EFACEC AMT

^{^{^{^{^{^{^{^{^®}}}}}}}}

SF₆ pole mounted switch remote controlled

Up to 24 kV

IATS^® Switch disconnectors are SF₆ technology outdoor apparatus for medium voltage network remote exploration. All active parts are protected inside a stainless steel tank full with SF₆ and sealed for life.

IATS^® was designed to integrate a Distribution Automation system in order to achieve an improvement in supply reliability of overhead networks. From a control central faults can be cleared and isolated and the network can reconfigured remotely, reducing outages and improving the service quality and reducing global exploitation costs.

GENERAL
CHARACTERISTICS

IATS SYSTEM
ARCHITECTURE

TECHNICAL DATA

OPERATION

COMPOSITION

GENERAL CHARACTERISTICS

high reliability
Compact and lightweight
It is well adapted to many type of poles and conductor configurations
Ideal for the most adverse environments
Environment friend
Easy to install
Vary easy to operate
Remote controlled
Simple and safe (mechanical and electrical) interlocks
Increased electrical and mechanical life
Maintenance free
Several equipment solutions are available (optional)

IATS SYSTEM ARCHITECTURE

The system combines the following equipments :

A three-phase outdoor gas insulted SF₆ switch
An electrical operating mechanism integrated in the body switch
A manual operating mechanism
A remote electronic controller cabinet, containing a URR, batteries, charging unit and radio communication system

Central control:

SCADA
Microprocessor
Control unit
Computers
Radio
Modem
Antenna

Control cabinet:

Local pushbuttons
Local / remote
Battery e battery charger
Heat resistance
Microprocessor
Remote terminal unit
Signal inputs / outputs
Radio
Modem
Antenna
Fault detection relay

SF₆ load break switch:

Motor
Current transformers
SF₆ low pressure signal

Mechanical actuation:

Manual operation lever
Manual interlocks

TECHNICAL DATA

ELECTRICAL DATA
Rated voltage	kV	12	17.5	24	36
Insulation level: - lightning impulse (1,2 / 50 µs) - power frequency (50 Hz - 1 min.)	kV peak kV r.m.s.	75 28	95 38	125 50	170 70
Rated current	A	400 or 630	400 or 630	400 or 630	400 or 630
Rated short-time current	kA r.m.s.	12.5/16 (3 s)	12.5/16 (3 s)	12.5/16 (3 s)	12.5/16 (3 s)
Short circuit making current	kA peak	31.5 / 40	31.5 / 40	31.5 / 40	31.5 / 40
Mainly active load	A	630	630	630	630
Closed loop	A	630	630	630	630
Cables charging	A	25	25	25	25
AMBIENT TEMPERATURE	ºC	-25...+40 (other, under request)
Mechanical endurance	5.000 operations
Protection degree (IEC 60529 e EN 50102)	IP54 (mechanism compartments) IP67 (MT compartments)
Standards	IEC 60625, HN 64 S46

OPERATION

Control Cabinet

The control and communication unit is a microprocessor type unit designed for outdoor pole mounting. The IP 65 fiber glass reinforced control cabinet is mounted bellow the IATS at a distanced determined by the user.

In a addition to the electronic remote control unit it is possible to incorporate a fault protection module with a fault detection relay suitable for phase fault and earth fault protection.

The IATS is remotely controlled by a central control.

Switch operation

Manual and remote operations are available. Interlock between manual and electrical operation is provided. Manual operation is suitable up to 25 meters distance to the switch. Padlocks for manual handle can be provided optionally.

Personal safety

The possibility of faults on IATS pole switch is much lesser than in air insulated systems. The cubicle was designed and tested to resist structurally against the internal arc overpressure and hot gases. It is fitted with an internal arc overpressure relief in the top of the gas tank discharging upwards.

The switch isolation distances, in the open position, guarantee the disconnecting function.

COMPOSITION

Incoming-outgoing