Product Overview
The PG II from HORSTMANN is a two-pole phase comparator for medium-voltage networks, designed to detect phase equality between two live conductors. The PG II consists of two components: Part A with an operating rod with an integrated contact electrode and an indicator unit, and Part B as a separate operating rod with a contact electrode. The insulating rod can be detached from the indicator unit, and the contact electrodes are connected via a coiled, high-discharge resistant cable.
Function and Construction
- Two-pole phase comparator for determining phase identity between two live conductors.
- Part A: operating rod with integrated contact electrode and display unit.
- Part B: separate operating rod with contact electrode.
- Connection between A and B via a 1 m coiled, high-voltage resistant cable.
The PG II displays the result via optical indication (three red LEDs). The apparatus is specified for a nominal frequency of 50 Hz with an option for 60 Hz, and the maximum permissible operating time under voltage is 60 s. The unit is classified as operating class B (indicates phase shift display in the range of 60°–300°).
Several versions are available depending on the rated voltage; the 20 kV version has a total length of 1,320 mm, an insertion depth of 513 mm, and manufacturer's article number 51-0102-004.
Typical Applications
The PG II is used to ascertain phase equality between two live conductors. According to the manufacturer, the equipment is intended for use in switchgear and network areas where unambiguous phase assignment is necessary.
Further information and product documentation can be found on the manufacturer's product page:
HORSTMANN product page for PG II
Specifications
- Product name: PG II.
- Manufacturer: HORSTMANN.
- Manufacturer's article no.: 51-0102-004 (20 kV version).
- Display: Optical, 3 red LEDs.
- Nominal frequency: 50 Hz (optional 60 Hz).
- Max. operating time under voltage: 60 s.
- Connecting cable: 1 m, coiled and high-voltage resistant.
- Operating class: B (phase shift detected in the range of 60°–300°).
- Total length (20 kV): 1,320 mm; insertion depth: 513 mm.
- Operating temperature: -25 °C to +70 °C; Climate classes: N and W.
- Standard references and test requirements indicated by the manufacturer (e.g., IEC 61481-2:2014 and DGUV requirements for retesting every 6 years) are mentioned on the manufacturer's page.
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