23. Complete set of differential defense bus arrangement 330 kV and 110 kV

Functional requirements:

• differential current defense with braking;

• three-phase execution with two areas of differential defense;

• choice of area of defense on the basis of position of block-contacts of high-voltage vehicles;

• sensible organ of differential defense;

• algorithm of control area defense;

• two variants of monitoring position of disconnector/switch;

• algorithm of fixing of including of the measured current of joining in an area A (B);

• association of two areas in one, in the mode of the «broken fixing» of joining or in the case of necessity (regardless of position disconnector);

• selective disconnecting from differential defense of tires switches, connected with damage area;

• control of good condition chains of TC ( transformer of current ) of the incoming joinings;

• blocking of defense at the disrepair of chains of current;

• reserve nondirectional maximal current defense;

• Phase and three-phase starting DBRS, with control of current, positions of block-contacts of switch or adaptive combination of these two signs;

• free-programmable logic;

• amount groups of setpoints – not less than 4th;

• synchronization from the outsourcing of exact time;

• self-diagnostic of device;

• internal recorder of events;

• oscillographic testing;

• energyindependent memory;

• liquid-crystal screen on a front panel;

• state information represented on the screen of device interconnect vehicles of joining;

• user-programmable light-emitting-diode indicators for signaling;

• support of protocol of MEK 61850, and presence of standard international protocols of exchange by information for integration in ACS;

• front port of Ethernet (Rs232) for connection with a device;

• back port with an optical fibre ethernet-interface for connection with ACS substations;

24. Complete set for adjusting and verification equipment of relay protection and special automatic

Microprocessor device for verification equipment RP and SA must provide possibility and target at implementation of technical service and editing-adjusting works of all microproc and electro mechanics devices of RPA (relay protection automatic) on SS-330 kV.

Configuring and tuning settings of microprocessor devices RP and SA must be carried out by a notebook with the special software (given Contractor in the complete set of delivery). The required parameters of notebook are resulted in the table of technical information.

Verification of devices rp and sa

For providing verification of capacity equipment, implementations of adjustings works and further technical maintenance of all microprocessor and electromechanics devices RP and SA on SS-330 kV in the process of exploitation, Contractor must give Customer a complete verification device.

A verification complete set must consist of:

• microprocessor device of verification of equipment RP and SA;

• managing device on the base of notebook with the special software.

Microprocessor device verification equipment RP and SA must have a complete package of the specialized software, necessary for verification of all types devices, and also necessary for this purpose accessories.

A management a verification device must be carried out from the personal computer (notebook), manned for this purpose necessary software and by accessories. Must be provided:

• Possibility of work with primary sizes for verification basic and reserved protection;

• possibility of work on verification functions of DPD (different phase defense) ,MCD ( maximal current defense ) , DD ( distance defense );

• possibility to work with RIO by files;

• support of format СОMTRADE.

Proof-of-concept complex for verification HF apparatuses

Trier for a generation test HF signals of tensions, analogical to those which act on an entrance HF defense and HF automations.

In retrograde through a device computer information must enter about a reaction HF devices on these test influences.

A complex must allow automatically to take off descriptions, design protocols of tests.

A proof-of-concept complex must execute generator and sensory functions for co-operating with checked up HF by an equipment.

HF generator (frequency 24 . 2500 kHz), R out = 0; 75; 150 Ohm;

LF generator (frequency is 20 Hertzs . 24 khz);

Source of control current (0 . 250 V=, 10 W);

HF and LF generators change frequency (in relation to set) both by (through virtual devices with a necessary step) hand and automatically.

The results of measurings must be designed as charts and tables, in form standard protocols and at pleasure to be accessible for unsealing on a printer.

Software must function in the environment of MICROSOFT WINDOWS XP / 7 or higher software providing must function in the environment of MICROSOFT WINDOWS XP / 7 or higher.

25. Low-voltage complete devices (LCD). Closets with the microprocessor terminals of defense

Requirements to execution

Climatic execution and category of placing of UKHl4 for GOST 15150-89 and GOST 15543.1-89. Degrees of defense of Ip40 on MEK 529 (GOST 14254-80).

LCD must be protected from electromagnetic hindrances, conditioned an origin s.c (shorting circuit ) .The corps of closets must be grounded..

Requirements on safety

Requirement to technique safety must correspond GOST 12.2.007.0-75, GOST 12.1.004-91 and to the requirements of RSEI ( rules of setting electrical installation ).

