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METAL-CLAD SWITCHGEAR «VOLGA» 6 (10) kV

MCS «VOLGA»

CONTENTS

GENERAL INFORMATION

APPLICATION. REQUIEREMENTS ............................. 3

OPERATING CHARACTERISTICS

RELIABILITY SAFETY ............................................. 4

SERVICEABILITY COMMERCIAL EFFICIENCY ............... 5

ENGINEERING SPECIFICATIONS

BASIC PARAMETERS.CONVENTIONAL DESIGNATIONS STRUCTURE ............. 6

METAL-CLAD SWITCHGEAR «VOLGA» TYPES VERSION ................................................... 7

METAL-CLAD SWITCHGEAR «VOLGA» TYPES REVIEW

Incoming and outgoing circuits' Metal-Clad Switchgear «Volga» ............................. 8

Section switch type Metal-Clad Switchgear «Volga» . 9

Section disconnector type Metal-Clad Switchgear «Volga» ............................10

Metal-Clad Switchgear «Volga» equipped with voltage measuring transformer with bus-bar' earthing connector .......................................... 11

Auxiliaries' Metal-Clad Switchgear «Volga» .............12

Busbar bridge ................................................... 13

Bus input ........................................................ 13

DESIGN

EXAMPLE OF BUILD ............................................ 14

STANDARD FIT ARRANGEMENT ...............................15

DRAW-OUT ELEMENT CABINET ................................16

DRAW-OUT ELEMENTS ..........................................17

SECONDARY CONTROL WIRING CIRCUITS CABINET ....18

CABLE JUNCTION CABINET ...................................19

COLLECTING BUS CABINET ................................... 20

LOCKS ...............................................................21

EQUIPMENT

VACUUM CIRCUIT BREAKERS ................................ 22

Сircuit breakers basic types ................................22

Vacuum circuit breaker VF12 technical data ...........23

ZRF EARTHING CONNECTOR .................................. 24

CURRENT MEASURING TRANSFORMERS .................. 25

RELAY PROTECTION AND CONTROLS/ ARC BARRIER . 26

ELECTRIC METERS. REMOTE CONTROL SYSTEM ...........27

OPERATION

INSTALLATION ................................................... 28

INSTALLATION DIMENSIONS ................................ 29

MAINTENANCE. SERVICE.CERTIFICATES. WARRANTIES ..................................................... 30

3

METAL-CL AD SWITCHGEAR 6 (10) kV | MCS«VOLGA»

ELTECHNIKA JSC

GENERAL INFORMATION

Metal-clad switchgear «Volga» is designed for 50 Hz three-phase AC electric power distribution with nominal voltage 6(10) kV.

Metal-clad switchgear «Volga» casing is made of galvanized steel, divided into cabi-nets with earthed metal membranes possessing an enhanced mechanical strength.

Metal-clad switchgear «Volga» is equipped with cartridge draw-out elements, vacu-um circuit breaker and a bus-bar system with air insulation.

APPLICATION

Metal-clad switchgear «Volga» is used both at the primary and secondary power dis-tribution levels of electricity nets. Metal-clad switchgear «Volga» are used by power generating and grid companies, industrial enterprises and infrastructure facilities.

REQUIEREMENTS

Metal-clad switchgear «Volga» is designed for indoors installation at the following ambient conditions:

sea level elevation – up to 1,000 m;

the ambient air upper working temperature value – not higher than +40 °С;

the ambient air lower working temperature value – not lower than –25 °С;

relative air humidity – not more than 80% at +15 °С. atmosphere type – II as per State Standard (GOST) 15150-69;

environment – non-explosive, not containing conductible dust, aggressive va-pors and gases which are detrimental for insulation and metal.

APPLICATION. REQUIEREMENTS

4 ELTECHNIKA JSC

MCS«VOLGA» | METAL-CL AD SWITCHGEAR 6 (10) kV

The edge-cutting trends in the metal-clad switchgear construc-tion world were taken into account in the process of «Volga” metal-clad switchgear development. A special focus was kept on providing high safety and reliability levels, serviceability of the equipment and design and technological solutions’ com-mercial efficiency.

HIGH RELIABILITY• A metal casing made of corrosion-resistant galvanized steel

is capable of withstanding excess pressure loads at internal arcing short-circuits.

• Functional cabinets (of the draw-out element, cable junc-tions, bus-bar and secondary control wiring circuits) are divided with metal membranes.

