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The use of the dynamic voltage restorer (DVR) is preferred for the mitigation of voltage quality disturbances. In this paper, the real-time application of a 5-level transistor clamped H-bridge inverter for the single-phase DVR to realize the voltage sag mitigation is discussed. The controller is realized by comparing a sensitive load voltage with a reference voltage generated by the unit vector template method. MATLAB Simulink software is used to test the ability of the developed DVR by employing the in-phase and pre-sag compensation techniques. In addition, an experimental evaluation is performed in real time to observe the compensation capability of a 5-level transistor clamped H-bridge DVR. The design details of developed DVR are discussed, a prototype of DVR is also built in the laboratory. For verification of the capability of proposed DVR topology for voltage sag mitigation, experimental findings are presented. [ABSTRACT FROM AUTHOR]