Three Phase 20 Amp Primary Injection Unit
Specifications
Mechanical
- Steel carry case
- Size 312mm Wide x 140mm Deep x 234mm High
- Colour RAL9005 (Jet Black)
- Carry handle
- Weight 6Kg
Electrical
- Input 400v AC +10% / -6% 3 Phase and Neutral
- Frequency 50/60Hz
- Supply Current 0.2 Amps Typical, 1 Amp Maximum
- Output injection current 20Amps +/- 10%
- Test lead insulation 300 Volts AC
Description
For electricity meter installations, the PIU enables commissioning and calibration checks to be made when no customer load is available, including new or unoccupied sites.This unit is a smaller and lighter version of the 100 Amp unit making it an ideal unit for carrying between installation sites. If it is not possible to safely access the site CT's then it is possible to perform a secondary test using the 20/5A CT to convert the injection current to a safe level, which is normally carried out one phase at a time. The unit ships with a set of flexible current injection leads with 4mm banana plug style terminations to provide single or multi-turn pass through of the installed client current transformers. In this way, a simulated primary load is "generated" at a level necessary for the meter system to operate in the required range.
Power is supplied to the PIU from the voltage connections at the meter test block using the built in power connection lead.
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