What Exactly is a Doble Test?
The Doble test is basically a power factor test performed on transformers to ensure they are functioning correctly. This dissipation testing can also be performed on MV cables and motors.
Some techs use the term as a catchall phrase for a breaker’s timing test using a shunt trip. Doble is actually an 85 year old diagnostic testing equipment manufacturer whose name has become synonymous with this form of testing. The company’s goal is to assist those in the electrical power industry streamline operational improvements and increase performance of electrical equipment.
Battery test equipment
Computer networks are tolerant to noise or data corruption because they incorporate redundancy cyclic checks on their bit stream. However, trying to recover lost data loads down the system. This introduces delays on the network and if the corruption is too much, the network may lock up. It is important to conduct regular network testing to avoid service interruptions. Damaged network cables not only corrupts the data stream but may also cause crosstalk between cables. 
