About Load Checker
LoadChecker™ blocks the mains supply to the load if excessive current is drawn through it. However, in the event of blocking, its patented self-reset feature normalizes the supply to the load, once the load is disconnected for a minimum time. The entire operation does not require any manual effort or attention. The product uses soft blocking technology, thus ensuring very long life.
How Load Checker Operates:
LoadChecker™ normally permits up to 20% overload / creepage without blocking. On further overload, it operates as per its inverse-time characteristics. Thus, a higher load is blocked much faster, than a lower load above rated levels. Thus, temporary overloads such as those during motor starting are permissible, and do not pose any problems.
Comparison of the LOAD CHECKER to AN ENERGY METER
|
Features |
Energy Meter (100% Metering) |
Load checker (100% Control) |
|
Purchase |
One Time High Cost |
One Time Low Cost |
|
Installation |
One Time Large Size Meter Box Reqd. Elaborate Sealing Process Installation at Customer Premises. Requires Additional Provisions such as Meter Box / MCB etc. |
One Time Very Small Size Can be Sealed for Life. Can be Installed at Pole-Top outside Consumer Premises Additional Provisions are not generally required. |
|
Reading / Recording |
Recurring Efforts Required Costs involved. Prone to Error |
Not Required for Fixed Tariff Connections |
|
Tampering |
Susceptible to Tamper since installed at Consumer Premises |
Factory Sealed and Resin Moulded – No access to inner parts unless broken / damaged. For Pole-Top Installations Physical Access is not riskworthy |
|
Meter Billing |
Requires Sophisticated Services |
Simple, Efficient, Effective and Consumer Friendly. |
|
Demand Side Mgmt. |
Not Usually Available, Provisions are costly in nature |
Restricts Unwarranted Load Increase. |
|
Energy Efficiency |
Cannot provide direct incentive for use of energy efficient devices |
Encourages the use of energy efficient devices such as CFLs |
|
Reliability |
High Component Count higher susceptibility to failure. |
Very Good – Low Component Count |
|
Stability/ Accuracy |
Very Good – But not critically required for low power consumption consumers |
Fair – Meets all practical requirements. |
|
Ratings |
5-20 A / 5-30A / 10-40A / 10-60A etc. Suitable for high as well as low power consumption levels. |
40W / 60W / 100W range. Suitable only for low power consumption levels. |
|
Modularity |
Usually Single Meter installed in a separate meter box provides a single connection |
A Single Load Limiter provides high (say 10) connections. |
|
Protection |
None / External MCB extra |
Short Circuit / Earthing Proof |
|
Dis - connection |
None |
Disconnection on overload with auto-reclose feature. Significant deterrent to servicing of unauthorized load |
|
Guarantee |
5-10 Years |
Long Guarantee Period > 10 Years |