Medium Voltage Distribution

DNF7

Air Insulated Switchgear 36 - 40.5 kV

PARS TABLEAU

[ ] DNF7 Air Insulated Switchgear

DNF 7Air Insulated Switchgear36-40.5 kV

CUSTOMER BENEFITS

• Total safety for operators including full internal arc tested• Our AIS solution can be replaced by GIS in high ratings.• Immune to environmental influences• Ideal to convey high current load

Wherever 36 or 40.5 kV power must be distributed and used

with maximum availability and reliability, Pars Tableau has the

time-proven equipment that best meets your needs.

If you are looking for a convenient product with proven

technology based on decades of experience designing and

manufacturing substation switchgear, we have the answer

in our DNF7 new generation for 40 kV substations. This

innovative indoor air-insulated switchgear, with ratings up

to 40 KA, is the first in its class catering to the needs of all

process industries, distribution networks and any other

application in electrical networks.

The Fully Metal Clad Switchgear Robust For All Applications

Based on its four distinct compartment design (circuit breaker,

cables, busbar and low voltage equipment) and the use of

earthed automatic shutters, DNF7 is highly reliable switchgear.

The cubicle is of the true metal clad category. It meets the

highest level of service continuity (LSC2B). Both busbar and

cable compartments service continuity are ensured when

normal maintenance is carried out in the circuit breaker

compartment. As safety is a key point in this design, a provision

for comprehensive shutter padlocking ensures total operator

safety during maintenance work.

DNF7 is equipped with either SF6 , or vacuum circuit breaker.

Quality Standards

DNF7 has been designed and fully tested according to the

latest IEC standards (IEC 62271-200/-100 and IEC 62271-1).

All type tests have been performed in international recognized

independent laboratories.

DNF7 is manufactured in our ISO 9001-2000 and HSE certified

factories.

Quality

2

PARS TABLEAU

[ ] DNF7 Air Insulated Switchgear

Project Name End User Client

MIS Masjed SoleymanPetroleum Engineering and Development Company (PEDEC)

Tabdil energy paya.CO

Azadegan oil fieldPetroleum Engineering and Development Company (PEDEC)

Pars CO.

Fajr Petrochemical 132/33 kV Fajr Petrochemical SSCO CO.

Shiraz Ammonia and UreaPetrochemical Industries Design Equipment and parts Manufacturing Company, (PIDEMCO)

Hirbodan CO.

South Pars Gas Field Development Phase 13 Pars Oil and Gas Company (POGC) Parsian CO.

West Karon Light &Heavy Crude Oil Pump Station &Power Transmission Lime Oil Transportation

Petroleum Engineering and Development Company (PEDEC)

Rampco Group

Omidiyeh 132/33KV Power Line 132kv Existing Upper Substation

Petroleum Engineering and Development Company (PEDEC)

Substation Company

South Pars Gas Field Development Phases 9 & 10 Pars Oil and Gas Company (POGC) Oil Industries Engineering and Construction Company (OIEC)

Oil ,Gas and Petrochemical

References List

Project Name Client Consolation

Sabzevar steel complex MMTE Tara tarh Co.

Andimeshk Khuzestan R.E.C Moshanir Co.

Natanz steel complex Faraniroo Co. Ariya Co.

Abarkooh sarmad steel complex Faraniroo Co. Ghodsniroo Co.

Imam khomeini airport Imam khomeini airport Tabiran Co.

Sirjan steel complex MMTE Kani mes Co.

Bardsir steel complex Iranian sirjan complex Moniran Co.

Khuzestan complex Khuzestan complex Darya pala Co.

Industry

Project Name End User Client

IRAQ Electricity United Nation Alstom of Turkey

Turkmenistan electricity network renovation Turkmenistan electricity ministry Sunir Co.

Dubai Mankhool 132/33kv S/S Dubai Electricity and Water Authority (DEWA)Dubai Electricity and Water Authority (DEWA)

36 kV SUB. Ports and shipping organization Dariyan CO. Ghods niroo Co.

Besat & mahshahr sub’s Petrochemical free zone Co. Moshanir Co.

Lishtar Khuzestan. R.E.C Moshanir Co.

Andika Khuzestan. R.E.C Ghods niroo Co.

132/33 kV substation Khuzestan water & power Co. Sapta Co.

Utility / Power Generation

* for the complete Reference List , please refer to our web site.

3

PARS TABLEAU

Pars Tableau’s DNF7 cubicle has been

designed with operator safety as the number one

priority.

Internal ARC Classification (IAC)

DNF7 has been sucessfully tested in an international

recognized laboratory according to IEC 62271- 200

standards with the following classification :

IAC AFLR 31.5 KA / 1s in all compartments.

Ingress Protection

The enclosure of DNF7 is designed with an ingress

protection degree of IP4X.

Clear, Visible Switching Devices

The mechanism cover shows a visual display of circuit

breaker ON/OFF condit ion, spring charged/

discharged and earthing switch ON/OFF.

