Three-phase AC test load box load counter performance test dummy load generator power UPS uninterruptible power supply routine maintenance load box 1, System Overview AC load box is mainly used for UPS, generators and other AC detection applications. Analog resistive load, can detect generators, UPS, AC performance at different loads. Power segmented into uniform application of optimization in order to meet the needs of different loads. Resistive load using the new power components, thermal resistance and seal mounted in a stainless steel tube, external heat sink pipe with insulation, moisture-proof, corrosion resistance, heat resistance, high insulation, safe and reliable. Resistive element power density, three-phase current balance, no red-hot phenomenon, independent cooling fan, ensures heat dissipation and life of the entire system. The 19-inch standard rack load overcome water resistance test system can not accurately control the size of the resistance, boiling water is easy, easy to scale; can not be sudden load / sudden load shedding test, difficult to control and so on. Water resistance of the upgrading of products, the product safety, low maintenance costs. Low noise, strong overload. Fans imported fan with air flow, heat dissipation, low noise characteristics. The load box is small, beautiful appearance, style diversification, good heat dissipation, low temperature, stable performance, long life, easy to move, easy to transport, easy to install and operate. 2, the main functions and specifications 1), load rated input voltage: AC220V (± 10%), frequency 50HZ / 60HZ. 2) power factor: PF1.0. 3), capacity: 15KW, 3KW, 3KW, 1-3KW (adjustable), 1-3KW (adjustable), a total of five. 4) Power supply: single-phase AC220V / 50HZ. 5) Cooling: forced air. Three-phase AC test load box load counter performance test dummy load generator power UPS uninterruptible power supply routine maintenance load boxes specializing in research and production of high-power load of high-tech enterprises, the products meet or exceed national standards for a variety of military standards or generators testing requirements. 6), load mode: Binning setting and adjustable settings. (1): first an independent load power sub-file: 3KW, 3KW, 3KW, 3KW, 3KW (total 15KW) Dimensions: L * W * H / 560 * 450 * 760 (2): The first two independent load power points file: 1KW, 1KW, 1KW (total 3KW) L * W * H / 600 * 500 * 220 (3): The first three independent load power sub-file: 1KW, 1KW, 1KW (total 3KW) L * W * H / 600 * 500 * 220 (4): The first four independent load power sub-file: 1 ~ 3kw continuously adjustable resistance (varistor using hand-cranked design) L * W * H / 600 * 500 * 220 (5): The first five separate load power sub-file: 1 ~ 3kw continuously adjustable resistance (using hand-varistor design) L * W * H / 600 * 500 * 2207), display and communication: each load case there voltage, current, power detection value of the digital meter LED display, RS485 communication interface with a data processing software, test data can be processed. Three-phase AC test load box load counter performance test dummy load generator power UPS uninterruptible power supply routine maintenance load box 8), load measurement accuracy: ± 5% 9), load protection: Over-temperature alarm beep overtemperature protection . 10), dielectric strength, insulation resistance, leakage current test level project complies with the following rating standard (or test conditions) insulation voltage (AC input - ground) 1500Vac should be able to withstand one minute, leakage current ≤10mA, no breakdown or flashover. Insulation resistance (AC input - ground) 100MΩ at normal atmospheric pressure, relative humidity of 90%, the test voltage is 500Vdc, the leakage current <3.5mA input 265Vac, 50Hz 11), Work: work for more than 24 hours. 12), the control mode: can a single group, can also be used in parallel (three sets, four or five groups of two each). 13) Ambient temperature range: Operating temperature -20-55 ℃, storage temperature -40-85 ℃ 14), external dimensions: 15) Move: adopt universal casters for easy mobility Key words: load box | AC load box | DC load box | high power AC load box | R load box | RCD load box | RCL load box | feedback type load | non inductive load | load box lease | 19 inch standard rack load | PV | inverter test load box three-phase AC test load performance test dummy load generator cabinet UPS uninterruptible power supply load box routine maintenance