• Separate overpressure relief valves are provided for each high-voltage cabinet in case of internal arcing short-cir-cuits.

• Laying of secondary control wiring circuits in high-voltage cabinets is performed in metal cable ducts. Collecting bus cabinets of neighboring cubicles are divided with metal membranes equipped with wall tube insulators. High reli-ability switching units are employed: vacuum circuit break-ers and earthing connectors.

• Each cubicle is subject to factory commissioning tests in compliance with the IEC.

HIGH RELIABILITY• The procedure of access to high-voltage cabinets is deter-

mined by locks.• Steel shutters block the access to fixed power contacts in

control or service positions of the draw-out element.• Arc-resistant doors are closed with multiple-point lock. Vi-

sual active mnemonic diagram explicitly shows the position of the switching devices of the main circuit.

• All the routine switchings of the main circuits are possible at high-voltage cabinets’ closed doors only.

• A system of in-built mechanical locks prevents wrong ac-tions of the maintenance staff.

• All locks are performed in compliance with IEC.• The personnel protection against short circuits is provided

by the system of independent pressure release valves located on the cubicle’s roof.

• Voltage display module allows to control voltage availabil-ity/absence and to perform low voltage cable phasing.


RELIABILITY SAFETY

5ELTECHNIKA JSC


SERVICEABILITY• A possibility to perform maintenance works with circuit

breaker and to carry out high-voltage cable tests without voltage removal from bus-bar is realized in the draw-out el-ement cabinet.

• The cable junction cabinet is made having a separate door. Due to connecting buses frontal location and high draw-off point, the most optimal conditions for installation and cable junction maintenance are ensured.

• The possibility of technical maintenance and routine switching from the metal-clad switchgear front side.

• Vacuum circuit breakers do not require servicing.• Current transformers possess long connection terminals and

do not require periodic inspection and the secondary cur-rent circuits' bolts tightening in the high-voltage cabinet. The work with current circuits shall be performed in relay cabinet only.

• The cable voltage availability is monitored with voltage dis-play module.

COMMERCIAL EFFICIENCY• Availability of Russian-origin components ensures the opti-

mal price-quality ratio.• Modules manufacturing at independent technological lines

reduces time and cost for metal-clad switchgear «Volga» production.

• Module design ensures prompt components' replacement thus shortening the preventative maintenance and repair time in contingency situations.

• The possibility of selective shutdown in case of internal arc emergence ensures minimal losses in contingency situ-ations.

• Availability of steel structure Zn-Al coating prevents stain-ing process and necessity in periodic tinting of structural elements.

• Small front dimensions facilitate effective use of the new substations' interior space, allow modernization of existing substations without increasing in space required.


SERVICEABILITY COMMERCIAL EFFICIENCY

6 ELTECHNIKA JSC


BASIC PARAMETERS

ONVENTIONAL DESIGNATIONS STRUCTURE FOR METAL-CLAD SWITCHGEAR «VOLGA»

Parameter name Value

Nominal voltage, kV 6; 10

Maximum operating voltage, kV 7,2; 12

Rated current, A:

– Switchgear main circuit 630; 800; 1000; 1250; 1600; 2000; 2500; 3150

– Bus-bar 1600; 2500; 3150

Current transformers’ rated current, А 200; 300; 400; 600; 800; 1000; 1200; 1500; 2000; 3000; 4000

Power circuit breaker rated breaking current, кА 20; 25; 31,5

Short-time thermal current, kV 20; 25; 31,5

Short-time thermal current flow duration, c:

– main current-carrying circuits 3

– grounding circuits 1

Short time electrodynamic current, kV 51; 64; 81

Control and signalization circuits rated voltages, B:

– at DC 110; 220

– at AC 100; 220

– light circuits 24

Electrical insulation resistance, Mohm, not less than:

– main current-carrying circuits 1000

– control circuits and auxiliary circuits 1

Life until discarded, not less than 25

Protection level as per State Standard (GOST) 14254-96 IP31

TECHNICAL SPECIFICATIONS

BASIC PARAMETERS. CONVENTIONAL DESIGNATIONS STRUCTURE

7ELTECHNIKA JSC


Function Feeder Section circuit breaker

Section disconnector

Voltage metering Transformer Bus-bar bridge

Bus-bar input

Switchgear type L 1, 2, 3 S 1, 2, 3 D 1, 2, 3 M T BB 1, 2, 3 BI 1, 2, 3

Equipment installed on draw-out element

Vacuum circuit breaker


Bus-bar bridge Voltage

measuring transformers board

Fuses and

transformer


METAL-CLAD SWITCHGEAR «VOLGA» TYPES VERSIONS

650 mm, to 1250 А

800 mm, to 2000 А

1000 mm, to 3150 А

Metal-clad switchgear «Volga» has been developed for universal use and possibility of one- and two-side access.