Structural requirements

A closet with a transparent front and steel postern must have sizes 2200x800x800 (HxWxD).

A closet must be equipped all wiring, terminals, relay, by lamps et al needed by accessories, subject approval by Customer.

Electric descriptions

Electric descriptions of closets must correspond GOST 22789-94.

Thus nominal parameters must have next values:

• operative current - permanent;

• nominal tension of chains control current - 220 V;

• working turn-down tension of chains control current - from 0,8 to 1,1 U of nohm;

• nominal tension of the second chains variable tension - 100 V, (50 Hertz’s);

• nominal current of the second chains of alternating current – 1A or 5 A in depending on the transformer of current (50 Hertz’s);

• nominal tension of auxiliary chains - 380/220 V, 50 Hertz’s.

Requirements to electric connections

Contact connections of wires in a low-voltage equipment must conform to the requirements GOST 10434-82.

Editing of wires - buildings.

For editing a copper, solid wire must be used, except for connections with mobile elements for which a wire must be flexible.

Section of wires concordantly RSEI p.3. 4.12, but no less:

• for current chains and chains of tension are 2,5 mm;

• for other chains are 1,5 mm.

Wires must not have a pull.

The electric editing must not hinder access to the removable and managed elements for examination, verification and their replacement.

The ends of free wires must be isolated.

All wires and apparatus must have marking, proper indicated on an of principle chart and chart of connections.

Contact connections of wires in LCD must correspond GOST 10434-82.

Requirement to the rows of clamps

These requirements do not spread on power clamps.

The rows of clamps must be set apeak on the assembling side of closet and disposed on the left and right side-frames.

Placing of clamps and apparatus on panels must provide comfortable access to the clamp of the second chains on any terminal.

Clamps must have connection "screw-screw" for the nominal section of explorers to 4 mm with a maximal loading current no less than 16 A and by nominal tension no less than 400 V.

Clamps must take from measurings clamp with release, communicating terminals and terminals with slide-type disconnectors.

Communicating clamps must be set in the chains of permanent and variable tension, operations in which will be executed an operative personnel with the use of separate make-and-break devices (switches, proof-of-concept blocks, sockets etc.). Number them determined a project for every panel concretely.

Communicating clamps with dis-connector must be set in the chains of direct-current, operations in which will be executed a relay personnel (chains of signaling, chains to the recorder of emergency events, chains of starting of commands of teleacceleration, prohibition ARI etc.). Number them determined a project for every panel concretely.

Clamps with slide-type release must be set in the measuring chains of TC (transformator of current) and TT (transformator of tension).

Contacts and all belongings of current-carrying chains must be protected from a casual touch in obedience to the standard of safety.

The construction of terminals must eliminate possibility of casual shorting nearby clamps.

In a complete set deliveries must be bridges, foreseen a chart (by a working document).

Class of inflammability for all types clamps V0 on the standard of Ul94.

Basic descriptions of clamps must conform to the requirements of standard of IEC 7-7.

Requirements to the make-and-break switchgears

• The switches set in closets must provide reliable commutation of currents from 2 to 1000 mA at nominal tension 220 V.

• Transitional resistance of contacts make-and-break devices must be no more than 0,002 Ohm.

• The wearproofness is more than 25000 cycles.

• Durability of isolation - 1000 V, during 1 minute.

Requirement to editing of apparatus

All make-and-break devices, proof-of-concept blocks, relays must be disposed on the external facial surface of closet.

Microprocessor devices of defense in a closet it is necessary to place at level, comfortable for service (height 1,4 - 1,7 m from the level of floor).

For fastening apparatuses must be used assembling laths.

Resistors, diodes, condensers must take place from the back (editing) side of plane for setting of apparatus.

Every vehicle must have marking in accordance with denotation of vehicle on an of principle chart.

Inscriptions of make-and-break devices, alarm apparatus etc. must be disposed under a device in a scope for inscription. Inscription must include marking and setting of vehicle.

Requirements to reliability

Reliability of low-voltage complete equipment indexes must correspond GOST 27.003-90, GOST 20.39.312-85.

Requirements to fire safety

The construction of closet must correspond the terms of fire safety in accordance with GOST 12.1.004-91.

Kitting

In the complete set of delivery LCD must enter:

• closet with the internal editing of all necessary elements, including microprocessor device;

• standard complete set of spare parts, recommended a factory-manufacturer;

• operating document on ukraine /russian language.