Box-Type Substation Mobile Test Vehicle

Overview: the system performs sampling tests on transformers, box-type substations, reactors and arc-suppression coils. It uses a highly integrated, unified structure in which the test power supply, control circuits, display and measuring equipment are all integrated into one unit.

Architecture: the test vehicle is divided into a human-machine interface terminal and an integrated test unit. The test unit contains an intelligent measurement module, a power distribution module, an automatic wiring-changeover module and a wiring indication module. It calls up the intelligent measurement module, power supply module and changeover device automatically and starts the tests item by item, automatically completing voltage and current output, parameter measurement, range switching and data upload for each test item.

Construction: a standardised modular structure is used, with an external form and structure unified with the other intelligent measurement modules. The modules are built into the vehicle and use a plug-in structure for easy maintenance and for sending them in for periodic verification.

Detachable structure: for indoor transformers that the mobile vehicle cannot enter, the test unit is separated from the vehicle. The unit is supported by the on-board hydraulic rods and lifted clear of the vehicle body; the test unit then extends its own wheels automatically and is driven electrically to the position of the transformer under test.