Power Analyzer UMG 507
Application
Summation current transformers have the task of adding up the secondary currents from various main, CTs and, therefore, making the measurement of an instrument accessible. Summation current transformers redeliver a norm signal at the output. This means that not only an addition of the input currents takes place but also the sum is divided through the amount of summands (number of inputs). We differentiate between summation current transformers for even and uneven main transformers.
General mechanical properties
- Sturdy plastic housing made of ABD, IP40
- Flame resistant in accordance with UL94VO and self extinguishing
- Nickel clamps with positive-negative screws
- Integrated contact protection, IP10
- Nominal frequency 50 Hz to 60 Hz
- Insulation class E (other classifications upon request)
- Thermal short-term current Ith= 60 x IN/1s
- Surge current Idyn=2.5 x IN
- Maximum operating voltage Um = 0.72kV (other voltages upon request)
- Calculation of insulation level (test voltage), 3kV/1min (other voltages upon request)
- Overvoltage limit factor FS5 or FS10
Versions
| Description | Type | Primary current in A |
Secondary current in A |
Power in VA |
Class | Item number |
| Summation current transformer | IPS20 | 5+5 | 5 | 15 | 1 | 15.02.510 |
| Summation current transformer | IPS30 | 5+5+5 | 5 | 15 | 1 | 15.02.515 |
| Summation current transformer | IPS40 | 5+5+5+5 | 5 | 15 | 1 | 15.02.520 |
Note: the conversion ratio of the main transformer must be provided when placing an order.
The ratio of the largest to smallest primary current should not be greater than 10:1 for uneven main transformers.