Depending on the rated current, the switchgears are manufactured in three edgeways dimensional versions. Data on the different cubicle type purposes and compositions can be found in the section respective tables.

Switchgear versions

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Metal-clad switchgear type L1 L2 L3

Rated operating voltage, kV 6; 10

Rated breaking current, kA 20 25 31,5 20 25 31,5 20 25 31,5

Circuit breaker typeRated current, A

VF12

ELTECHNIKA JSC

630 • • •

800 • • •

1250 • • •

1600 • • •

2000 • • •

2500 • • •

3150 • • •

SIONSiemens

800 • • •

1250 • • •

2000 • •

2500 • •

EVOLISSchneider Electric

630 • •

1250 • •

1600 • •

2500 • •

ISM15«Tavrida Electric»

1000 •

1250 •

2000 •

VL 1 VL 2 VL 3

H 2300 2300 2300

W 650 800 1000

D 1430 1430 1430

700 850 1000

Dimensions, mm

Weight not exceeding, kg

FEEDER

Additional options



9ELTECHNIKA JSC


Metal-clad switchgear type S 1 S 2 S 3


Rated breaking current, kA 20 25 31,5 20 25 31,5 20 25 31,5

Circuit breaker typeRated current, A

VF12

ELTECHNIKA JSC

630 • • •

800 • • •

1250 • • •

1600 • • •

2000 • • •

2500 • • •

3150 • • •

SIONSiemens

800 • • •

1250 • • •

2000 • •

2500 • •

EVOLISSchneider Electric

630 • •

1250 • •

1600 • •

2500 • •

ISM15«Tavrida Electric»

1000 •

1250 •

2000 •

VL 1 VL 2 VL 3

H 2300 2300 2300

W 650 800 1000

D 1430 1430 1430

650 800 950

Dimensions, mm


SECTION CIRCUIT BREAKER

Additional options



10 ELTECHNIKA JSC


Metal-clad switchgear type D1 D2 D3


Conventional thermal current of bus-bar (3 s), kА

31,5

Main circuits rated current, A:

1250 •

1600 •

2000 •

2500 •

3150 •

СР 1 СР 2 СР 3

H 2300 2300 2300

W 650 800 1000

D 1430 1430 1430

550 700 850

Dimensions, mm


SECTION DISCONNENTOR

Additional options



11ELTECHNIKA JSC


ТН

H 2300

W 650

D 1430

650

Dimensions, mm


METAL-CLAD SWITCHGEAR «VOLGA» EQUIPPED WITH VOLTAGE MEASURING TRANSFORMER WITH BUS-BAR' EARTHING SWITCH

Metal-clad switchgear type M


Bus-bar short-time thermal current (3 s), kA 31,5

Bus-bar rated current, A:

1600 •

2500 •

3150 •



12 ELTECHNIKA JSC


H 2300

W 650

D 1430

800

Dimensions, mm


TRANSFORMER

Metal-clad switchgear type Т


Bus-bar short-time thermal current (3 s), kA 31,5

Bus-bar rated current, A:

1600 •

2500 •

3150 •

Transformer rated capacity kVA 25; 40



13ELTECHNIKA JSC


BUS-BAR BRIDGE

BUS-BAR INPUT

Bus-bar input type BI 1 BI 2 BI 3

Rated current, A:

1250 •

1600 •

2000 •

2500 •

3150 •

Boundary dimensions, mm:

W 650 800 1000

L (determined by the project) in multiplies of 50

Bus-bar input (from the rear side)Bus-bar input (from the lateral side)

Bus-bar bridge type BB 1 BB 2 BB 3

Rated current, A:

1250 •

1600 •

2000 •

2500 •

3150 •

Dimensions, mm:

W 650 800 1000

L (determined by the project) ≥ 5200 (multiple of 100)

max

D D



One-section electrical switchgear bus-bar bridge

Two-section electrical switchgear bus-bar bridge

L LW

W

W

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Metal-clad switchgear «Volga» is a steel structure consist-ing of 4 separate cabinets: draw-out element, cable junc-tions, bus-bar and secondary control wiring circuits.

