Introduction

HTEQ V series thyristor-switched capacitor bank is ideally suited for industrial facilities and infrastructures where the reactive power demands dramatically fluctuate. The loads associated to the fluctuation are the ones which we refer to as dynamic loads including:

● Rolling mills 

● Rubber mixers, extruders, plastic injection molding machines 

● Ore crushers and grinders

● Metal shredders and stamping machines 

● Spot welding machines and arc welding machines

● Harbor cranes, mining hoists and conveyors

● Induction furnaces and arc furnaces

Benefits

● Enhanced energy efficiency due to reduced transmission losses

● Lower Electricity bill with reduced maximum kVA demand or eliminated low power factor penalty

● Improved voltage drops during load fluctuation

● Reduction of harmonics, mainly 5th and 7th  

● Reduced infrastructure (gensets, transformers, cables ) capital expenditure by releasing system capacity

● Minimal maintenance without replacement of "worn out" contactors

Features

Voltage ratings from 230V to 1140V 

Super Fast Dual-processor (DSP+CPLD) PFC Controller

● Ultra-rapid power factor correction-less than 20ms response time

● Real transient-free capacitor switching technology-double zero-crossing switching

● Capacitor Servicing time balancing mechanism

● Four-quadrant operation suitable for installations with stand-by generator, on-grid photovoltaic generation.

Robust Thyristor Switches

Equipped with PLL(Phase Locked Loop) chip to control the switching time precisely and thus overcomes the problem that conventional thyristor switches can not be switched on quickly after it being just switched off.

● Communication between PFC controller and thyristor switches via Class 5 Ethernet cable for super anti-interference performance.

● Excellent ventilation performance via the combination of tailor-made Aluminum heat sink and axial fan

● Fault indication LEDs equipped

User-friendly 7-inch HMI

● ON/OFF Status display of capacitor stages 

● Voltage, current, active power, reactive power, apparent power, PF.

● Graphical display of harmonic spectrum bar chart up to 31st order

● Waveforms display of grid voltage, grid current, load current, compensating current

● Three-month event log with time stamp

● Easy parameter configuration

● Modbus communication

6% or 13% detuning reactors equipped to prevent resonance conditions and to reduce existing system harmonics

Single-phase steps connected between phases for installations where single-phase loads are connected between phase such as spot welding machines

Hybrid combination of three-phase steps with delta connection and single-phase steps connected between phase and neutral for unbalance 4-wire distribution system in commercial buildings, hospitals

Flexibility in the cabinet design (e.g. dimensions, color, degree of protection up to IP 54, cable entry)

Specifications