National New Year folks Hello everyone, I 宁浩博 mining company Ji Machinery Co., Ltd. with its strong technology, excellent product quality, satisfactory service, in the market enjoy a high reputation. Intelligent integrated protection with excellent quality, trusted by the user. First-class products, good service is our consistent aim! The company is willing to friends and the community work together for common development! The staff warmly welcome the global community of companies and individuals to negotiate business for a better future! You have any questions about the company and products need advice, you can call the telephone company and we look forward to your sincere cooperation. Let me take you to understand this product: PIR-800I Feed Switch Intelligent integrated protection device is the first to make a successful design for explosive gas (methane) and coal dust coal mine intelligent multi-functional integrated protection , with 380V, 660V, 1140V voltage level, the maximum current up to 1000A of the various models of feed switch supporting the use, in order to achieve a variety of protection and control functions of the above power supply system. Protector uses an advanced microprocessor and infrared remote control technology, high-precision data processing and advanced protection algorithm has the advantage of protecting high precision, fast response and so on. This protection can be achieved total leakage protection switch, (sub-switch selective leakage protection), leakage lockout, overload, short circuit, phase imbalance (including off-phase), under voltage, fault finding, testing, wind power, gas, telecommunications, etc. protection features. Technology is mature, powerful, easy to maintain, the machine has been made explosion-proof certification. Uses an advanced microprocessor, high-precision data processing and advanced protection algorithms enable fast and accurate response rate can be used for setting the total, sub-switch, while protecting the device can automatically identify the total, sub-switch. Cost-effective, there is a large market share, has sold nearly twenty thousand units, and safe operation of four years. Chinese LCD, green backlight, large screen display information-rich, easy to split design and installation. The protection function parameters can be selected via the menu adjustment, wide application, protection of high precision, precise movements. Domestic devaluation power direction leakage protection, three are accurate and reliable leakage protection. Reliable communication functions, and have extended functionality; otherwise optional protection options, the user can choose according to their actual needs of wind power and gas detection and protection function (optional add). The main performance standards MT871-2000 rated this protection has a very wide rated operating current value, the key operation through software tuning, by 40A to 1000A, in steps of 5 ~ 20A (internal software automatically adjusts the step size) Short circuit protection Short circuit protection Setting current value continuously adjustable tranches were rated current switch twice, 10 times with an accuracy of ± 5%. Short circuit protection time of less than 100ms. Overload constant action time 1.05 2h no action 1.20 0.2 ~ 1h action 1.50 90 ~ 180s 2.00 45 ~ 90s 4.00 14 ~ 45s 6.00 8 ~ 14s undervoltage protection: the software setting for 60 to 85% of rated voltage, operating time 1S ~ 5S adjustable. Off phase unbalance protection: unbalance factor (= 1-I1 / I2, I1 = three-phase current minimum current value; I2 = three-phase current maximum current value) of 50 to 100% by software tuning, action time To 1S ~ 10S adjustable. Leakage blocking function: Before closing the feed switch, capable of power lines on the ground insulation testing. When the feed switch of the insulation to achieve leakage lockout after bad, when the main circuit insulation resistance rises to 1.5 times the value of the lockout, automatic discharge leakage blocking state. 380v 7KΩ + 20% 660V 22KΩ + 20% 1140V 40KΩ + 20% leakage protection: protection when playing the master switch position closing the main line leakage phenomenon occurs or is too long branch line leakage, the main switch in the set time within tripping. Leakage protection operating time can be adjusted range 50mS ~ 500mS. 380V 3.5KΩ + 20% reliable action 660V 11KΩ + 20% reliable action 1140V 20KΩ + 20% reliable operation of selective leakage protection protector playing in sub-switch position, the closing of the branch if leakage phenomenon occurs, the local branch way switch will trip, while the other branch switches and master switch will not trip. 380V 3KΩ ~ 7KΩ reliable action 660V 5KΩ ~ 13KΩ reliable action 1140V 5KΩ ~ 20KΩ reliable operation of the standard configuration PIR-800KD1 a YJ01 LCD protector DY01 a power module 1 LH01 \ LH02 zero sequence current transformer a transformer 3 34-pin data cable 1 8-core wire a button using the ambient atmospheric pressure 80 ~ 106Kpa. Maximum ambient air temperature does not exceed + 40 ℃, the minimum of not less than -5 ℃. Ambient air relative humidity less than 93 ± 3%, (ambient temperature of + 25 ℃). Not enough to corrode metal and damage the insulation of gas environment. No dripping water and flooding the place. Installed in the 660V or 1140V power distribution unit explosion chamber for explosive gas (methane mixture) mine. [PIR-800 feeder intelligent integrated protection device] ??????? PIR-800 feeder intelligent integrated protection device for my company's first-generation intelligent protection device for mine feed switch covers 380V, 660V, 1140V voltage level, 40 ~ 1000A rated current, all-digital tuning. With undervoltage | overvoltage | overload | short circuit | Unbalanced | break with | leakage blocking | leakage protection | selective leakage protection function; with four remote RS485 communication function; with fault memory and inquiries; with test functions via the menu . Is the first smart feeder protection device. Note: For side shell electric sub-closing a mine ,? feed switch rated current measurement techniques used parameters: 40 ~ 1000A 2 ,? Rated voltage: 10VAC 3 ,? Rated frequency: 50Hz 4 ,? content measurement: U, I , R, U0, I0 5 ,? Accuracy: ± 3% 6 ,? switch input methods: optical isolation environment an altitude of no more than 2000m, the air pressure is 80kPa ~ 110kPa 2, the ambient temperature is -5 ℃ ~ + 55 ℃ 3, ambient air relative humidity less than 95% (+ 25 ℃ when) 4, no obvious damage to the insulation of 5 atmospheres, to prevent dripping local standard Host a zero-sequence current transformer a current transformer 3 is a power supply monitor a data line 2 above is the introduction of this product, if you have any questions please contact us, you can also visit to the company site.