DESIGN

EXAMPLE OF BUILD

15ELTECHNIKA JSC


1 – relay protection block; 2 – voltage display module for output cable line; 3 – hole for circuit breaker handle operation «ON/OFF»; 4 – hole for chassis truck handling; 5 – earthing switch position mechanical indicator; 6 – overpressure relief valves; 7 – bus-bar; 8 – contact system; 9 – insulators; 10 – earthing switch; 11 – current measuring transformers; 12 – zero-phase sequence current transformer; 13 – shutter mechanism; 14 – vacuum circuit breaker draw-out element; 15 – overvoltage arresters; 16 – cable junction;

DESIGN

STANDARD FIT ARRANGEMENT

17 – voltage measuring transformers; 18 – demountable dividing walls; 19 – insulators with capacitance divider; 20 – inspection windows; 21 – cable junction cabinet door unlocking; 22 – draw-out element door unlocking; 23 – the draw-out element electromagnetic locking; 24 – earthing switch electromagnetic locking; 25 – earthing switch position LED indication; 26 – vacuum circuit breaker position LED indication; 27 – the draw-out element position LED indication; 28 – «ON/OFF» circuit breaker operating buttons; 29 – insulators; 30 – arc protection sensors; 31 – hole for earthing switch handling.

Draw-out element cabinet Cable junction cabinet

The secondary control wiring circuit cabinet Das-bar cabinet

16 ELTECHNIKA JSC


The draw-out element cabinet is a metal casing with front door, which is closed with multiple-point lock. The door arc-resistant design prevents the arc com-bustion products emission in case of short circuit.

Excessive pressure discharge is per-formed via the valve located in the cabi-net's upper part.

Six insulators are mounted on the cabi-net back wall with internal fixed con-tacts.

The earthing switch is located under the insulators outside the cabinet.

Metal shutters of the shutter mechanism in cubicles up to 1600 A, starting with 2000 A and up to 3150 A – plastic ones. They close access to the fixed contacts automatically, relocating vertically sub-ject to the levers system when moving the draw-out element from working po-sition to control one. To ensure Metal-clad switchgear «Volga» safe mainte-nance, the shutters can be closed with a padlock.

Door can’t be opened before the draw-out element is not into control position.

DRAW-OUT ELEMENT CABINET

DESIGN

17ELTECHNIKA JSC


Metal-clad switchgear «Volga» can be equipped with all types of the draw-out elements needed for operation.

Different equipment could be installed on chassis truck depending on the metal-clad switchgear scheme:– vacuum circuit breaker;– voltage transformers;– safety fuses;– bus-bar bridge;– terminals for high voltage cables test-

ing;

The draw-out elements can take the fol-lowing fixed positions:– working, at which main and auxiliary

circuits are closed;– control, at which main circuits are

opened, while the auxiliary ones – closed;

– service, at which main and auxiliary circuits are opened, while the draw-out mechanism is outside metal-clad switchgear «Volga». Installation, re-moval and relocation of the draw-out element in the service position is performed on a special service trolley, which is supplied as part of metal-clad switchgear «Volga» package.

Optionally, the draw-out element can be complete with motorized chassis truck allowing performing relocation of the draw-out element in control and working position distantly.

DRAW-OUT ELEMENTS

DESIGN

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The secondary control wiring circuit cab-inet dimensions (width – 650, 800, 1000 mm; height – 550 mm; depth – 400 mm) allow to use different digital devices of relay protection, control, automation and power consumption accountabil-ity devices, digital converters, arc flash protection fiber-optic devices, terminal rows and other equipment of the second-ary control wiring circuits.

The following items are mounted on the cabinet doors: – control switches;– fault indicator and tripping event

lights;– electrical measuring instruments;– display and control modules of relay

protection microprocessor devices.

To protect from the environmental ef-fects, anti-condensation heating ele-ment automatically controlled by ther-mostat is installed in the cabinet.

For convenience of maintenance activi-ties, LED lighting is provided for in the cabinet.

SECONDARY CONTROL WIRING CIRCUIT CABINET

DESIGN

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The cable junction cabinet houses zero-phase sequence current transformers, overvoltage arresters, base insulators with in-built condenser, heating element and, optionally, draw-out truck-based voltage transformers. The cabinet back wall is demountable one consisting of two boards: upper and lower.

