Organizations that have substations with transformers on their balance sheets are obliged to carry out periodic diagnostics and maintenance of this equipment. They can manage it on their own, if there are a full-time specialist who has the appropriate qualifications and access. Other way is to use the services of specialized companies. “Defence Technology” LLC carries out all types of work related to the diagnosis and repair of military electrical substations.
Substations of this type include transformers to change voltage levels between high transmission voltages and lower distribution voltages. It is a kind of intermediate link between supplier of electricity and its consumer. A substation is designed to serve one large object (this may be, for example, a military factory) or several that are located in close proximity (military town, landfill facilities). Due to presence of this equipment, consumer receives an electric current with a voltage of 220-380V, not simply 220V, as it comes in usual power lines. This transformation is carried out using a step-down transformer, which is the basis of the substation.
“Defence Technology” LLC provides services for modernization, scheduled maintenance and repair of military electrical substations. Our qualified specialists will fix problems, update and customize the system using modern innovative equipment.
We are always ready to cooperate, offering our services to organizations and enterprises located in any regions of Ukraine.
Errors in operation of the substation may occur for various reasons:
- Wearout of switch gear and other parts of insulation;
- Breaking in current generating winding;
- Problems with the auxiliary equipment.
The quality and duration of trouble-free operation is also affected by adverse weather conditions or violations of the rules of operation by the operating personnel. Sometimes cause of damage can be factory defects. To detect or even prevent them, our specialists will perform regular preventive examinations and then install all the parts in due order.
Depending on the condition of the power system, it may need different types of services. Usually it requires a scheduled maintenance to restore and maintain elements of the substation in working condition.
Features of transformer substations
A typical substation consists of two transmission lines (and also two transformers) – main and reverse. If a prolonged power outage would not cause material losses and would not lead to dangerous situations, there may be used just one transformer.
The equipment shall be mounted atop the concrete base or metal mast. The enclosure has special requirements. It must securely protect switching and control parts from:
- Adverse weather conditions;
- Temperature differences (from -60° С to + 40° С);
- Unauthorized entry;
- Exposure to fire in case of fire.
Therefore, it is usually used a metal, concrete or brick enclosure. To provide non-stationary military facilities with electricity, there can be used mobile models enclosed in a special container.
During the operation of the equipment, a considerable amount of heat is emitted, for removal of which it is needed a reliable and efficient ventilation system. We must not forget about fire extinguishing equipment, that can be automatic or manual. Transformer substations are equipped with an emergency lighting system. It is used during the maintenance of preventive or repair works.
Only those who have a certain level of qualification and appropriate admission are entitled to service the transformer substations. For other persons, access to equipment should be strictly prohibited.