5500KVA High Capacity Resistive Inductive AC Variable Load Bank

System Parameters (take one load bank as examples)

Rating voltage/frequency

Three phases 690VAC 50/60Hz. It can be used for voltage less than 690V.

Load bank constitution

Apparent power 5500kVA, resistive power 4400kW, inductive power 3300kvar. Each load bank can divided into 2 sets (apparent power 2750kVA, resistive power 2200kW, inductive power 1650kvar) which can be operated individually, each load bank has circuit breaker which can be individually controlled, there is interconnection switch for two load banks to make each load bank capable of parallel, test, collect data, form report and print, etc.

Load resolutions (one unit)

Resistive load circuit 1: totally 19 steps, 1,2,2,5,10,10,20,50,100,200,200,200,200,200,200,200,200,200,200(kW)

Inductive load circuit 1: totally 17 steps, 1,2,2,5,10,10,20,50,50,100,200,200,200,200,200,200,200(kvar)

Resistive load circuit 2: totally 19 steps, 1,2,2,5,10,10,20,50,100,200,200,200,200,200,200,200,200,200,200(kW)

Inductive load circuit 1:totally 17 steps, 1,2,2,5,10,10,20,50,50,100,200,200,200,200,200,200,200(kvar)

Adjust precision

(load step value)

Resistive load: 1kW(0.02% of amount)

Inductive load: 1kvar (0.03% of amount)

Power factor

0.8-1 (power factor can be adjusted 0.1-1)

Load bank adjustment

1-5500KVA adjusted automatically or by manual, load can increase/ decrease gradually or instant load/unload.

Load control

Control modules and contactors; CAN bus mode, anti-electromagnetic interference.

Power consumption parameter

Resistive load in thermal state changing ≤1%; inductive load (reactor) 3 phases unbalanced degree ≤2%, thermal state changing ≤1%, reactor total loss ≤1%, magnetic saturation margin more than 30%.

Load bank precision

Less than ±3%

Meter display precision

0.5 degree

Power adjustment

1-5500KVA adjusted automatically or by manual, load bank has several working modes: increase/ decrease gradually, instant load/unload, etc.

Control power supply

1. connect external 380V/50Hz or connect internal 440V/60Hz,690V/60Hz.

2. No phase sequence for 3 phases, load bank can automatically switch phase sequence to make sure load bank in good working conditions.

Wiring method

Load bank power supply input——copper bar (delta connection )

Control power supply input——terminal block

Communication protocol

MODBUS-RTU

Load bank extension

Use interconnect switch 1+N

Compatibility

Can make parallel operation with domestic mainstream

Insulation degree

H degree

Max protection degree

IP55

Working type

Continuous working

Cooling

Forced air cooling, horizontal in and vertical cooling

Noise

Less than 80db at 3 meters from air outlet.

Case structure

20ft container, with a ladder to top of load bank, with mesh enclosure and protection door in air inlet and outlet, with lamp inside.

Transportation

Hoisting, there are lifting lug in top of load bank

Case color

Grey (RAL7035) or as customer's requirements.

Case Dimension

About 6058mm×2438 mm×2891mm (L*W*H)

Weight

About 22000kgs

Quantity

2 sets, total power 11000KVA

Operating Environment Parameter

Ambient temperature

-10℃~+65℃, average temperature 22℃

Wind speed

Maximum wind speed 20m/s in working status, 44m/s in non-working status.

Relative humidity

50%~95%

Altitude

≤3000 meters

Atmospheric Pressure

86~106kPa

Salt fog

Yes

Seismic degree

8

Security

No danger of fire, explosion, heavy pollution, chemical corrosive gases in the working place. Salt fog corrosion is OK when stored outdoors.