Operating Instruction · Rw Energy

Capacitor bank controller used manual

Capacitor‑switch controller (-10℃~+55℃), for switchgear up to 40.5kV. Local / remote control, operation lockout & event logging for reactive‑power capacitor bank switching.

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Updated2026.10

LanguageEnglish

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CAP-Switch Controllercapacity cabinet Controllerused manual

Document description

This document describes capacitor‑switch controller. It complies with IEC 60255‑1:2022 general requirements for measuring relays and IEC 60255‑27:2023 product‑safety (including insulation) requirements. It meets mechanical environmental tests IEC 60255‑21‑1 and full‑set EMC standard IEC 60255‑26:2023.

Environmental performance follows IEC 60068‑2 and IEC 60068‑2‑78. Compatible with vacuum, oil, gas circuit‑breakers and permanent‑magnet actuators. Configurable trip/close pulse width and dead‑time lockout via software. Local LCD‑keypad HMI with optional RF remote controller.

Non‑volatile memory stores operation, alarm and self‑check events. Alarms cover control‑circuit breakage, operating‑supply undervoltage and over‑operation‑count. Designed for pole‑mount outdoor reactive‑power capacitor‑bank switching.

Frequently asked questions

What types of breakers are compatible? What does pulse‑time parameter mean?

It works with vacuum, oil and gas breakers including permanent‑magnet actuators. Trip/close pulse time defines energizing duration for breaker coil, adjustable from 20‑999 ms. It must match coil specification: too‑short pulse fails operation; over‑long pulse risks coil burnout.

Are operation counters, alarms and event records lost after power‑off?

No. Counters, trip, startup and alarm events are saved inside non‑volatile flash memory. Records can be viewed on‑LCD and manually cleared with password. Power loss will not erase historical data.

How to toggle between local and remote control mode, what are their respective permissions?

Mode is changed via front‑panel button with dedicated LED indication. Under local mode, panel keys and optional RF remote work while external binary‑input commands are blocked. Remote mode accepts only external control and disables local manual switching.

What is close/trip dead‑time lockout for? Can it be fully disabled?

Dead‑time lockout restricts frequent capacitor switching to avoid repeated inrush stress on breaker mechanism and capacitor bank. It can be disabled by setting value to zero, but reasonable lockout time is recommended for site‑side equipment protection.

RW Energy

Manufacturers

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100-500 2013 China

Zhejiang Rockwell Energy Technology Co., Ltd. is an international enterprise specializing in the research, development and manufacturing of recloser controllers, power quality management, power monitoring systems and other high-end power equipment. In today's critical period of global energy transition and power system upgrading, the company has gathered a group of top talents in the fields of power engineering, automation control, software development, etc., who carry the enthusiasm and persistence for the power business, and are committed to overcoming the complex problems in the power system, and promoting the intelligent development of the power industry with innovative technology. Mission: To make global electricity smarter, more reliable and more efficient with innovative technology. Vision: To be the leader in global power intelligence.

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RW Energy

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Capacitor bank controller used manual

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