On the front side of the cabinet there is the arc-resistant door closed with multi-ple-point lock.

The pressure of excessive gases gener-ated at short-circuit through an arc, is relived through the valve located in the metal-clad switchgear «Volga» upper part.

The cabinet is designed for connection of three three-core cables with cross-section up to 240 mm or six one-core cables with cross-section up to 630 mm.

Mechanical blocking is provided for preventing door opening until earthing switch is set into «ON» position.

CABLE JUNCTION CABINET

DESIGN

20 ELTECHNIKA JSC


The bus-bar system is located in the cabi-net. To reduce the electric-field strength, the buses are made without sharp edges, having rounded 5 mm diameter facets.

Bus-bar for currents up to 1600 A are performed as a copper strip with cross-section 10х80 mm, for currents up to 2500 A – as two strips, for currents up to 3150 A – as three strips.

The fastenings package, installation method and bolted-on connections' tightening torque ensure contact pres-sure continuity at the bus entire heating range in working and emergency modes.

Excessive pressure generated at arcing short-circuits is relieved through the valve located in the cabinet upper part.

BUS-BUR CABINET

DESIGN

21ELTECHNIKA JSC


A system of mechanical locks fully complying with all safety requirements IEC.

Locks depending on their effect type, can be ei-ther mechanical or electrical (employing locks and control circuits).

LIST OF LOCKS AND THEIR CHARACTERISTICS

Lock's designation Type Locking object

1 Locking the relocation of the cart, which is in the working position at circuit breaker turned on.

Mechanical Draw-out element

2 Locking the relocation of the cart, which is in the control position at circuit breaker turned on.

Mechanical

3 Locking the relocation of the cart which is in the control position at the draw-out element open module door

Mechanical

4 Locking the relocation of the cart, which is in the control position when earthing switch is turned on.

Mechanical

5 Locking the relocation of the cart at the absence of control voltage on connection terminals of electromagnetic locking *

Electrical

6 Locking circuit breaker operation when the draw-out element is in the intermediate position

Mechanical, electrical


7 Locking earthing switch activation when the draw-out element is not in control position.

Mechanical Earthing switch

8 Locking earthing switch cutoff when cable junctions module door is open ** Mechanical

9 Locking earthing switch operation the at the absence of control voltage on connection terminals of electromagnetic locking *

Electrical

10 Locking earthing switch operation when voltage on the cable is available (for incoming cubicles)

Electrical

11 Locking opening door of the draw-out element when the draw-out element is not in the control position

Mechanical The draw-out element module door

12 Locking opening cable junctions module door when the earthing connector is cut-off **

Mechanical Cable junctions module door

* Option: When control current is not available, the lock is relieved with magnetic key

** When necessary, locking can be relieved with releasing device.

LOCKS

DESIGN

22 ELTECHNIKA JSC


Metal-clad switchgear «Volga» can be com-plete with different vacuum circuit breakers available at the market: VF12, SION, EVOLIS, ISM15.

As far as value for money is concerned, vacuum circuit breaker VF12 is deemed to be optimal.

VF12 vacuum circuit breaker's specific design feature is pouring vacuum arc-quenching chamber with epoxide compound, which en-hances switch poles electrical strength reli-ably protecting arc-quenching chambers from environmental effects: impacts, dust and moisture.

The breaker is equipped with spring drive with gear motor combining possibility of manual operation.

THE CIRCUIT BREAKERS BASIC TYPES

EQUIPMENT

VACUUM CIRCUIT BREAKERS

SION

ISM15_LD

EVOLIS

ISM15_SHELL

VF12 (ELTECHNIKA JSC)SC)

23ELTECHNIKA JSC


Vacuum circuit breaker VF12 is equipped with mechanical energy-storage spring drive. The drive can be charged either manually or with gear motor.

Vacuum circuit breaker VF12 can be switched on and off manually with buttons located on the drive front side or distantly with closing and trip-ping electromagnets.

