, requiring power system during normal operation or whether it is an accident, can ensure continuous power supply. So for a load, by two independent power supply, according to production needs and allow the power of time, dual power automatic or manual switching, packet or dual power supply wiring while 300KW generator rental, general next, there should be an emergency power supply for use. If a load is not, you can use batteries, generators and other equipment owned 400KW generator rental, or to obtain a second independent power supply from neighboring units. Here said two "independent power" refers to either one of power supply failure or maintenance outage occurs, without affecting the other to continue to supply power. Emergency power range of applications: · Fire Facilities electricity: fire pumps, fire lifts, smoke facilities, automatic fire alarm system, emergency lighting, electric fire doors. · Security facilities of electricity: security signal power, emergency lighting, road lighting. · Medium-sized computer system power. · Luxury hotels, important office buildings, commercial and financial buildings in the central control room and computer management system. · Has an important political and economic significance of some of the power and electricity for lighting. 500KW generator rental | diesel generator (certified) | Guangzhou generator rental is provided by diesel Electrical Equipment Co., Ltd., Dongguan ShangXi. Electrical Equipment Co., Ltd., Dongguan ShangXi Chai (www.dongguanfadianji.cn) is an industry leader in Dongguan, Guangdong, diesel generator sets, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. On the diesel generator leadership with the staff warmly welcome all inquiries negotiations to create a better future for diesel generators.