DNF7 has inspection windows for both breakers and

cable compartments. This allows the positions of the

withdrawable unit, earthing switch and the situation of

the cable connection to be easily observed.

Operator Safety First

[ ] DNF7 Air Insulated Switchgear

Complete Set Of Interlocks

All necessary positive interlocks are installed according

to IEC standards and are designed to prevent:

A closed circuit breaker being inserted into or

withdrawn from the service position

A circuit breaker being closed unless in the service or

test position

Closing of the earthing switch if the circuit breaker is in the

service position

Disengagement of secondary plug from socket when the

circuit breaker is in service position.

Necessary interlocks are also provided at the rear cable

cover, which can only be opened when the breaker is tripped

and brought to test position with the earthing switch closed.

4

PARS TABLEAU

Characteristics of The Components

Vacuum, SF6 circuit breaker

Sf6 & Vacuum Circuit Breakers from different

suppliers could be used in this compartment based on

customer request.

Busbars

Round, bare or sheated (on request), copper or

aluminum bars.

Rated current : up to 3150 A.

Connection of MV cables

The following types of connection are possible:

dry type cables up to 4 x 630 mm.

impregnated paper insulated cables.2up to 300 mm single core and three core.

Cable earthing switch (ES)

This switch is dependently controlled or on request,

can be of the type which operates rapidly and

independently of the operator. permissible short time

current, 1 s or 3 s: up to 40 KA rms.

This cable earthing switch has a rated making

capacity. Capacitive divider insulators located in the

cable compartment supply neon indicators located in

the immediate vicinity of the earthing switch control.

Current Transformers (Ct’s)

these are located in the cable compartment and are :

of the conventional type with one or two secondary

windings.

functional of the bushing type very Low Voltage on

insulated primary conductors.

Voltage transformers (Vt’s)

These devices can be used for application to cables

or to busbars at a each cubicle housed in a case (at

the rear or top)

either of conventional type for fixed mounting

without fuses.

or functional and withdrawable with MV fuses

incorporated.

LV comparement

this is integrated into but entirely distinct from the

cubicle frame. it houses all the standard Low Voltage

monitoring. control and indication devices comprising

mainly.

the protective equipment and auxiliary apparatus

on cards mounted in a frame (48 cm rack).

the terminals for the customer’s multiconductor

cables, the cubicle tappings from common wires

and the cubicle wiring.

integral and accessible LV cable routes.

[ ] DNF7 Air Insulated Switchgear

Technical CharacteristicsRated voltage kV 36/40.5

Rated frequency Hz 50/60

Rated insulation level• Rated power frequency withstand voltage/1min.• Lightning impulse withstand voltage (peak value)

kVrmskVp

70/80 170/180

Rated current of busbar A 1250/1600/2000/2500/3150

Rated current of T-off bar A 630/1250/1600/2000/2500/3150

Rated short time withstand current (3s) kA 25/31.5/40

Internal Arc Classification A FLR kA 31.5 / 1s

Rated peak withstand current (peak value) kA 63/82/100

Ingress Protection Degree kA IP 4X *

Width mm 1300

Height mm 2250 - 2350**

Depth mm 2300 - 2750**

* For higher IP please contact us.** For 40.5 kV.

5

PARS TABLEAU

[ ] DNF7 Air Insulated Switchgear

Presentation of the functional units

Legend1 Gas exhaust valves

2 Busbars3 Gas exhaust duct (internal arc optional feature)

4 Busbar bypasses5 Earthing switch

6 Voltage transformer compartment7 Medium voltage cables8 Cable fastening bottom plates

9 Current transformers

10 FP Ortholuor circuit breaker11 Access door to circuit breaker compartment

12 Low voltage box13 Low voltage wiring sheath

14 Handle (internal arc only optional feature)15 Mounting of the lock cup optional

feature + cable fastening bottom

plates

"Coupling" with voltage transformer bars

"Incoming" - "Outgoing" feeder with voltage transformer cables

6

PARS TABLEAU

Legend

"Bus-riser" functional unit

[ ] DNF7 Air Insulated Switchgear

1 Gas exhaust duct

2 Upper busbar

3 Busbar bypasses

4 Lower busbar

5 Current transformer

6 Low voltage box

7 Low voltage wiring sheath

7

**3000

*800

1800

* Minimum rear passage with voltage transformer cable = 1500 mm

** Minimum height under celing with voltage transformer bars = 3500 mm

25

5

55

12

00

1300

35

115

A

1100

150

C

TYPE (DNF7) A (mm) B (mm) C(mm)

36 kV - 630 / 2000 A 2300 365 500

36 kV - 630 / 2500 A 2400 365 500

36 kV - 630 / 3150 A 2650 465 750

36 UP To 40.5 kV - 630 / 3150 A 2750 565 750

Screw downpoints

(screw 12)

PARS TABLEAU

WWW.PARSTABLEAU.COM

info@parstableau.com

Des

ign

by:H

adi T

ahm

ase

bi

+

989122410032

Cat. N

o. 01.2

015