User Manual

Hipulse - Single Phase ‘1+N’ UPS System

130 kVA - 110V

3.1.2Cable rating

 

 

 

 

 

 

NOMINAL CURRENT (Amps)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPS

3 Phase Input Mains with full

 

 

 

 

Battery at minimum

 

Rating

 

battery re-charge

 

1 Phase Output at full load

 

 

 

 

 

 

Battery Voltage

 

(kVA)

(less 5% for 12 pulse)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

380V

 

400V

 

415V

110V

115V

120V

 

380V

 

400V

 

415V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

63

 

60

 

58

272

260

250

 

83

 

80

 

77.5

40

84

 

80

 

77

364

349

334

 

110

 

106

 

103

50

105

 

100

 

96

454

434

416

 

137

 

133

 

129

60

126

 

119

 

115

545

521

500

 

164

 

159

 

155

80

165

 

157

 

151

727

695

666

 

219

 

213

 

206

120

245

 

233

 

223

1090

1043

1000

 

329

 

319

 

310

130

259

 

247

 

238

1181

1130

1083

 

357

 

346

 

336

150

300

 

285

 

275

1363

1304

1250

 

412

 

399

 

387

Table 3-1 UPS Module cabinet power cable rating

3.1.3General Notes

The following are guidelines only and superseded by local regulations and codes of practice where applicable:

1.The neutral conductor should be sized same as the output/ bypass current.

2.The earth conductor should be sized for carrying fault current for atleast 3 to 5 seconds or as guided by local electrical rules.

3.Consideration should be given to the use of paralleled smaller cables for heavy currents, as this can ease installation considerably.

4.When sizing battery cables, a maximum volt drop of 3V d.c. is permissible at the current ratings given in Table 3-1.

3.1.4Cable Connections

The rectifier input, bypass, output and battery power cables (all require lug type terminations) and are connected to busbars situated below the power isolator switches - as shown in figure 3.1 for 80kVA and fig 3.2 for 120 /160/ 200kVA.

A terminal block X3 is used for connecting the control cables to the battery circuit breaker and a second terminal block X4 is used for the external emergency stop facility, external OFF inverter, ext. Bypass, etc. these are female spade type connections (Fast-on 6.3 x 0.8) and are described later in Section 3.2

3.1.5Safety earth

The safety earth busbar is located between the Bypass and Output power supply connections as shown in the figure 3.1. The safety earth cable must be connected to the earth busbar and bonded to each cabinet in the system.

All cabinets and cable trunking should be earthed in accordance with local regulations.

14

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Image 34
Liebert 130 kVA user manual Cable rating, General Notes, Cable Connections, Safety earth