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STS 4000 Multifunction substation test set

STS 4000 is a multifunction substation maintenance & commissioning test system for current, voltage and power transformers, designed to perform primary tests requested in substations commissioning. It allows to perform accurate tests on CTs, VTs, PTs and ground grid.

Manufactory: ISA - ALTANOVA GROUP (Italy).

Description

The STS family includes 4 models: STS 5000, STS 4000, STS 3000 light and TDX 5000. STS 4000 is not equipped with: AC and DC high current outputs. STS 3000 light is not equipped with: AC and DC high current outputs, AC and DC high and low voltage outputs, and current and voltage meters. All models can be connected to the Tan Delta module TD 5000; STS 5000 and STS 4000 can be connected to the very high current module BUX 5000, BUX 3000 and BUX 2000. STS 4000 includes four output generators:
  • low AC current;
  • low DC current;
  • high AC voltage;
  • low AC voltage.
In the local control mode, the selected output is adjustable and metered on the large, graphic LCD display. With the control knob and the LCD display, it is possible to enter the MENU mode, that allows to set many functions, that make STS 4000 a very powerful testing device, with manual and automatic testing capabilities, and with the possibility to transfer test results to a PC via ETHERNET or Pen Drive. The TDMS software, which comes with the test set, allows to download, display and analyse test results obtained in local mode. Remote maintenance and diagnostic of the instrument is available via Ethernet. TDMS operates with all Windows® versions.
The ease of operation has been the first goal of STS 4000. This is why the LCD display is so large and the dialogue in MENU mode is made easy. Connection diagrams are available according with the test window. STS 4000 includes three measurement inputs:
  • DC voltage (10 V DC);
  • AC voltage: High range (300 V AC), Low range (3 V AC);
  • Current (10 A AC or DC).
All these inputs are independent among them and allow the measurement of CT or VT outputs or of another source. In addition, a digital input (up to 300 V) is available: it can measure the timing of a wet or dry contact. The instrument is housed in a transportable aluminium box, which is provided with removable cover and handles for ease of transportation. A transport trolley can also be supplied upon request.
Features
  • Fully automatic
  • Primary injection testing capabilities: up to 7000 with the optional module BUX
  • Variable output frequency: 15÷500 Hz
  • Power dissipation factor test with the optional module TD 5000 ( voltage up to 12 kV)
  • 2000 V AC high-pot test
  • Local control by large graphic display
  • Tan Delta test on rotative machines (generators and motors)
  • PADS - Power Apparatus Diagnostic Software for automatic testing, assessment and report
  • IEC 61850-9-2 communication protocol
  • USB interface and Ethernet interface for PC connection
  • Compact and lightweight
  • Patented technology for capacitance and Tan Delta measurement

Generator Output

Low AC current output

Maximum output current

6 / 3 А

Maximum output voltage

70 / 140 V

Maximum output power

360 VA

Connection

two safety 4 mm banana sockets

Frequency range

15 - 500 Hz

Low DC current output

Maximum output current

6 A DC

Maximum output voltage

65 V DC

Maximum output power

360 W

Connection

two safety 4 mm banana sockets

High AC Voltage output

MAX. VOLTAGE OUTPUT V     

CURRENT OUTPUT A     

OUTPUT POWER VA     

MAX. TEST DURATION S     

2000

1,25

2500

60

1

2000

130

0,5

1000

> 2 hours

1000

2,5

2500

60

2

2000

130

1

1000

> 2 hours

500

5

2500

60

4

2000

130

2

1000

> 2 hours

Measurement accuracy

< 0.05% of the reading, < 0.05% of the range

Phase error

< 0,1°

Output connection

two HV safety sockets

Output frequency

15 – 500 Hz

Current measurement of the HV output

CURRENT RANGE A

ACCURACY

PHASE ERROR

5

< 0.2% reading < 0.05% range

< 0,1°

0,5

< 0.05% reading < 0.05% range

< 0,1°

0,05

< 0.1% reading < 0.1% range

< 0,2°

Low AC Voltage output

Voltage range

140 / 70 V AC

Output power

420 VA

Frequency range

15 - 500 Hz

Connection

two safety 4 mm banana sockets

Measuring Inputs

Current and Voltage

INPUT

RANGE

ACCURACY

AC CURRENT

1 / 10 А

± (0.05 % reading + 0.05 % range)

DC CURRENT

1 / 10 А

± (0.03 % reading + 0.08 % range)

HIGH AC VOLTAGE

300 mV / 3 V

± (0.15 % reading + 0.05 % range)

30 / 300 V

± (0.05 % reading + 0.05 % range)

LOW AC VOLTAGE

30 mV

± (0.1 % reading + 0.25 % range)

300 mV

± (0.08 % reading + 0.08 % range)

3 V

± (0.03 % reading + 0.08 % range)

DC VOLTAGE

10 / 100 mV

± (0.05 % reading + 0.15 % range)

1 / 10 V

± (0.03 % reading + 0.08 % range)

Binary Input - Timer

Voltage thresholds

5 V, 24 V, 48 V or > 80 V

Timer resolution

1 ms

Phase Angle

MEASUREMENT

RANGE

RESOLUTION

ACCURACY

PHASE

0 – 360°

0.01°

< 0.1°

Resistance measurement

SOURCE

RANGE

ACCURACY

LOW DC CURRENT 6 А

100 mΩ

< 0.3 %

1 Ω

< 0.3 %

10 Ω

< 0.2 %

DC V METER

100 Ω

< 0.6 %

1 kΩ

< 0.5 %

20 kΩ

< 0.5 %

Other Characteristics

Display

TFT LCD- display, 640 x 480, 132 x 99 mm, с Backlight

Communication interfaces

ETHERNET for the PC connection
USB port for the USB key

Interfaces to external modules:

Commands to TD 5000 and STCS;

Alarms to a flashing light;

Remote start input.

Mains supply

100-230 V ± 15%; 48-62 Hz

Dimensions

450 (W) x 400 (H) x 230 (D) mm

Weight

22 kg

Standard accessories:

  • STS 4000
  • Testing cables
  • Foldable trolley
  • Transport case
  • TDMS software
  • User manual

Optional accessories:

  • RCTD - Compensating Reactor
  • CAP - CAL Calibrator Module
  • Stoil Cell for the HV Test of the Dielectric Oil
  • Digital Thermo Hygrometer
  • BUX 2000 - External Advanced Booster up to 2000 A supplied with transport case
  • BUX 3000 - External Advanced Booster up to 3000 A supplied with transport case
  • BUX 5000 - External Advanced Booster up to 5000 A supplied with transport case
  • STCS Circuit switch module
  • STCS PLUS switch module
  • 20A DC STCS Booster
  • Step & Touch testing kit
  • Line Impedance testing kit
  • Earth Resistance and Soil Resistivity Kit
  • STDE demagnetizer module
  • PLCK - Polarity checker
  • PADS software

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