crane resistor

Specifications

The resistor specifications as follows:

1) Technical data

2) Equivalent thermal performance simulation calculation

3)Overload current simulation calculation

4)Resistivity, resistance material, temperature variation curve

5) Electrical performance & mechanical performance

6)Test & documents

7)Standards

8)Connection diagram

9) Overall dimension & general drawing(figure).

1) Technical data

Item:  Resistor 43.43KW                      

Client:  PT. IMPSA Port Systems

Type: ZX18-2.12/43.43        

Air-cooling

Vertical cabinet

National and enterprise standards

Quantity of re-circuits in cabinet1

Resistance: =2.12ohm ±5%

Equivalent thermal performance simulation calculation (the following data are calculated according to one element).

The result of equivalent thermal performance simulation calculation is calculated including temperature is 20°C and one standard air pressure.

Constantly equivalent power: 43.43KW

The max temperature of the element heat point in heat stable(calculate): 254°C

Electrical performance & mechanical performance

a) Electrical performance

Rated current:                         143A

Rated power:                          43.43KW

Duration:                                50%

element materials:                     SUS 304

Inductance value:                        <15microH

Degrade of protection:                   IP23

Cooling:                              air-cooling

Element to the earth (electric clearance):  ≥30mm

Element to the earth (Creepage distance):  ≥50mm

Dielectric strength test(element to the earth): 5KV,50Hz, 1min

,

Resistor line incoming type: front incoming, incoming and outgoing from the bottom; there is no need maintenance on the side and rear

b) Mechanical performance

Circumstance temperature:            -10 to +50

Humidity Ave:                        90%

The resistance element:               304SUS304

Overall frame and fastener:    304SUS304

Insulation:                             porcelain insulator

Weight:                                 140KG

6) Test & document

Routine test

Resistance in room temperature      2.12ohm

Variable resistance                    2.1ohm,2.07ohm

Dielectric strength test(element to the earth):  3.5KV,50HZ,1min  

no breakdown and flash over

Overall dimension                  760mm*650 mm*950 mm

Installation dimension              710mm*450 mm

,There are holes in the installation place bottom for ventilation

Routine ex-work inspection report. Certification.