socomec Green Power 2.0 - Izing of Circuit Breakers; B Ackfeed Protection

15
ENGLISH
Green Power 2.0 320 to 400 kVA - Ref.: INMGP2401210-GB_12
4. 7.
sIzIng of cIrcuIt breakers
4. 7.1. Rectifier input circuit breaker
Values are only indicative as per the following conditions:
• the rectier and bypass input voltage is 3x400V overload 150 %
• the length of cabling between the circuit breaker and Green Power 2.0 is <10 metres.
Green Power 2.0 Power 320 kVA / 320 kW 400 kVA / 400 kW
Sizing of circuit breaker 630 A 800 A
Note: the sizing of circuit breakers takes into account a possible overload rate of 150%.
4. 7.2. Circuit breaker on bypass input
Values are only indicative as per the following conditions:
• the rectier and bypass input voltage is 3x400V overload 150 %
• the length of cabling between the circuit breaker and Green Power 2.0 is <10 metres.
UPS Bypass
Power kVA
320 400 500 800 1200 2000 2400
Sizing of circuit breaker 630 A 800 A 800 A 1200 A 2000 A 3000 A 4000 A
Note 1: the admissible input voltage tolerance is +/-10% - the sizing of circuit breakers has therefore to be
adjusted accordingly.
Note 2: the protection on the bypass input is intended for cable protection and does not take into account
the I²T of thyristors.
Nota 3: Ensure that the circuit breaker trigger curve takes into account a possible overload
4. 7.3. Circuit breaker on a common rectifier and bypass input (except C3)
Values are only indicative as per the following conditions:
• the rectier and bypass input voltage is 3x400V,
• the length of cabling between the circuit breaker and Green Power 2.0 is <10 metres.
Green Power 2.0 Power 320 kVA / 320 kW 400 kVA / 400 kW
Sizing of circuit breaker 630 A 800 A
Note: the admissible input voltage tolerance is +/-10% - the sizing of circuit breakers has therefore to be ad-
justed accordingly.
4. RequiSiteS
4. 8.
backfeeD protectIon
Green Power 2.0 is preset for the installation of external protection devices against the backfeed of dangerous
voltages on the auxiliary backup mains power supply line (AUX MAINS SUPPLY), the input power supply line
(MAINS SUPPLY) is already equipped in internal.
In the event that the equipment does not have a voltage protection device, warning labels must be afxed on
all mains power disconnectors installed away from Green Power 2.0 area, in order to remind support person-
nel that the circuit is connected to a UPS (see also § 2 “Safety” of this manual and paragraph 4.9.3 of standard
IEC62040-1, 2008). The label is supplied with the equipment.
If, in certain anomaly states, or because of the installation upstream (e.g. undetected and protected earth fault, or
high leakage in a phase, or with IT systems) there is a hazardous potential on neutral, a suitable isolating switch
must be provided on the neutral as well, or else there must be a detection, signalling and protection system.
For the connections, see to § 5. 15.