PF-72
PF--96
PF-144
Beemet Power Factor meters are used to monitor changing power factor conditions on irreversible balanced load systems.
The moving coil indicators PF 72/96/144 and a phase angle adjuster are used to monitor changing power factor conditions on ir-reversible balanced load systems & Unbalanced System. The power factor is indirectly determined by measuring the phase angle between current and voltage (both sinusoidal). However the indicators are calibrated in values of cos ö of the angle ö . These meters offer several advantages in Switchboard & Generating Set panels. Number of meters can be mounted in a single Cut out(Mosaic Mounting). The Bezel, Front window glass and Dial can be easily replaced.
Salient Features
• Knife edge pointer.
• Glass filled polycarbonate housing.
• Easily replicable glass and bezel.
• Easy installation with swivel screws.
General Specifications
Scale & Pointer
| Pointer | Knife-edge pointer |
| Pointer deflection | 0 - 90º |
| Scale characteristics | Non-Linear |
| Scale division | Coarse-fine |
| Interchangeability | Scale are interchangeble |
MECHANICAL DATA
| Case details | Moulded square case suitable for mounting in Control / Switchgear panels, Machinery consoles. |
| Case material | Glass filled polycarbonate flame retardant and drip proof |
| front facia | Glass |
| Colour of bezel | Black |
| Position of use | Vertical |
| Panel fixing | Swivel screws |
| Mounting | Stackable in a single cutout |
| Panel thickness | < 25 mm |
| Terminals | Hexagon studs, M4 screws and
wire clamps E3 (DIN 46282) |
ELETRICAL DATA
| Measured quantity | Power Factor |
| Overload capacity (acc to IS | 1248/ IEC 51/ DIN EN 60051) |
| Short duration | 2 times rated voltage 5 Sec max overload 10 times rated current 5 Sec max overload |
| Accuracy | 1.5 according to IS:1248 |
Enviromental Condition
| Climatic suitability | Climate category II as per IS : 1248
(climatic class 3 according to VDE / VDI 3540) |
| Operating temperature | -10 ... + 550 C |
| Storage temperature | -25 .... + 650 C |
| Relative humidity | < 75% annual average non-condensing |
| Shock resistance | 15g. 11ms |
| Vibration resistance | 10-55-10 Hz/0.15 mm 1.5 g at about 50 Hz. |
Dimensions
| Model | Dimensions (mm) | Scale Length | ||||||
|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | Panel Cutout | ||
| PF-72 | 72 | 66 | 80 | 68 | 5.5 | – | 68 | 61 |
| PF-96 | 96 | 90 | 53 | 92 | 5.5 | 64 | 92 | 97 |
| PF-144 | 144 | 136 | 53 | 138 | 6.5 | 64 | 138 | 146 |
Connection Diagrams
PF 96/144 Single phase
PF 72/96/144 three ph. bal. Load
PF 72/96/144 three ph. bal. Load
PF96/144 3ph. 3W Unbal. Load
