Inputs are «insulating gas-air»

The opened inputs of «insulating gas- air» for connection between GIS and VL (or AT) or typical equipment with an air isolation must be equipped in obedience to the enclosed chart.

Inputs must correspond the proper standards of IEC.

Inputs can be with composite insulators or with porcelain insulators.

The level of isolation is applicable to normal the atmospheric terms of placing of SS. Pathlength loss of external isolation of the opened inputs it must be not less than 25 mm/kV.

Insulating switch a busway and his fastenings must be part of supplying with GIS.

Flanec and connection of wires between an input and construction of GIS must correspond the standard of supplier GIS.

 

CONNECTING OF POWER CABLES

Connection of cable with GIS and proper cables are part of supplying with GIS.

An end cable muff and cable accessories are part of supplying with a producer GIS.

The cable connecting must assume the separation of cable and GIS during the lead through of high-voltage tests.

An interface specification between a supplier GIS and producer of cable must correspond recommendations of IEC.

 

TESTS

All equipment is offered in accordance with this specification must pass model tests in accordance with last with standards IEC. A producer must give Customer of confirmation of lead through of model tests.

Next model tests must be executed:

protracted possible current and exceeding of temperature;

measuring of resistance a current chain;

tests of circuit-opening and locking ability;

test a brief current and maximal current;

tests on dielectric firmness:

tests of pressure.

All main parts of equipment must pass factory tests on a production.

The planned tests must be conducted, following recommendations of IEC 62271-203.

A producer must give a customer on assertion chart of lead through of the program of certain factory tests.

 

A producer must send the customer of copy of reports, describing the completed factory tests.

After editing and before starting in exploitation, the tests of isolation of GIS and rightness of work of equipment must be conducted.

Tests must be conducted, following recommendations of IEC 62271-203. Dielectric tests must be conducted, following the point of 10.2.101.1.3 Procedury V. Definition of partial digit it must be executed concordantly IEC 60270.

 

MARKING, PACKING

 

Every module cell of GIS must have a tablet with nominal information and information, required IEC 62271-203.

Every measuring transformer must be supplied the tablet with information, required IEC. This tablet of information must be fastened on the second terminal box of every measuring transformer. Inwardly or next to every box there must be a chart of chains of measuring transformer, with all marking of device.

A size of load must be so large, as far as it is practical possibly and must reduce the amount of expenses on works on setting. The cells of switches must be supplied fully mounted, ready for setting in GIS in place. Management closets also must be supplied collected, tested and shipped together with the cell of switch.

The type of the in-use packing must correspond popular facilities of delivery and transporting from a factory-manufacturer to the erection site. The in-use methods of delivery and packing must be given Customer on assertion.

The in-use methods of packing must befit for the protracted storage on working place under a cover, at external climatic terms, prevailing on working place. Into packing GIS must be there is enough absorbent material, to absorb possible surpluses of moisture.

Flange`s of connections of every cell must be protected, to prevent damages and hits of contamination in gas compartments.

Insulating gas for the primary priming of all switching substation must be supplied separately in bulbs, promarked in accordance with international norms. Additional gas must be put, to produce refueling at possible decompression at the primary priming. The packing list of every unit of equipment must represent every detail. Description must identify every detail.

 

GUIDANCES

For implementation of assembling works and subsequent works by a personnel on service and management, a producer must give next guidance’s:

1. Section of service;

2. Section of tests in place of setting;

3. Section on service and exploitation.

Guidance’s must include the complete list of all drafts, geared-up a producer, list of spare parts and list of parts of every component or part of equipment.

 

Terminators of overstrain

Terminators of overstrains (TOO) 330 kV, 110 kV - single-phase, outward setting, with a polymeric isolation.

TOO must be set on isolatings supports, and also must be supplied screening rings for protecting from koronirovaniya and providing of equitability tension on all length of terminator from top to bottom.

 

The terminators of overstrains must be manned the system of monitoring of the state with integration of it in ACS substations.

 

Every terminator of overstrains must have a meter of number of wearing-outs and sensor of current of loss, which is fastened directly on support.

 

The basic requirements to to TOO must be certain concordantly GOST 52725-2007 «Terminators of overstrains nonlinear for electrical installation of alternating current tension from 3 to 750 kV».

 

Device for monitoring of the state TOO must be completed transceivers (by the receivers of information from touch-controls). Technical descriptions can be specified at signing of agreement of supplying to the products.

 

System of monitoring of the state must have TOO, but unreserved, by next functions:

 

· registration of wearing-outs is TOO;

· fixing of time of wearing-out;

· fixing of value of impulse of current of passing through TOO.

· measuring of current of loss.

 

Other parameters, required Customer, are indicated in "Table of technical requirements".

 

 

Shield of own needs 0,4 kV

The shield of own needs must have two inputs with circuit breakers, sectional switch. Every section must have no less one closet of outgoing lines. Outgoing lines are on the defensive circuit breakers.

 

The circuit breakers of inputs and sectional switch must have remote and local control.

 

The circuit breakers of outgoing lines can also have remote and local control.

 

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

 

Electric descriptions of closets must correspond GOST 22789-94.

 

A shield must be equipped all wiring, terminals, alarm relays, by lamps et al needed by accessories.

 

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

 

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

 

Contacts and all belongings of tokoveduschikh 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 of nearby clamps.

 

On the inputs of feed 0,4 kV shield to foresee setting of electricity supply meter of class of exactness of «1», with two interfaces of RS 232 and RS 485 and additional feed for ASCB.

 

A shield must be equipped the elements of the controlled from distance control and management, and also inspector of management introductory and sectional automats, control of electric parameters with possibility of reception and delivery of signals in the system to ACS.

 

Possibility of delivery of signals must be foreseen about the state of automats (included, power-off) and position of the management (local and distance) key, and also signal about work of ALT in the system to ACS.

 

In the complete set of supplying with a shield must enter:

 

· closets with the internal editing of all necessary elements.

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

· operating document on Ukrainian/Russian language.

 

Other parameters, required Customer, are indicated in "Table of technical requirements".