Compare 2.0 / PG II phase comparators (single-pole and double-pole) 5–36 kV per IEC 61481-2

Compare 2.0 / PG II phase comparators (single-pole and double-pole) 5–36 kV per IEC 61481-2

Country: Germany · Model: Compare 2.0 / PG II

The single-pole Compare 2.0 for 5–36 kV and the double-pole PG II for 5–30 kV check whether the phases of two live conductors in medium-voltage networks coincide. Phasing with them is done before paralleling lines, closing rings and connecting new cables and cells, i.e. where an error is unacceptable.

Standard: IEC 61481-2:2014, class B (phase mismatch at 60–300°)
Compare 2.0: single-pole capacitive, 5–36 kV (ranges 5–10 / 10–20 / 20–36 kV), 4 LEDs, self-test, 2 lithium cells
PG II: double-pole, 5–30 kV (variants 5, 6, 10, 20, 30, 5–10, 10–12, 15–24 kV), 3 red LEDs
PG II – time under voltage: ≤ 60 s; connecting cable 1 m

Request a quote All specifications

Technical specifications

Standard	IEC 61481-2:2014, class B (phase mismatch at 60–300°)
Compare 2.0	single-pole capacitive, 5–36 kV (ranges 5–10 / 10–20 / 20–36 kV), 4 LEDs, self-test, 2 lithium cells
PG II	double-pole, 5–30 kV (variants 5, 6, 10, 20, 30, 5–10, 10–12, 15–24 kV), 3 red LEDs
PG II – time under voltage	≤ 60 s; connecting cable 1 m
Frequency	50 Hz (PG II – 60 Hz option)
Temperature	−25…+70 °C, classes N and W

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026.

Description

Both instruments are made to IEC 61481-2:2014 and assigned to operating class B, so the "phases do not coincide" state is indicated at a phase shift angle from 60 to 300°. The Compare 2.0 compares phases by touching two conductors in turn with a single instrument, and the range of 5–10, 10–20 or 20–36 kV is set with a rotary knob. Four bright LEDs (white, blue, green and red) show the operating states, and the built-in self-test checks serviceability before use. Two lithium cells keep the instrument ready for 6 years at 10 cycles per day and 230 working days per year, and the total length is 1420 mm. In the PG II, part A consists of an insulating stick with a contact electrode and an indication unit with three red LEDs, part B has a separate stick with an electrode for the reference signal, and both electrodes are connected by a 1 m coiled high-voltage cable. The stick is detached from the indication unit, so the instrument is transported compactly and safely.

How to choose

If phasing has to be done both indoors and on an outdoor installation, in dry or wet conditions, the Compare 2.0 is used, because the PG II is made for dry indoor rooms only. The PG II is made for 5, 6, 10, 20 and 30 kV and for ranges of 5–10, 10–12 and 15–24 kV with a total length of 1220–1420 mm, frequency 50 Hz, and 60 Hz to order. Both phase comparators work from −25 to +70 °C (climatic classes N and W) and are supplied in a bag or case. For checking absence of voltage before earthing a separate detector is needed, for example a Sirius or Comet for 6–30 kV.

Request a price and lead time

Compare 2.0 / PG II phase comparators (single-pole and double-pole) 5–36 kV per IEC 61481-2. We reply within one business day.

Or email office@usk.ua or call +38 (044) 339-50-20.

FAQ

What does class B mean for a phase comparator per IEC 61481-2?

A class B instrument shows the "phases do not coincide" state when the phase shift angle between phases lies between 60 and 300°.

How long can PG II stay under voltage?

The maximum operating time of the PG II under voltage is 60 s, so phasing is planned to fit within this interval.

Does Compare 2.0 work in networks with solar and wind plants?

Yes, but with decentralised generation from renewable sources the measurement may be interrupted. The comparison is then repeated, and according to the manufacturer false indication is excluded.

How often are the Compare 2.0 and PG II phase comparators tested?

Under DGUV Vorschrift 3 they are subject to mandatory periodic testing once every 6 years.