High Voltage AC/DC Load Unit is used to test the loading capacity and ageing degree of AC 380V triple-phased equipments, (e.g. diesel oil generator sets, online high power UPS, converters, etc), and the discharge of high voltage DC 400V equipments (e.g. battery sets, DC power, etc). The power-consuming section using hand-tailored patented components (patent no. 02203924.4), ensures high power consistency, no red-hot, and automatic overheat protection, thus can prevent the load unit from overheat or burn-up even the fan is accidentally out of order. The use of minitype single-phase φ150 fans to make dispersed wind supply has significantly reduced the noise output. The unit has the comparative advantages of high reliability and safety, low-noise, and cost-saving over import products, and provides a scientific measure for the test and maintenance of AC/DC power equipments.

Main Features

· Digital Real-time Display, modularized design, easy operation and maintenance.

· No defined order for AC triple-phase leads, easy to connect.

· Power is set via a multicircuit adjustable resistance.

· The AC/DC main loop enables the unit to test both DC and AC equipments, thus highly enhances the product applicability.

· The unit using PTC components has automatic overheat interdict protection. When fans are accidentally out-of-order, the overall current is approximately 0.8% of the rated current, and the surface temperature is ≤210℃.

Main Functions

· Stepless discharge power adjustment: users can set the discharge current (DC: 0~325A; AC: 0~200A) via a adjustable resistance knob, and adjust the discharge power steplessly from 0 to the rating.

· Real-time display of test data: AC voltage, AC Current, DC Voltage and DC Current.

· AC/DC dual use: the unit can connect in AC/DC load respectively.

· Timing: users can set the discharging time, the unit automatically terminates loading once time is up.

· Parallel connection: over two load units (e.g. 2, 3, or 5) of same model can be connected in parallel via a connecting tray (optional), with flexible control and independent operation on each set.

Typical Application

The tester is widely used in the field of electricity, telecommunication, railway, military, oil field, finance, and the manufactures and users of diesel oil generator sets, online high power UPS, and DC power supply.

Technical Parameters

· Working Temperature: 0℃～+50℃

· Input Voltage: 380V triple-phase / DC 400V

· Adjustable Discharge Power Range: 30KVA~300KVA

· Digital Timer: 1min~99hrs 59mins

· Display: AC Voltage: 0~1000V Current: 0~2000A

DC Voltage: 0~1000V Current: 0~2000A