What is Solar Protection Relay? Comap Mainspro | Inteli Pro

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Solar Protection Relay

• What is Solar Protection Relay?

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Solar Protection Relay

• A Solar Protection Relay is used to connect
  embedded generators over 30kW to the grid. There
  are two main categories of Solar Protection
  Relays, these being Grid Protection Relays and
  Zero Export Relays.

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What is a Grid Protection Relay?

• A grid protection relay, sometimes called a
  grid-tie or mains protection relay, is a device
  that ensures the power quality is acceptable  to
  be exported to the grid. These include under/over
  voltage, under/over current and frequency
  protection. What makes these suitable for
  embedded generators is the anti-islanding
  function in addition to power quality protection.

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ComAp MainsPro

• ComAp MainsPro is a Solar Protection Relay with
  the 'Mains-Disconnect' Function.

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What is Anti-Islanding?

• Anti-Islanding is a type of electrical protection
  for embedded generators such as grid connected
  solar, wind or diesel. It ensures the generator
  disconnects electrical supply to the grid in the
  event of a blackout. Anti-Islanding protection
  exists to protect personnel and equipment
  connected the grid in the occurrence of a fault
  or maintenance.

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ComAp InteliPro

• The InteliPro is a Solar Protection Relay used
  for Zero Export applications.

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What is a Zero-Export Relay?

• A zero export relay is similar to a grid
  protection relay as it has all of the power
  quality and anti-islanding protection functions.
  It has the added function of being able to
  monitor the current flowing and disconnect at a
  pre-set value.  This ensures the embedded
  generator never exceeds the maximum export value
  allowed by the DNSP.

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Power Ramping

• Zero Export Relays trip the solar system when
  production exceeds the permitted amount. It's
  good practice to ramp the power down so that the
  site doesn't trip on days where the production
  may exceed load (eg. a school at the weekend).

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BCJ Controls

• BCJ Controls - commercial solar network
  protection unit - switchboard manufacturing
  including protection relay anti-islanding and
  zero export devices. BCJ Controls is a solar
  technology company set up by ex-utility
  industrial sparkies. Between them they have a
  large amount of experience in electrical grid
  protection, as well as dealing with utilities on
  a day-to-day basis.

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BCJ Controls

• Contact us(02) 9534 8465Visit us
• http//bcjcontrols.com.au/