VACUUM CIRCUIT BREAKER VF12 TECHNICAL DATA

Parameter name Value

Nominal voltage, kV 10

Maximum operating voltage, kV 12

Rated current, A 630; 800; 1250; 1600; 2000; 2500; 3150

Rated breaking current, кА 20; 25; 31,5

Standardized parameters of through short circuit currents:

– short time electrodynamic current, kA 51; 63; 81

– short time thermal current, kA 20; 25; 31,5

– short circuit current's flow time, s 3

Control circuits and auxiliary circuit elements rated voltage, V: ~100, =110, ~220, =220

Control solenoid circuits rated current, A not more than 5

Test voltages of the main circuit, kV:

– one-minute with frequency 50 Hz 42

– lightning impulse 1,2/50 mcs 75

Operations flow proper time, s not more:

– switching on 0,055

– switching off 0,035

Time difference in contact opening at switching on, s, not more than 0,002

Power spring charging time in automatic mode, s, not more than 10

Mechanical durability(cycles number В–tп–О), not less:

– for breakers 630; 800; 1000; 1250; 1600 А 30000

– for breakers 2000; 2500; 3150 А 10000

Commutation life (cycles number В–tп–О),at normal current, not less:

– for breakers 630; 800; 1000; 1250; 1600 А 30000

– for breakers 2000; 2500; 3150 А 10000

Commutation life (cycle numbers В–tп–О), at tripping current, not less:

50


Weight, kg not more 260

EQUIPMENT

VACUUM CIRCUIT BREAKERS

24 ELTECHNIKA JSC


The earthing switch movable contacts can be in two mutually transverse positions: On or Off. The movable contacts stable state in the positions indicated is ensured by two springs. The same springs provide the necessary effort, speed and the earthing switching simultane-ity, independent of the torque and control shaft rotation speed.

The earthing switch is complete with manual operation drive.

Optionally, the earthing switch can be com-plete with motorized drive allowing distantly transferring the earthing switch into ON/OFF position.

EARTHING SWITCH TECHNICAL DATA

Parameter designation Value

Rated voltage, kV 10

Maximal operating voltage, kV 12

Short time thermal current, kA 31,5

Short-time thermal current flow duration, s: 1

Short time electrodynamic current, kA 81

Test voltages of the insulation between the poles, kV:

– one-minute with frequency 50 Hz 42

– lightning impulse 1.2/50 mcs 75

Electrical impedance of the pole's main current-carrying circuit, mcohm, not more than 300

Mechanical durability (cycles number В–О to heavy overhaul) 1000

Pole distance, mm 150; 210; 275


Weight, kg not more than 20

EARTHING SWITCH

EQUIPMENT

25ELTECHNIKA JSC


Current transformers of different design can be installed in Metal-clad switchgear «Volga» 6 (10) kV.

To enhance reliability, maintenance safety and operational costs reduction, long connection terminals transformers are used. Such current transformers the secondary circuits do not have screw connections in high voltage cabinet.

CURRENT MEASURING TRANSFORMERS TECHNICAL DATA

Parameter designation Value

Secondary winding number 2–5

Measuring secondary winding accuracy class 0,2S; 0,2; 0,5S; 0,5

Protection secondary winding accuracy class 5Р; 10Р

CURRENT MEASURING TRANSFORMERS

EQUIPMENT

26 ELTECHNIKA JSC


Any relay protection devices can be installed in metal-clad switch-gear «Volga». The use of microprocessor relay protection blocks

and automatic equipment allows to realize following:– all necessary types of junctions protection 6(10) kV;– measured values indication on the in-built display;– data storage;– emergency parameters registering and storage;– local network protection setting and settings change;– inclusion of relay protection blocks into automatic process con-

trol system;– distant operation of switching unit via local networks;– relay protection blocks diagnostics followed by malfunction

alarm;– oscillographic testing;– data presentation on the in-built LCD.

For widely used relay protection devices series – SEPAM, SPAC, SIR-IUS and BE2502 secondary control wiring circuits' typical circuits have been developed.

The Switchgear based on metal-clad switchgear «Volga» can be complete with valve and fiber-optic arc protection systems.

RELAY PROTECTION AND CONTROLS DEVICES

VALVE ARC PROTECTION

FIBER-OPTIC ARC PROTECTION

RELAY PROTECTION AND CONTROLS. ARC PROTECTION

Fiber-optic arc protection is provided for by generic solution of metal-clad switchgear «Volga» cubicle design. The fiber-optic arc protection tripping time does not exceed 8 ms at arc minimal cur-rent 160 A.

Arc protection can operate according to algorithm ensuring both, selective and non-selective tripping when electric arc emerges.

