Power VT
Power VT power voltage transformer for gas-insulated switchgear, inductive VT up to 170 kV with built-in on-site high-voltage testing capability per IEC 62271-203
Power VT
- Standard VT and high-voltage test source in one: improved winding design turns the substation's own voltage transformer into the HV test equipment for the GIS primary system
- All standard VT values retained — type-tested to IEC 61869-1 and IEC 60044-2, voltage factor 1.9 for 8 h, measuring frequency 50/60 Hz
- On-site high-voltage testing per IEC standards and proposed test levels (IEC 62271-203 table 107) — test preparation within minutes, re-testing possible at any time over the whole life cycle
- No huge temporary HV test facilities: no large test container, no extra space, low investment — small, lightweight test equipment transportable as carry-on luggage, powered from a standard socket (e.g. 3-phase, 400 V, 20 A)
- Proven in the field: working in GIS substations for more than 8 years, approx. 200 units in operation in 32 countries, no incidents — also available for blue GIS® (SF6-free) substations with no SF6-gas handling at site for test preparation
Voltage measurement for control, protection and metering in high-voltage substations (air- or gas-insulated)On-site high-voltage testing of the GIS primary system — after GIS extension, reassembly or extensive service activities, quality and performance testsRe-testing over the whole switchgear life cycle without external high-voltage test facilitiesBlue GIS® (SF6-free) substations
SIMULATED · ASK-AN-EXPERT PILOT DEMO
Ask an expert about Power VT
15 minutes with the right switchgear specialist — question in, booked call out. No email archaeology.
Checking availability…
Power VT covers up to 170 kV of the gas-insulated switchgear range (≤ 550 kV across the category, √ scale).
Specifications
Main
| Product family | Power VT — power voltage transformer for gas-insulated switchgear |
| Type | Inductive voltage transformer with improved winding design, usable as on-site high-voltage test equipment for the GIS primary system |
| Type tests | Type-tested according to IEC 61869-1 and IEC 60044-2 |
| Availability | Also available for blue GIS® substations (SF6-free) — no SF6-gas handling at site needed for test preparation |
Electrical (headline values)
| Rated voltage | up to 170 kV |
| Voltage factor | 1.9 for 8 h |
| Accuracy | Class 0.2 at 100 VA; class 0.5 at 200 VA |
| Measuring frequency | 50 / 60 Hz |
High-voltage testing function
| Test basis | High-voltage testing according to IEC standards and proposed test levels on site (IEC 62271-203 table 107) |
| Test frequency | 100 Hz ± 20 % |
| Test section | up to 2 bays |
| Test equipment power supply | Standard socket (e.g. 3-phase, 400 V, 20 A); control & feeding unit per brochure test diagram: CPC 100, CP TR1, CP CR1, 90 Hz – 120 Hz |
Documents & downloads
Brochure Empower your GIS with the Power VT — product brochure 2021 (standards, testing function, benefits, placement examples)
Ordered designations
Representative orderable type designations of this family — searchable via the catalog search.
Related products
8DN8 Gas-insulated switchgear 8DN8, 145–170 kV, up to 63 kA, SF6-insulated bay with stored-energy spring drive
Rated voltage up to 145 / 170 kV · Breaking current up to 40 / 63 kA, normal current up to 3150 / 4000 A · SF6-insulated GIS, indoor/outdoor, 800–1000 mm bay width Datasheet · Dimensions ↓
8DN9 2 Gas-insulated switchgear 8DN9-2, up to 245 kV, 50 kA, 4000 A, SF6, single-phase encapsulated, indoor
Up to 245 kV (300 kV offshore) · 50 kA / 4,000 A · Single-phase encapsulated SF6 GIS, 1,500 mm bay Datasheet · Dimensions ↓
8DN9