Functional requirements:
The communication SSPC mainly has the following functions:
a) Front end single-phase two hundred and twentyV AC power input, distributed by AC SSPC to branch loads, load capacity one hundredVA~5kVA (1A, 2.5A, 5A, 10A, twenty-threeA, a total of five specifications):
58彩票b) When a short-circuit fault occurs in the branch load, the AC SSPC will quickly take short-circuit protection measures to avoid affecting the common grid load, prevent the fault from expanding, and avoid significant drops in the input side voltage waveform;
c) When a nonlinear load surge occurs in the branch, the AC SSPC will quickly take corresponding overcurrent limiting measures to avoid significant impact on the AC power grid side:
58彩票d) Capable of self checking and identifying faults (overload, short circuit, etc.)
DC SSPC mainly has the following functions:
58彩票a) Front end 24V DC power input, distributed to branch loads by DC SSPC, with load power ranging from two hundredW to 2kW (5A, 10A, 20A, 42A, 83A, a total of five specifications);
b) When a short circuit fault occurs in the branch load, the DC SSPC will quickly take short-circuit protection measures to eliminate the impact on the common grid load, avoid the expansion of the fault, and avoid significant drops in the input side voltage waveform:
c) When a resistance capacitance load surge occurs in a branch, the DC SSPC will quickly take corresponding overcurrent limiting measures to avoid significant impacts on the DC grid side:
d) Capable of self checking and identifying faults (overload, short circuit, etc.)
parameter | Specifications | Company | minimum | typical | maximum |
Load capacitance | 2.5A/5A | A | 100 | ||
10A | A | 325 | |||
23A | A | 1000 | |||
Impulse and short-circuit threshold current | A | 3.5IRATE | |||
Impact and short circuit enter the current limiting station It takes time | us | 500 | |||
Maximum short-circuit current | A | 200 | |||
Maintain current | A | 2IRATE | 120 | ||
Current limiting operation time | ms | 15 | |||
AC power supply voltage | V | 198 | 220 | 242 | |
Working voltage frequency | Hz | 47.5 | 50 | 52.5 | |
Rated working current | A | 0.5 | 23 |