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4.4.2 Relay types MVAJ10, MVAJ20
Standard Following
Units
flag flag
Standard armature gap 1.5 to 1.4 1.5 to 1.25 mm
Make Follow through – just closed 0.5 0.5 mm
– just open 0.6 0.6 mm
Force to make 26 to 29 20 to 25 grammes
Force to make 30 to 35 25 to 30 grammes
(when less than 4 make)
Break Contact gaps 1.25 to 1.5 1.25 to 1.5 mm
Force to break 26 to 29 20 to 25 grammes
Break Cut off contact (bottom right-hand viewed from front)
Force to break 25 to 30 20 to 25 grammes
Contact gap measured 0.4 to 0.6 0.4 to 0.6 mm
at the armature centre
Section 5. SPARES
When ordering spares, quote the full relay model number and any component
reference numbers, or briefly describe the part required.
5.1 Repairs
Should the need arise for the equipment to be returned to AREVA T&D for repair, then
the form at the back of this manual should be completed and sent with the equipment
together with a copy of any commissioning test results.
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