Test Resistance Load Device - List of Manufacturers, Suppliers, Companies and Products

Test resistance load device [Device for testing standalone operation prevention function]

Load capacity of approximately 20kW! Supports three-phase unbalanced loads! Various settings can be changed according to test conditions, including three-phase and single-phase configurations.

The test resistance load device is designed to be used as a load for adjusting the power flow balance during the standalone operation prevention function test of power conditioners in solar power generation systems, or to prevent reverse power flow. The maximum load capacity is 21.8 kW, which can support up to five units in parallel operation for a typical household power conditioner (equivalent to 4 kW). 【Features】 - It is possible to switch between three-phase and single-phase according to the test voltage. - The load capacity increments are fine, with a minimum of 10 W (in single-phase), allowing for precise power flow balance adjustments. - In tests using three-phase power, the load for each phase can be set individually, enabling the creation of load imbalance conditions. - As a safety mechanism to prevent resistor burnout, two systems are installed: one that prevents the load from being activated unless the cooling fan is operational, and another that forcibly cuts off the power supply if the resistor temperature exceeds a certain level. - Switches are available in two patterns: wired and wireless. - The wired switch is connected with a 10 m cable, which can be extended up to 20 m with an extension cable. - The wireless switch is limited to the range of the wireless LAN communication, but distance extension is possible through the use of a relay.