10. Spare Parts and Special Tools

The Contractor shall deliver the regular kits of spare parts (mandatory spare parts) along with equipment, as well as materials and accessories required for the employer`s personnel to be able to eliminate, by its own efforts, any possible faults during operation.

For each relay protection type to be supplied, the kit of spare parts shall include at least the following:

• processor unit: 1 piece,

• power supply module: 1 piece,

• current analog input module: 1 piece,

• voltage analog input module: 1 piece,

• digital input module: 1 peace,

• digital output module: 1 piece.

The delivery set of every microprocessor-based protection device shall contain complete service software (settings changing, reading of oscillograms and sequence of events, archived in the device) on CDs in three copies (three licenses).

The delivery set of every microprocessor-based protection to be supplied shall contain accessories needed for device configuration by means of PC, as well as power and control cables for power supply arrangement, control, automatics, relay protection and alarm wiring.

The common substation information system delivery set shall include:

• cable systems (including fiber-optic) for communication with microprocessor-based protection and special automatics protection devices;

• devices and components necessary for system operation;

• complete software on CDs (three copies).

In its Tender the Contractor shall propose the lists of spare parts for each type of equipment with indication of per item price, which are recommended by equipment manufacturers considering 10 years operation and maintenance period after warranty expiration date. A cost of such indicated spare parts will not be taken into account by the Employer when evaluating the Tenders.

11. Warranty Maintenance

Upon completion of the equipment erection and testing , the Contractor shall provide its warranty maintenance.

Warranty maintenance shall be provided by the Contractor during warranty operation period, which shall be at least 24 months from the equipment commissioning date.

Within the warranty operation period, the Contractor shall remove all revealed defects and/or failures within not more than 72 hours.

The Contractor shall provide guarantee certificates from the devices manufacturers about the repair possibilities (including factory repair) of the supplied devices against separate contracts within 10 years of operation after warranty expiration.

12. Requirements to Methodology Buidelines Regarding Selection of Setting for Relay Protection and Special Automatics

The methodology guidelines regarding selection of settings for relay protection and special automatics shall be provided in Ukrainian (or Russian) language.

The methodology guidelines regarding selection of settings for relay protection and special automatics shall cover all range of functions of protection and automatics (including emergency automatics)provided by the Contractor and approved for application by the Employer.

The methodology guidelines regarding selection of settings for relay protection and special automatics shall comply with the requirements of current Ukrainian technical rules and regulations, technological design requirements (PUE, PTE) and shall contain recommendations referring to settings calculating and protection relay and special automatic device parameters adjustment (including technological) for all functional parts included in the supplied protection and special automatics devices.

The methodology guidelines regarding selection of settings for relay protection and special automatics shall comply with the certain device type supplied for the given site. Before developing the methodology guidelines, the Contractor shall approve with the Employer which namely methodology guidelines shall be provided in the scope of this project. If the Employer has the methodology of settings selection for certain equipment type, these methodology guidelines shall not be supplied in the scope of this project.

The methodology guidelines regarding selection of settings for relay protection and special automatics shall take into account the following requirements:

• sensitivity to all types of short circuits shall be checked , taking into account transient resistances and power flow in forward and reverse direction;

• selectivity of different protection stages shall be checked both for protections performed on one principle and on different principles (for example – overcurrent and distance protection). For distance protections the recommendations for compliance with different types of characteristics ( for example – circular and polygonal) shall be provided as well as for reverse directed stages ;

• recommendations for healthy phase instrument movement offset at single-phase short circuits, with emergency power flows, in a single phase auto reclosing cycle with the process dynamic, as well as at circuit-breaker phase power-up diversity;

• recommendations for load dependency adjustment, which is also for reverse directed stages;

• recommendations for swing interlocking settings calculations.

• Triggering element characteristics, which are responding on changing of resistance , current, power and angular correlations;

• Blocking parameters setting ( by unbalance , impedance rate of angle between monitored vectors of currents, sliding value voltages, etc);

• time parameters settings.