Cold-Starting The Ups Using Batteries - Huawei UPS5000-E-30 kVA User Manual

Integrated ups

Table of Contents

UPS5000-E-(30 kVA–180 kVA)

User Manual (Integrated UPS)

Figure 5-3 Bypass fault

Step 2 After the inverter shuts down, switch off the UPS output circuit breaker QF3.

Step 3 Switch off the battery string circuit breaker. If there are multiple battery strings,

switch off the general circuit breaker between battery strings and the UPS and

then switch off the circuit breaker for each battery string.

Step 4 Switch off the UPS input circuit breaker QF1.

Step 5 Switch off the input circuit breaker QF.

----End

5.4 Cold-Starting the UPS Using Batteries

Lead-Acid Battery Cold Start

Step 1 Check that batteries are properly connected. Use a multimeter to measure the

voltage of the entire battery string. The value should be greater than the specified

value (Voltage of a single battery x Number of batteries in the battery string).

Step 2 Switch off the UPS input circuit breaker QF1 and switch on the battery circuit

breaker. If there are multiple battery strings, switch on the circuit breaker for each

battery string and then the general circuit breaker between battery strings and the

UPS.

Step 3 Use a multimeter to measure the voltage between the positive and negative

battery strings connected to the UPS battery terminals. If the voltage of the entire

battery string is greater than the specified value (Voltage of a single battery x

Number of batteries in the battery string), the batteries are connected properly.

Step 4 Hold down the BATT START button on the bypass module for at least 2 seconds.

The system automatically enters the battery cold start status. The MDU displays

the initialization progress bar.

Step 5 After the MDU initialization is complete, start the inverter.

----End

Issue 02 (2022-12-30)

NO TE

To shut down the inverter and transfer the system to bypass mode, check that the UPS has

not generated an alarm and perform

Step

5 Operations

131

Table of Contents