Valve arc protection responds to the arc effects – gases pressure value sufficient for tripping. Time for the valve tripping is from 5 to 70 ms.

Metal-clad switchgear «Volga» is complete with limit switches to ensure the valve arc protection.

SEPAM

SIRIUS SPAC

BE2502

EQUIPMENT

27ELTECHNIKA JSC


Virtually any electric meters types can be installed in metal-clad switchgear «Volga» for electrical energy fiscal metering and technical management.

These series meters possess the following capabilities:– metering and accounting of reactive, active and gross output and energy;– possibility of incorporation into to automatic process control system;– in-built calendar and clock;– data storage (nonvolatile memory);– data presentation on the in-built LCD;– power consumption increase control.

ELECTRIC METERS

TELEMECHANICS SYSTEM

ELECTRIC METERS. TELEMECHANICS SYSTEM

RPA terminal «Eltechnika KP» remote control system

Metal-clad switchgear «Volga» can be equipped with lower level remote-control system.

«Eltechnika KP» which can be switched to any upper level telemechanics sys-tem.

«Eltechnika KP» telemechanics system allows:– to measure and transfer to the network upper level the values of: present

and contingency current, voltage, capacitance, active and reactive energy.– to transfer to the upper level data on switching units position;– to distantly operate vacuum circuit breakers;– to perform distant relay protection blocks operation.

EQUIPMENT

28 ELTECHNIKA JSC


OPERATION

МОНТАЖ ЯЧЕЕК

INSTALLATION

Metal-clad switchgear «Volga» has been developed for universal use and possibility of one- and two-side access.

Metal-clad switchgear «Volga» one row installation

(overhead view, W – cubicles' width). One-side access.

A corridor at least 1350 mm wide is needed for the cubicles maintenance.

Metal-clad switchgear «Volga» two-row installation (overhead view). One-side access.

A corridor at least 1600 mm wide is needed for the cubicles maintenance.

Metal-clad switchgear «Volga» two-row installation (overhead view). Two-side access.

A front-side corridor at least 1600 mm wide is needed for the cubicles maintenance, and

600 mm wide – for rear side maintenance.

29ELTECHNIKA JSC


OPERATION

INSTALLATION DIMENSIONS

ELEVATIONAL DRAWINGCABLE ENTRANCE POINT AND METAL-CLAD SWITCHGEAR

«VOLGA» ATTACHMENT FLOOR EMBEDDED ELEMENTS

Main circuits rated current, А

Size B, mm

Size L, mm

Size L1, mm

≤ 1250 650 580 135

1600; 2000 800 730 210

2500; 3150 1000 930 240

30 ELTECHNIKA JSC


ELTECHNIKA JSC guarantees metal-clad switchgear «Volga»

service life is 3 years from the date of the equipment's commissioning, but not more than 3.5 years from the moment of its shipment to consumer.

WARRANTY LIABILITY

MAINTENANCE

SERVICE AND SUPPORT

According to the warranty, the manufacturer of Metal-clad switchgear «Volga» is to perform the following works:– replacement and repair of equipment supplied to entities;– customer personnel technical support;– consulting services;– resource materials development;

On a contractual basis and within framework of service follow-up the manufacturer of Metal-clad switchgear «Volga» can provide the following services:– contract supervision installation and adjustment of the supplied equipment;– the customer personnel training;– equipment diagnostics, repair and adjustment during post-warranty period.

Metal-clad switchgear «Volga» does not require any special maintenance, except for periodical examination and dust removal from conductive parts (when necessary).

Metal-clad switchgear «Volga» bus-bar system does not require service.

OPERATION

MAINTENANCE. SERVICE. CERTIFICATES. WARRANTIES

Metal-clad switchgear «Volga» Catalog ELTECHNIKA JSC

The manufacturer reserves the right to introduce technical modifications to working parameters, boundary and installa-tion dimensions indicated in the catalog.

ELTECHNIKA JSC

19, Gruzovoy proyezd, Saint-Petersburg, 192288

Tel.; (812) 329-97-97Fax: (812) 329-97-92

E-mail: [email protected]

Commercial department:

Tel.: (812) 329-33-97E-mail: [email protected]

Service and production quality group:

Tel.: (812) 329-25-51Fax: (812) 772-58-86E-mail: [email protected]

catalogue volga 2015 en - elteh.rušаталог на КРУ... · protection level as per state...

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