Rectifier No. 160 & 164
The Rectifier No. 164 is not suitable for connection to small generator sets or UPSs with outputs under 5kVA or to larger sets where the total rectifier load would be greater than 30% of the generators output.
Inputs and outputs are mounted on the front face of the rectifier using plug and socket arrangements (the 164 has cable AC input), the DC side using an ITT Cannon Golden D type (with the male connection mounted on the rectifier) for both power and alarm connections. Also mounted on the front face of the rectifier are 3 alarm indication LEDs, monitoring output, input and current limit conditions.
The rectifier has 2 preset voltage ranges, 52.5 - 53V commonly known as the narrow volt range or 54.75 - 55.25 known as the wide volt range. Its output voltage is selected externally to the rectifier by the use of a pair of shorting links (pins 1-2, 8-9) used in the socket of the DC plug and socket arrangement. When both links are present, the output will be within the narrow volt range and, conversely, in the wide volt range when both are absent.
Rectifier dimensions should not exceed 280mm high by 160mm wide by 495mm deep with a weight less than 14kg (12kg).
The output voltage range is determined by the requirements of the system of which the rectifier forms part. Although power systems containing Rectifier 160/164's will usually be preset to give the correct output voltage, this should always be checked (see section on system commissioning) before connection of the switch. Reference should also be made to the section on system commissioning, before the rectifier is connected to the mains supply.
When the rectifier is connected to the mains supply, correct operation is indicated by the following LED sequence.
If the system of which the rectifier forms part has an external or extended alarm system, in addition to an alarm indication being given via the LED display, an alarm will also be extended in the event of either the input or output failing.
When a Rectifier No. 160/164 is found to be faulty i.e. not output when a normal input is present, it should be replaced. No attempt should be made on site to repair or adjust a faulty rectifier. Systems which have a spare rectifier will continue to function normally in the absence of a faulty rectifier.
Replacement is effected by switching off the AC supply to the faulty rectifier and removing the rectifier output fuse. Remove both the AC and DC connections from the rectifier. The rectifier can then be slid out of its housing.
RECTIFIER ALARM CONDITIONS
DC PLUG AND SOCKET PIN NUMBERS
FARNELL PART NUMBERS
Last revised: November 28, 2010