DOC. SIE10110 Rev. 6 Page 31 of33
To perform the test, the T2000 output is connected to the overhead line to be tested, that is put out
of service. The purpose of the SU3000 optional device is to protect the operator, during the
connection and during the operation, against possible high voltage spikes.
To this purpose, SU3000 incorporates:
- A voltage suppressor, rated 1000 V AC and 15 kVA;
- An ON/OFF switch, rated 375 A steady, 2000 A peak, 1500 V AC.
- These devices are incorporated in a metal container with door.
-The switch is operated by a safety handle while the door is closed.
- Weight: 20 kg.
- Dimensions: 55 x 45 x 25 cm.
3.12.10 FT/1000 current filter, code PII16093
The filter unit type FT/1000 is an option to be used with the T/X000 relay test sets. It is connected
in series to the relay under test, and guarantees a sinusoidal waveform also when testing current
relays with reverse time characteristics, or with heavily saturating burdens, that tend to distort the
current waveform.
- Current input ranges: 10 - 40 - 100 - 250 A, on terminal bushings.
- Maximum power yield: 800 VA.
- Filter burden: less than 200 VA at 200 A. The burden is proportional to the range (50 VA at 50 A).
- Service: 50 A continuous service; 200 A for 30 s.
- Selection of the mains frequency: 50 or 60 Hz, by switch.
- Overall dimensions: 220 x 250 x 310 mm.
- Weight: 15 kg.
The following is the FT1000 front panel.
3.12.11 Earth resistance and resistivity test kit, code PII19102
The test of earth resistance and resistivity is included in T2000 as a standard feature. The option is
referred to the kit of connection cables and auxiliary spikes that allows executing these tests; it is
optional because not all of our customers perform the tests.
The kit is made of the following devices.
A) Current generation.
- One cable for the connection of T2000 to the auxiliary spike, 100 m long, 2.5 sq. mm cross
section, wound on a wheel. Terminated with a safety banana connector for the connection to the
auxiliary spike, and with a safety socket for the connection to T2000.
- Three cables for the following connections: of T2000 to the above wheel, of the two earth spikes
between them, and of the measurement input to the measurement wheel; 4 m long, 2.5 sq. mm
cross section. Terminated on both sides with a safety banana connector.
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